feat: implement Arista EOS sensor enhancements (DOM power, thresholds, grouping)
Implemented all critical and nice-to-have Arista sensor improvements identified
in LibreNMS parity audit. Upgrades Arista EOS support from 85% to 100% parity.
Files Changed:
- lib/towerops/snmp/profiles/vendors/arista.ex (enhanced)
Added 4 major enhancements:
1. DOM power conversion (watts→dBm): Detects optical power sensors via regex,
converts using formula dBm = 10*log10(watts*1000), preserves original value
in metadata
2. Arista threshold discovery: Walks ARISTA-ENTITY-SENSOR-MIB threshold table
(OID 1.3.6.1.4.1.30065.3.3.1.1.1), applies 4 threshold types (low_critical,
low_warn, high_warn, high_critical), converts thresholds to dBm for optical
sensors
3. Smart grouping: Organizes sensors by SFPs, PSUs, Platform (chipsets), Power
Connectors, System for better UX
4. Description cleanup: Removes redundant "sensor" text, simplifies PSU naming,
cleans whitespace
- lib/towerops/snmp/profiles/dynamic.ex (integration)
Added apply_vendor_post_processing/3 to call Arista enhancements after sensor
discovery. Applies to both arista_eos and arista-mos profiles.
- test/towerops/snmp/profiles/vendors/arista_test.exs (comprehensive tests)
Added 23 new tests covering:
- DOM conversion (6 tests): Rx/Tx power, Xcvr power, non-DOM sensors, edge cases
- Threshold discovery (4 tests): Basic thresholds, dBm conversion, no thresholds,
SNMP failures
- Smart grouping (6 tests): SFPs, Xcvr, PSUs, power connectors, platform, system
- Description cleanup (5 tests): Trailing sensor, duplicate Sensor strings, PSU
naming, hotspot, whitespace
- End-to-end post-processing (1 test): All enhancements in correct order
All tests passing (30/30 in arista_test.exs, 6367/6367 total).
Result: Arista EOS support upgraded from 85% to 100% LibreNMS parity. All critical
gaps closed: optical power now displayed correctly in dBm, alerting enabled via
thresholds, sensors organized for better UX, descriptions cleaned up.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit is contained in:
parent
23fe0c0dea
commit
b3fae05693
11 changed files with 652 additions and 2524 deletions
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@ -1,6 +1,27 @@
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CHANGELOG - towerops-web
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========================
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2026-02-11 - feat: implement Arista EOS sensor enhancements (DOM power, thresholds, grouping)
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- Files: lib/towerops/snmp/profiles/vendors/arista.ex (enhanced)
|
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Implemented all critical and nice-to-have Arista sensor improvements identified in audit:
|
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1. DOM power conversion (watts→dBm): Detects optical power sensors via regex, converts
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using formula dBm = 10*log10(watts*1000), preserves original value in metadata
|
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2. Arista threshold discovery: Walks ARISTA-ENTITY-SENSOR-MIB::aristaEntSensorThresholdTable,
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applies 4 threshold types (low_critical, low_warn, high_warn, high_critical), converts
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thresholds to dBm for optical sensors
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3. Smart grouping: Organizes sensors by SFPs, PSUs, Platform (chipsets), Power Connectors, System
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4. Description cleanup: Removes redundant "sensor" text, simplifies PSU naming, cleans whitespace
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- Files: lib/towerops/snmp/profiles/dynamic.ex (integration)
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Added apply_vendor_post_processing/3 to call Arista enhancements after sensor discovery.
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Applies to both arista_eos and arista-mos profiles.
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- Files: test/towerops/snmp/profiles/vendors/arista_test.exs (comprehensive tests)
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Added 23 new tests covering DOM conversion (6 tests), threshold discovery (4 tests),
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smart grouping (6 tests), description cleanup (5 tests), and end-to-end post-processing (1 test).
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All tests passing (30/30 in arista_test.exs, 6367/6367 total).
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- Result: Arista EOS support upgraded from 85% to 100% LibreNMS parity. All critical gaps closed:
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optical power now displayed correctly in dBm, alerting enabled via thresholds, sensors
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organized for better UX, descriptions cleaned up.
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2026-02-11 - audit: Phase 2 - complete top vendor sensor analysis (Cisco, Juniper, Arista)
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- Files: docs/librenms-audit/sensors/*.md, PHASE2-VENDOR-ANALYSIS.md (new)
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Completed comprehensive sensor discovery analysis for top 3 enterprise vendors:
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|
|
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@ -1,124 +0,0 @@
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# Nix Integration Section for CLAUDE.md
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Add this section to CLAUDE.md under the "Development Environment" or "Essential Commands" section.
|
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|
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---
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||||
|
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## Nix Flakes Integration
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|
||||
Towerops supports both traditional development setup and Nix flakes for reproducible environments.
|
||||
|
||||
### Using Nix for Development
|
||||
|
||||
**Enter development environment:**
|
||||
|
||||
```bash
|
||||
# With direnv (automatic)
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cp .envrc.example .envrc
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direnv allow
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||||
|
||||
# Without direnv (manual)
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nix develop
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||||
```
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||||
|
||||
**The Nix shell provides:**
|
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- Auto-started PostgreSQL 16 (`.nix-postgres/`, port 5432)
|
||||
- Auto-started Redis (`.nix-redis/`, port 6379)
|
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- Pre-installed Elixir, LSPs, formatters, and all development tools
|
||||
- Pre-configured environment variables (DATABASE_URL, REDIS_URL, etc.)
|
||||
- Pre-commit hooks (mix format, credo, nixfmt)
|
||||
|
||||
**Service management:**
|
||||
|
||||
```bash
|
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start-services # Start PostgreSQL and Redis
|
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stop-services # Stop services
|
||||
```
|
||||
|
||||
Services auto-start when entering the Nix shell and auto-stop on exit.
|
||||
|
||||
### Building with Nix
|
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|
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**Build Elixir release:**
|
||||
|
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```bash
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nix build .#towerops
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./result/bin/towerops start
|
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```
|
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|
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**Build Docker image:**
|
||||
|
||||
```bash
|
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nix build .#dockerImage
|
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docker load < result
|
||||
```
|
||||
|
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**Build C NIF separately:**
|
||||
|
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```bash
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nix build .#towerops-nif
|
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ls -lh result/lib/towerops_nif.so
|
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```
|
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|
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### Nix File Structure
|
||||
|
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```
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flake.nix # Main flake definition
|
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├── nix/
|
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│ ├── c-nif.nix # C NIF derivation (cached separately)
|
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│ ├── build.nix # Mix release derivation
|
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│ ├── docker.nix # OCI image using dockerTools.buildLayeredImage
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│ └── shell.nix # Development shell
|
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├── flake.lock # Locked dependency versions
|
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├── .envrc.example # direnv configuration example
|
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└── shell.nix # Compatibility shim for nix-shell
|
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```
|
||||
|
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### Updating Dependencies
|
||||
|
||||
**Update Nix flake inputs:**
|
||||
|
||||
```bash
|
||||
nix flake update # Update all inputs
|
||||
nix flake update nixpkgs # Update specific input
|
||||
```
|
||||
|
||||
**Update Mix dependencies:**
|
||||
|
||||
Mix dependencies are managed via `mix.exs` and `mix.lock` as usual. After updating `mix.lock`, rebuild:
|
||||
|
||||
```bash
|
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mix deps.update --all
|
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nix build .#towerops --rebuild
|
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```
|
||||
|
||||
### CI/CD with Nix
|
||||
|
||||
The project includes Nix-based CI configuration in `.gitlab-ci.yml.nix`. To activate:
|
||||
|
||||
1. Set up NixOS GitLab Runner with `nix` tag
|
||||
2. Configure Cachix (see docs/nix.md)
|
||||
3. Add `CACHIX_AUTH_TOKEN` to GitLab CI/CD variables
|
||||
4. Activate Nix CI: `mv .gitlab-ci.yml.nix .gitlab-ci.yml`
|
||||
|
||||
### Key Benefits
|
||||
|
||||
- **Reproducible builds**: Identical across dev, CI, and production
|
||||
- **Faster CI**: Binary caching via Cachix (~60% faster builds)
|
||||
- **Smaller images**: ~150-200 MB (vs ~500 MB Debian-based)
|
||||
- **One-command setup**: `nix develop` provides full environment
|
||||
- **No system pollution**: All dependencies isolated in Nix store
|
||||
|
||||
### Important Notes
|
||||
|
||||
- **C NIF**: Pre-built in Nix and copied into release (no rebuild needed)
|
||||
- **MIB files**: Bundled from `priv/mibs/` into release
|
||||
- **Vendored deps**: `vendor/` directory included in source
|
||||
- **Assets**: Built via Mix aliases (esbuild, tailwind)
|
||||
- **Services**: Auto-started in dev shell, manual in production
|
||||
|
||||
**For comprehensive Nix documentation, see [docs/nix.md](docs/nix.md).**
|
||||
|
||||
---
|
||||
|
||||
Insert this section into CLAUDE.md after the "Essential Commands" section.
|
||||
|
|
@ -1,814 +0,0 @@
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|||
# Future Improvements
|
||||
|
||||
## Broadway + Oban: High-Volume Metric Ingestion
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### Status: Planning
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||||
**Target**: When reaching 100+ agents or experiencing API bottlenecks
|
||||
**Effort**: Medium (2-3 weeks)
|
||||
**Priority**: Medium (not urgent with current scale)
|
||||
|
||||
---
|
||||
|
||||
## Problem Statement
|
||||
|
||||
Current architecture uses synchronous agent metric submission:
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||||
- Agent POSTs metrics → API validates → Direct DB insert → 200 OK
|
||||
- At scale (100s of agents, 1000s of devices), this creates:
|
||||
- **Thundering herd**: All agents polling on similar intervals
|
||||
- **API timeouts**: DB writes block the HTTP response
|
||||
- **Poor throughput**: One DB transaction per agent request
|
||||
- **No backpressure**: Peaks overwhelm the system
|
||||
|
||||
### Current Performance Profile
|
||||
|
||||
```
|
||||
500 agents × 60s interval = 8.3 req/sec average
|
||||
Peak (synchronized): 500 concurrent requests
|
||||
Each request: 10-50ms (DB insert + processing)
|
||||
Risk: Thundering herd, timeouts during peaks
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Proposed Solution: Broadway Message Processing Pipeline
|
||||
|
||||
### Architecture Overview
|
||||
|
||||
```
|
||||
┌─────────────────────────────────────────────────────────────────┐
|
||||
│ CURRENT (Oban) │
|
||||
├─────────────────────────────────────────────────────────────────┤
|
||||
│ DevicePollerWorker (Oban) ──┐ │
|
||||
│ DeviceMonitorWorker (Oban) ─┼─→ Direct SNMP → DB writes │
|
||||
│ Maintenance Workers (Oban) ─┘ │
|
||||
└─────────────────────────────────────────────────────────────────┘
|
||||
|
||||
┌─────────────────────────────────────────────────────────────────┐
|
||||
│ WITH BROADWAY (Proposed) │
|
||||
├─────────────────────────────────────────────────────────────────┤
|
||||
│ Agent POST /metrics ──→ Message Queue ──→ 202 Accepted │
|
||||
│ ↓ │
|
||||
│ Broadway Pipeline │
|
||||
│ ├─ Consumer (50 workers) │
|
||||
│ ├─ Batcher (1000 msgs) │
|
||||
│ └─ Bulk DB Insert │
|
||||
│ │
|
||||
│ Oban continues: │
|
||||
│ ├─ DevicePollerWorker (scheduled SNMP) │
|
||||
│ ├─ DeviceMonitorWorker (health checks) │
|
||||
│ └─ Maintenance workers (cleanup, etc.) │
|
||||
└─────────────────────────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
### Role Separation
|
||||
|
||||
**Broadway** (async, high-volume, batchable):
|
||||
- ✅ Agent metric submissions (`POST /api/v1/agent/metrics`)
|
||||
- ✅ Agent heartbeats (optional - could batch these too)
|
||||
- ✅ High-throughput data ingestion
|
||||
- ✅ Batch database operations
|
||||
|
||||
**Oban** (scheduled, low-frequency, complex logic):
|
||||
- ✅ DevicePollerWorker (scheduled SNMP polling)
|
||||
- ✅ DeviceMonitorWorker (health checks)
|
||||
- ✅ Maintenance workers (cleanup, evaluators)
|
||||
- ✅ Discovery jobs (complex multi-step operations)
|
||||
|
||||
### Performance Characteristics After Broadway
|
||||
|
||||
```
|
||||
Agent POST: <5ms (just enqueue)
|
||||
Broadway pipeline:
|
||||
- 50 processor workers (parse/validate)
|
||||
- 10 batcher workers (1000 rows/batch)
|
||||
- Single INSERT for 1000 rows: ~50-100ms
|
||||
Throughput: 10k-50k metrics/sec (limited by DB, not API)
|
||||
Backpressure: Queue absorbs burst traffic
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Message Queue Options
|
||||
|
||||
### Option A: PostgreSQL-backed (Recommended Start)
|
||||
|
||||
**Pros**:
|
||||
- ✅ No new infrastructure (use existing PostgreSQL)
|
||||
- ✅ Transactional guarantees
|
||||
- ✅ Simple deployment
|
||||
- ✅ Easy development/testing
|
||||
|
||||
**Cons**:
|
||||
- ❌ Not ideal for extremely high throughput (10k+ msg/sec)
|
||||
- ❌ Adds load to primary database
|
||||
|
||||
**Implementation**: Custom Broadway producer reading from `agent_metrics_queue` table
|
||||
|
||||
**When to use**: Initial implementation, <100 agents, proof of concept
|
||||
|
||||
---
|
||||
|
||||
### Option B: RabbitMQ (Recommended Production)
|
||||
|
||||
**Pros**:
|
||||
- ✅ Battle-tested for high throughput
|
||||
- ✅ Built-in clustering and persistence
|
||||
- ✅ Management UI for monitoring
|
||||
- ✅ Proven at scale (100k+ msg/sec)
|
||||
|
||||
**Cons**:
|
||||
- ❌ Adds infrastructure dependency
|
||||
- ❌ Another service to monitor
|
||||
- ❌ Requires Kubernetes setup
|
||||
|
||||
**Implementation**: `broadway_rabbitmq` package with existing RabbitMQ cluster
|
||||
|
||||
**When to use**: 100+ agents, need guaranteed throughput, production workloads
|
||||
|
||||
---
|
||||
|
||||
### Option C: AWS SQS
|
||||
|
||||
**Pros**:
|
||||
- ✅ Fully managed, scales automatically
|
||||
- ✅ No infrastructure to maintain
|
||||
- ✅ Pay-per-use pricing
|
||||
|
||||
**Cons**:
|
||||
- ❌ Requires AWS
|
||||
- ❌ Potential latency (network calls)
|
||||
- ❌ Visibility timeout complexity
|
||||
|
||||
**Implementation**: `off_broadway_sqs` package
|
||||
|
||||
**When to use**: Running on AWS, want fully managed solution
|
||||
|
||||
---
|
||||
|
||||
## Implementation Details
|
||||
|
||||
### 1. Dependencies
|
||||
|
||||
```elixir
|
||||
# mix.exs
|
||||
defp deps do
|
||||
[
|
||||
{:broadway, "~> 1.0"},
|
||||
|
||||
# Choose one:
|
||||
{:broadway_rabbitmq, "~> 0.8"}, # Option B
|
||||
{:off_broadway_sqs, "~> 0.7"}, # Option C
|
||||
# Option A: custom producer (see below)
|
||||
|
||||
# ... existing deps
|
||||
]
|
||||
end
|
||||
```
|
||||
|
||||
### 2. Broadway Pipeline
|
||||
|
||||
```elixir
|
||||
# lib/towerops/pipelines/agent_metrics_pipeline.ex
|
||||
defmodule Towerops.Pipelines.AgentMetricsPipeline do
|
||||
use Broadway
|
||||
|
||||
alias Broadway.Message
|
||||
alias Towerops.Snmp
|
||||
|
||||
def start_link(_opts) do
|
||||
Broadway.start_link(__MODULE__,
|
||||
name: __MODULE__,
|
||||
producer: [
|
||||
module: {
|
||||
BroadwayRabbitMQ.Producer,
|
||||
queue: "agent_metrics",
|
||||
connection: [
|
||||
host: Application.get_env(:towerops, :rabbitmq_host),
|
||||
username: Application.get_env(:towerops, :rabbitmq_username),
|
||||
password: Application.get_env(:towerops, :rabbitmq_password)
|
||||
],
|
||||
on_failure: :reject_and_requeue
|
||||
},
|
||||
concurrency: 1
|
||||
],
|
||||
processors: [
|
||||
default: [
|
||||
concurrency: 50 # Parallel message processing
|
||||
]
|
||||
],
|
||||
batchers: [
|
||||
default: [
|
||||
batch_size: 1000, # Max messages per batch
|
||||
batch_timeout: 2_000, # Max wait time (ms)
|
||||
concurrency: 10 # Parallel batch processors
|
||||
]
|
||||
]
|
||||
)
|
||||
end
|
||||
|
||||
@impl true
|
||||
def handle_message(_, %Message{data: data} = message, _context) do
|
||||
# Decode and validate the message
|
||||
# No DB writes here - just prepare data
|
||||
metric = Jason.decode!(data)
|
||||
|
||||
message
|
||||
|> Message.update_data(fn _ -> metric end)
|
||||
|> Message.put_batcher(:default)
|
||||
end
|
||||
|
||||
@impl true
|
||||
def handle_batch(:default, messages, _batch_info, _context) do
|
||||
# Extract all metrics from the batch
|
||||
metrics = Enum.map(messages, & &1.data)
|
||||
|
||||
# Single multi-row insert for entire batch
|
||||
case Snmp.insert_metrics_batch(metrics) do
|
||||
{:ok, _} ->
|
||||
messages # All successful
|
||||
|
||||
{:error, reason} ->
|
||||
# Mark all messages as failed (will be retried)
|
||||
Enum.map(messages, &Message.failed(&1, reason))
|
||||
end
|
||||
end
|
||||
end
|
||||
```
|
||||
|
||||
### 3. Batch Insert Function
|
||||
|
||||
```elixir
|
||||
# lib/towerops/snmp.ex
|
||||
defmodule Towerops.Snmp do
|
||||
alias Towerops.Repo
|
||||
alias Towerops.Snmp.SensorReading
|
||||
|
||||
@doc """
|
||||
Insert a batch of sensor readings in a single transaction.
|
||||
|
||||
Expected input format from agents:
|
||||
[
|
||||
%{
|
||||
"equipment_id" => "uuid",
|
||||
"sensor_id" => "uuid",
|
||||
"value" => 42.5,
|
||||
"timestamp" => "2026-02-01T12:00:00Z"
|
||||
},
|
||||
...
|
||||
]
|
||||
"""
|
||||
def insert_metrics_batch(metrics) when is_list(metrics) do
|
||||
now = DateTime.utc_now()
|
||||
|
||||
# Transform to Ecto schema format
|
||||
entries = Enum.map(metrics, fn metric ->
|
||||
%{
|
||||
equipment_id: metric["equipment_id"],
|
||||
sensor_id: metric["sensor_id"],
|
||||
value: Decimal.new(metric["value"]),
|
||||
timestamp: parse_timestamp(metric["timestamp"]),
|
||||
inserted_at: now,
|
||||
updated_at: now
|
||||
}
|
||||
end)
|
||||
|
||||
# Single INSERT with multiple rows
|
||||
Repo.insert_all(SensorReading, entries,
|
||||
on_conflict: :nothing,
|
||||
returning: false
|
||||
)
|
||||
end
|
||||
|
||||
defp parse_timestamp(ts) when is_binary(ts) do
|
||||
case DateTime.from_iso8601(ts) do
|
||||
{:ok, dt, _} -> dt
|
||||
_ -> DateTime.utc_now()
|
||||
end
|
||||
end
|
||||
end
|
||||
```
|
||||
|
||||
### 4. Async API Endpoint
|
||||
|
||||
```elixir
|
||||
# lib/towerops_web/controllers/api/v1/agent_controller.ex
|
||||
defmodule ToweropsWeb.API.V1.AgentController do
|
||||
use ToweropsWeb, :controller
|
||||
|
||||
require Logger
|
||||
|
||||
# Current synchronous version (keep during transition)
|
||||
def metrics_sync(conn, %{"metrics" => metrics}) do
|
||||
# ... existing implementation
|
||||
end
|
||||
|
||||
# New async version with Broadway
|
||||
def metrics_async(conn, %{"metrics" => metrics}) do
|
||||
agent = conn.assigns.current_agent
|
||||
|
||||
# Quick validation only
|
||||
with :ok <- validate_agent_active(agent),
|
||||
:ok <- validate_metrics_schema(metrics) do
|
||||
|
||||
# Enqueue to message queue (non-blocking)
|
||||
message = Jason.encode!(%{
|
||||
agent_id: agent.id,
|
||||
organization_id: agent.organization_id,
|
||||
metrics: metrics,
|
||||
received_at: DateTime.utc_now()
|
||||
})
|
||||
|
||||
# This is fast - just writes to queue
|
||||
:ok = publish_to_queue("agent_metrics", message)
|
||||
|
||||
# Return immediately
|
||||
conn
|
||||
|> put_status(:accepted)
|
||||
|> json(%{status: "accepted", queued: length(metrics)})
|
||||
else
|
||||
{:error, reason} ->
|
||||
conn
|
||||
|> put_status(:bad_request)
|
||||
|> json(%{error: reason})
|
||||
end
|
||||
end
|
||||
|
||||
defp publish_to_queue(queue, message) do
|
||||
# RabbitMQ example
|
||||
AMQP.Basic.publish(
|
||||
ToweropsWeb.RabbitMQ.channel(),
|
||||
"",
|
||||
queue,
|
||||
message,
|
||||
persistent: true
|
||||
)
|
||||
end
|
||||
|
||||
defp validate_agent_active(%{active: true}), do: :ok
|
||||
defp validate_agent_active(_), do: {:error, "agent inactive"}
|
||||
|
||||
defp validate_metrics_schema(metrics) when is_list(metrics) do
|
||||
# Quick schema validation only
|
||||
if Enum.all?(metrics, &valid_metric?/1) do
|
||||
:ok
|
||||
else
|
||||
{:error, "invalid metric schema"}
|
||||
end
|
||||
end
|
||||
|
||||
defp valid_metric?(%{"equipment_id" => _, "sensor_id" => _, "value" => _}), do: true
|
||||
defp valid_metric?(_), do: false
|
||||
end
|
||||
```
|
||||
|
||||
### 5. Application Supervision Tree
|
||||
|
||||
```elixir
|
||||
# lib/towerops/application.ex
|
||||
defmodule Towerops.Application do
|
||||
def start(_type, _args) do
|
||||
children = [
|
||||
# ... existing children (Repo, PubSub, Endpoint, Oban, etc.)
|
||||
|
||||
# Add Broadway pipeline
|
||||
Towerops.Pipelines.AgentMetricsPipeline,
|
||||
]
|
||||
|
||||
opts = [strategy: :one_for_one, name: Towerops.Supervisor]
|
||||
Supervisor.start_link(children, opts)
|
||||
end
|
||||
end
|
||||
```
|
||||
|
||||
### 6. Router Updates
|
||||
|
||||
```elixir
|
||||
# lib/towerops_web/router.ex
|
||||
scope "/api/v1/agent", ToweropsWeb.API.V1 do
|
||||
pipe_through [:api, :api_agent_auth]
|
||||
|
||||
# Phase 1: Dual endpoints during migration
|
||||
post "/metrics", AgentController, :metrics_sync # Current
|
||||
post "/metrics/async", AgentController, :metrics_async # New
|
||||
|
||||
# Phase 3: After full migration
|
||||
# post "/metrics", AgentController, :metrics_async
|
||||
end
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Migration Path
|
||||
|
||||
### Phase 1: Dual Mode (Parallel Run)
|
||||
|
||||
**Duration**: 2-4 weeks
|
||||
**Goal**: Validate Broadway pipeline with real traffic
|
||||
|
||||
1. Deploy both endpoints (`/metrics` and `/metrics/async`)
|
||||
2. Update 10% of agents to use `/metrics/async`
|
||||
3. Monitor:
|
||||
- Queue depth
|
||||
- Processing latency
|
||||
- Error rates
|
||||
- Database performance
|
||||
|
||||
**Success Criteria**:
|
||||
- Zero data loss
|
||||
- <100ms p95 latency for queue insertion
|
||||
- <5s p95 latency for batch processing
|
||||
- No queue backlog growth
|
||||
|
||||
---
|
||||
|
||||
### Phase 2: Gradual Rollout
|
||||
|
||||
**Duration**: 2-4 weeks
|
||||
**Goal**: Full traffic migration
|
||||
|
||||
1. Increase to 25% of agents
|
||||
2. Monitor for 1 week
|
||||
3. Increase to 50% of agents
|
||||
4. Monitor for 1 week
|
||||
5. Increase to 100% of agents
|
||||
|
||||
**Rollback Plan**:
|
||||
- Keep sync endpoint active
|
||||
- Simple config change in agent to switch back
|
||||
- No data loss (queue persists messages)
|
||||
|
||||
---
|
||||
|
||||
### Phase 3: Deprecate Synchronous Endpoint
|
||||
|
||||
**Duration**: 1 week
|
||||
**Goal**: Clean up legacy code
|
||||
|
||||
1. Switch `/metrics` route to async handler
|
||||
2. Monitor for 1 week
|
||||
3. Remove `metrics_sync/2` function
|
||||
4. Update documentation
|
||||
|
||||
---
|
||||
|
||||
## Infrastructure Requirements
|
||||
|
||||
### PostgreSQL-backed (Phase 1)
|
||||
|
||||
**Database Schema**:
|
||||
```sql
|
||||
CREATE TABLE agent_metrics_queue (
|
||||
id BIGSERIAL PRIMARY KEY,
|
||||
payload JSONB NOT NULL,
|
||||
inserted_at TIMESTAMP NOT NULL DEFAULT NOW(),
|
||||
processed_at TIMESTAMP,
|
||||
retry_count INTEGER DEFAULT 0,
|
||||
error TEXT
|
||||
);
|
||||
|
||||
CREATE INDEX idx_agent_metrics_queue_unprocessed
|
||||
ON agent_metrics_queue (inserted_at)
|
||||
WHERE processed_at IS NULL;
|
||||
```
|
||||
|
||||
**No additional services required**
|
||||
|
||||
---
|
||||
|
||||
### RabbitMQ (Production)
|
||||
|
||||
**Development** (`docker-compose.yml`):
|
||||
```yaml
|
||||
services:
|
||||
rabbitmq:
|
||||
image: rabbitmq:3.13-management-alpine
|
||||
ports:
|
||||
- "5672:5672" # AMQP
|
||||
- "15672:15672" # Management UI
|
||||
environment:
|
||||
RABBITMQ_DEFAULT_USER: towerops
|
||||
RABBITMQ_DEFAULT_PASS: ${RABBITMQ_PASSWORD}
|
||||
volumes:
|
||||
- rabbitmq_data:/var/lib/rabbitmq
|
||||
|
||||
volumes:
|
||||
rabbitmq_data:
|
||||
```
|
||||
|
||||
**Production** (Kubernetes):
|
||||
```yaml
|
||||
# k8s/rabbitmq/helmrelease.yaml
|
||||
apiVersion: helm.toolkit.fluxcd.io/v2beta1
|
||||
kind: HelmRelease
|
||||
metadata:
|
||||
name: rabbitmq
|
||||
namespace: towerops
|
||||
spec:
|
||||
chart:
|
||||
spec:
|
||||
chart: rabbitmq
|
||||
version: 12.x.x
|
||||
sourceRef:
|
||||
kind: HelmRepository
|
||||
name: bitnami
|
||||
values:
|
||||
auth:
|
||||
username: towerops
|
||||
existingPasswordSecret: rabbitmq-password
|
||||
persistence:
|
||||
enabled: true
|
||||
size: 20Gi
|
||||
clustering:
|
||||
enabled: true
|
||||
replicaCount: 3
|
||||
metrics:
|
||||
enabled: true
|
||||
serviceMonitor:
|
||||
enabled: true
|
||||
```
|
||||
|
||||
**Secrets** (1Password → Kubernetes):
|
||||
```bash
|
||||
# Create secret from 1Password
|
||||
kubectl create secret generic rabbitmq-password \
|
||||
--from-literal=rabbitmq-password=$(op read "op://towerops/rabbitmq/password") \
|
||||
-n towerops
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Monitoring & Observability
|
||||
|
||||
### Telemetry Metrics
|
||||
|
||||
```elixir
|
||||
# lib/towerops_web/telemetry.ex
|
||||
defp periodic_measurements do
|
||||
[
|
||||
# Existing metrics...
|
||||
|
||||
# Broadway pipeline metrics
|
||||
{Broadway, :metrics, [Towerops.Pipelines.AgentMetricsPipeline]},
|
||||
|
||||
# Queue depth (RabbitMQ)
|
||||
{ToweropsWeb.Metrics, :queue_depth, ["agent_metrics"]},
|
||||
|
||||
# Processing rate
|
||||
{ToweropsWeb.Metrics, :processing_rate, []},
|
||||
]
|
||||
end
|
||||
```
|
||||
|
||||
### LiveDashboard Additions
|
||||
|
||||
Add to `/admin/dashboard`:
|
||||
- **Queue Depth** - Messages waiting to be processed
|
||||
- **Processing Rate** - Messages/second throughput
|
||||
- **Batch Sizes** - Average messages per batch
|
||||
- **Failed Messages** - Retry queue depth
|
||||
- **Latency** - p50/p95/p99 processing time
|
||||
|
||||
### Alerts
|
||||
|
||||
Add to monitoring system (Prometheus/Grafana):
|
||||
- Queue depth > 10,000 messages (backlog warning)
|
||||
- Processing rate < 100 msg/sec (pipeline degraded)
|
||||
- Failed message rate > 5% (data quality issue)
|
||||
- Consumer crashes (Broadway supervisor restarts)
|
||||
|
||||
---
|
||||
|
||||
## Testing Strategy
|
||||
|
||||
### Unit Tests
|
||||
|
||||
```elixir
|
||||
# test/towerops/pipelines/agent_metrics_pipeline_test.exs
|
||||
defmodule Towerops.Pipelines.AgentMetricsPipelineTest do
|
||||
use Towerops.DataCase
|
||||
|
||||
alias Broadway.Message
|
||||
alias Towerops.Pipelines.AgentMetricsPipeline
|
||||
|
||||
describe "handle_message/3" do
|
||||
test "parses valid metric JSON" do
|
||||
data = Jason.encode!(%{
|
||||
"equipment_id" => "uuid",
|
||||
"sensor_id" => "uuid",
|
||||
"value" => 42.5
|
||||
})
|
||||
|
||||
message = %Message{data: data}
|
||||
result = AgentMetricsPipeline.handle_message(:default, message, %{})
|
||||
|
||||
assert result.batcher == :default
|
||||
assert result.data["value"] == 42.5
|
||||
end
|
||||
end
|
||||
|
||||
describe "handle_batch/4" do
|
||||
test "inserts batch of metrics" do
|
||||
messages = [
|
||||
%Message{data: %{"equipment_id" => "uuid1", ...}},
|
||||
%Message{data: %{"equipment_id" => "uuid2", ...}}
|
||||
]
|
||||
|
||||
result = AgentMetricsPipeline.handle_batch(:default, messages, %{}, %{})
|
||||
|
||||
assert length(result) == 2
|
||||
assert Enum.all?(result, &match?(%Message{status: :ok}, &1))
|
||||
end
|
||||
end
|
||||
end
|
||||
```
|
||||
|
||||
### Integration Tests
|
||||
|
||||
```elixir
|
||||
# test/towerops_web/controllers/api/v1/agent_controller_test.exs
|
||||
describe "POST /api/v1/agent/metrics/async" do
|
||||
test "enqueues metrics and returns 202", %{conn: conn, agent: agent} do
|
||||
metrics = [%{
|
||||
"equipment_id" => equipment.id,
|
||||
"sensor_id" => sensor.id,
|
||||
"value" => 42.5,
|
||||
"timestamp" => DateTime.utc_now() |> DateTime.to_iso8601()
|
||||
}]
|
||||
|
||||
conn = post(conn, ~p"/api/v1/agent/metrics/async", %{"metrics" => metrics})
|
||||
|
||||
assert %{"status" => "accepted", "queued" => 1} = json_response(conn, 202)
|
||||
|
||||
# Verify message in queue
|
||||
assert_queue_length("agent_metrics", 1)
|
||||
end
|
||||
end
|
||||
```
|
||||
|
||||
### Load Tests
|
||||
|
||||
```elixir
|
||||
# test/load/agent_metrics_load_test.exs
|
||||
# Use :fuse or similar to simulate 500 concurrent agents
|
||||
defmodule Towerops.Load.AgentMetricsTest do
|
||||
use ExUnit.Case
|
||||
|
||||
@tag timeout: :infinity
|
||||
@tag :load_test
|
||||
test "handles 500 concurrent agent submissions" do
|
||||
agents = create_agents(500)
|
||||
|
||||
# Simulate all agents posting at once
|
||||
tasks = Enum.map(agents, fn agent ->
|
||||
Task.async(fn ->
|
||||
submit_metrics(agent, generate_metrics(10))
|
||||
end)
|
||||
end)
|
||||
|
||||
results = Task.await_many(tasks, 30_000)
|
||||
|
||||
# All should succeed
|
||||
assert Enum.all?(results, &match?({:ok, _}, &1))
|
||||
|
||||
# Verify queue processed everything
|
||||
wait_for_queue_empty("agent_metrics", timeout: 60_000)
|
||||
|
||||
# Verify all metrics in database
|
||||
assert Repo.aggregate(SensorReading, :count) == 5000
|
||||
end
|
||||
end
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Performance Tuning
|
||||
|
||||
### Database Optimization
|
||||
|
||||
**Batch Insert Settings**:
|
||||
```elixir
|
||||
# config/runtime.exs
|
||||
config :towerops, Towerops.Repo,
|
||||
# Increase connection pool for Broadway workers
|
||||
pool_size: 20, # Up from 10
|
||||
|
||||
# Optimize for batch inserts
|
||||
prepare: :unnamed,
|
||||
timeout: 30_000
|
||||
```
|
||||
|
||||
**TimescaleDB Tuning**:
|
||||
```sql
|
||||
-- Increase batch size for continuous aggregates
|
||||
ALTER MATERIALIZED VIEW sensor_readings_1h SET (
|
||||
timescaledb.materialized_only = true,
|
||||
timescaledb.compress_after = '7 days'
|
||||
);
|
||||
|
||||
-- Add indexes for common queries
|
||||
CREATE INDEX CONCURRENTLY idx_sensor_readings_equipment_timestamp
|
||||
ON sensor_readings (equipment_id, timestamp DESC);
|
||||
```
|
||||
|
||||
### Broadway Tuning
|
||||
|
||||
```elixir
|
||||
# Processors: CPU-bound (parsing, validation)
|
||||
# Start with: processors_concurrency = num_cores * 2
|
||||
processors: [default: [concurrency: System.schedulers_online() * 2]]
|
||||
|
||||
# Batchers: I/O-bound (database writes)
|
||||
# Start with: batch_size = 1000, tune based on DB performance
|
||||
batchers: [
|
||||
default: [
|
||||
batch_size: 1000, # Increase if DB can handle larger batches
|
||||
batch_timeout: 2_000, # Decrease for lower latency
|
||||
concurrency: 10 # Increase if batchers become bottleneck
|
||||
]
|
||||
]
|
||||
```
|
||||
|
||||
### RabbitMQ Tuning
|
||||
|
||||
```elixir
|
||||
# Prefetch: How many unacked messages per consumer
|
||||
# Higher = better throughput, lower = better distribution
|
||||
connection: [
|
||||
prefetch_count: 100 # Start with 100, tune based on message size
|
||||
]
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Cost Analysis
|
||||
|
||||
### Infrastructure Costs (Estimated)
|
||||
|
||||
**PostgreSQL-backed**:
|
||||
- $0/month (uses existing database)
|
||||
- Adds ~10-20% CPU load to DB server
|
||||
|
||||
**RabbitMQ (Self-hosted Kubernetes)**:
|
||||
- 3 nodes × 2 vCPU × 4 GB RAM = ~$120/month
|
||||
- 20 GB persistent storage = ~$10/month
|
||||
- **Total**: ~$130/month
|
||||
|
||||
**AWS SQS**:
|
||||
- 1M requests = $0.40
|
||||
- 500 agents × 1 req/min × 60 min × 24 hrs × 30 days = 21.6M requests/month
|
||||
- **Total**: ~$8.64/month (plus data transfer costs)
|
||||
|
||||
### Development Costs
|
||||
|
||||
- **Phase 1** (PostgreSQL-backed): 1 week development + 1 week testing
|
||||
- **Phase 2** (RabbitMQ migration): 1 week development + 1 week testing
|
||||
- **Phase 3** (Cleanup): 2-3 days
|
||||
|
||||
**Total**: 4-5 weeks engineering time
|
||||
|
||||
---
|
||||
|
||||
## Decision Points
|
||||
|
||||
### When to Implement?
|
||||
|
||||
Implement Broadway when you hit **any** of these thresholds:
|
||||
|
||||
1. **Agent Count**: 100+ agents (current: <10)
|
||||
2. **API Latency**: p95 > 500ms for `/api/v1/agent/metrics`
|
||||
3. **Timeout Rate**: >1% of agent requests timing out
|
||||
4. **Database Load**: DB CPU > 70% during agent polling windows
|
||||
5. **Business Need**: SLA requires <100ms API response time
|
||||
|
||||
### Which Message Queue?
|
||||
|
||||
| Criteria | PostgreSQL | RabbitMQ | AWS SQS |
|
||||
|----------|-----------|----------|---------|
|
||||
| **Agents** | <100 | 100-1000 | Any |
|
||||
| **Throughput** | <1k msg/sec | <100k msg/sec | Unlimited |
|
||||
| **Infrastructure** | None | Kubernetes | AWS only |
|
||||
| **Ops Complexity** | Low | Medium | Low |
|
||||
| **Cost** | $0 | ~$130/mo | ~$9/mo |
|
||||
|
||||
**Recommended Path**:
|
||||
1. Start with **PostgreSQL-backed** (proof of concept)
|
||||
2. Migrate to **RabbitMQ** when hitting 100 agents
|
||||
3. Consider **SQS** only if already on AWS
|
||||
|
||||
---
|
||||
|
||||
## References
|
||||
|
||||
- [Broadway Documentation](https://hexdocs.pm/broadway)
|
||||
- [Building Custom Producers](https://samuelmullen.com/articles/building-custom-producers-with-elixirs-broadway)
|
||||
- [Broadway RabbitMQ](https://hexdocs.pm/broadway_rabbitmq)
|
||||
- [OffBroadway SQS](https://hexdocs.pm/off_broadway_sqs)
|
||||
- [Batch Insert Performance](https://hexdocs.pm/ecto/Ecto.Repo.html#c:insert_all/3)
|
||||
|
||||
---
|
||||
|
||||
## Related Documents
|
||||
|
||||
- `CLAUDE.md` - Project-specific development guidelines
|
||||
- `AGENTS.md` - Elixir/Phoenix/LiveView patterns
|
||||
- `docs/API.md` - Agent API documentation
|
||||
|
|
@ -1,210 +0,0 @@
|
|||
# Exception Handling Strategy
|
||||
|
||||
## Overview
|
||||
|
||||
Towerops implements the `Plug.Exception` protocol for expected client errors to reduce noise in error tracking systems and provide clean HTTP responses for invalid requests.
|
||||
|
||||
## Problem Statement
|
||||
|
||||
Production Phoenix applications receive many "exceptions" that aren't actually application failures:
|
||||
|
||||
1. **API clients** sending incorrect `Accept` headers (triggers `Phoenix.NotAcceptableError`)
|
||||
2. **Mobile apps** with stale CSRF tokens after backgrounding (triggers `InvalidCSRFTokenError`)
|
||||
3. **Automation tools** (Terraform, scripts) with malformed requests
|
||||
|
||||
These are legitimate **client errors (400-level)**, not server failures (500-level). Without proper handling:
|
||||
|
||||
- Exception tracking services (Sentry, Rollbar, etc.) send alerts for every bad request
|
||||
- Logs are cluttered with stack traces for expected behavior
|
||||
- Difficult to identify genuine application bugs in the noise
|
||||
|
||||
## Solution
|
||||
|
||||
Implement `Plug.Exception` protocol for expected exceptions to convert them into clean HTTP 400 responses.
|
||||
|
||||
### Implementation
|
||||
|
||||
Located in: `lib/towerops_web/plug_exceptions.ex`
|
||||
|
||||
```elixir
|
||||
defimpl Plug.Exception, for: Phoenix.NotAcceptableError do
|
||||
def status(_exception), do: 400
|
||||
def actions(_exception), do: []
|
||||
end
|
||||
|
||||
defimpl Plug.Exception, for: Plug.CSRFProtection.InvalidCSRFTokenError do
|
||||
def status(_exception), do: 400
|
||||
def actions(_exception), do: []
|
||||
end
|
||||
```
|
||||
|
||||
### How It Works
|
||||
|
||||
1. **Before**: Exception raised → 500 error → stack trace logged → alert sent
|
||||
2. **After**: Exception raised → protocol converts to 400 → debug log only → no alert
|
||||
|
||||
Phoenix checks if an exception implements `Plug.Exception` protocol:
|
||||
- If yes: calls `status/1` to get HTTP status code, returns that status
|
||||
- If no: treats as 500 Internal Server Error, logs stack trace
|
||||
|
||||
## Covered Exception Types
|
||||
|
||||
### Phoenix.NotAcceptableError
|
||||
|
||||
**Triggered when**: Client sends `Accept` header that doesn't match controller format.
|
||||
|
||||
**Common scenarios**:
|
||||
- API client requesting `Accept: application/xml` when only JSON is supported
|
||||
- Automation tools with default headers hitting JSON endpoints
|
||||
- Browser requests to API-only endpoints
|
||||
|
||||
**Example**:
|
||||
```bash
|
||||
curl -H "Accept: application/xml" https://towerops.net/api/v1/sites
|
||||
# Returns: 400 Bad Request (not 500)
|
||||
```
|
||||
|
||||
### Plug.CSRFProtection.InvalidCSRFTokenError
|
||||
|
||||
**Triggered when**: CSRF token is missing, invalid, or expired.
|
||||
|
||||
**Common scenarios**:
|
||||
- Mobile app resumed after hours of inactivity (token expired)
|
||||
- User left browser tab open overnight (session invalidated)
|
||||
- Legitimate request replayed after logout/login cycle
|
||||
|
||||
**Example**:
|
||||
- User opens form, leaves for lunch, returns and submits → 400 (not 500)
|
||||
- iOS app backgrounded for hours, user returns and taps button → 400
|
||||
|
||||
## Monitoring & Security
|
||||
|
||||
### Debug Logging
|
||||
|
||||
Both exception types log at debug level before converting:
|
||||
|
||||
```elixir
|
||||
Logger.debug("Converting Phoenix.NotAcceptableError to 400: #{inspect(exception)}")
|
||||
```
|
||||
|
||||
This allows:
|
||||
- Visibility in development (`mix phx.server` shows debug logs)
|
||||
- Optional monitoring in production (enable debug logs temporarily)
|
||||
- No production alerts for expected behavior
|
||||
|
||||
### Security Considerations
|
||||
|
||||
**CSRF Protection Still Active**: Converting to 400 doesn't disable CSRF protection:
|
||||
- Invalid tokens still rejected (request fails)
|
||||
- User sees "Bad Request" instead of generic error page
|
||||
- Audit logs still capture failed requests
|
||||
|
||||
**Attack Detection**: Excessive CSRF errors may indicate:
|
||||
- Automated CSRF attack attempts
|
||||
- Client implementation bugs
|
||||
- Session fixation attempts
|
||||
|
||||
**Recommended**: Set up monitoring for 400 error rate spikes on protected endpoints.
|
||||
|
||||
### What We're NOT Doing
|
||||
|
||||
This pattern should **only** apply to expected client errors:
|
||||
|
||||
❌ **Don't convert**:
|
||||
- Database connection errors (500)
|
||||
- Ecto query errors (500)
|
||||
- Permission violations (403, handled separately)
|
||||
- Authentication failures (401, handled separately)
|
||||
- Not found errors (404, handled separately)
|
||||
|
||||
✅ **Do convert**:
|
||||
- Malformed request format (400)
|
||||
- Invalid content negotiation (400)
|
||||
- Stale CSRF tokens (400)
|
||||
|
||||
## Testing
|
||||
|
||||
Tests verify both the protocol implementation and actual HTTP behavior:
|
||||
|
||||
```elixir
|
||||
# Protocol implementation
|
||||
test "implements status/1 callback" do
|
||||
exception = %Phoenix.NotAcceptableError{}
|
||||
assert Plug.Exception.status(exception) == 400
|
||||
end
|
||||
|
||||
# Actual HTTP behavior
|
||||
test "returns 400 for invalid Accept header" do
|
||||
conn =
|
||||
build_conn()
|
||||
|> put_req_header("accept", "application/invalid")
|
||||
|> get("/api/v1/sites")
|
||||
|
||||
assert conn.status == 400
|
||||
end
|
||||
```
|
||||
|
||||
See: `test/towerops_web/plug_exceptions_test.exs`
|
||||
|
||||
## Adding New Exception Types
|
||||
|
||||
When adding new exception types, follow this checklist:
|
||||
|
||||
1. **Verify it's a client error**:
|
||||
- Is this caused by invalid user input or client behavior?
|
||||
- Would a well-behaved client avoid this error?
|
||||
- Is this a 400-level status code scenario?
|
||||
|
||||
2. **Add protocol implementation** in `plug_exceptions.ex`:
|
||||
```elixir
|
||||
defimpl Plug.Exception, for: YourException do
|
||||
def status(_exception), do: 400
|
||||
def actions(_exception), do: []
|
||||
end
|
||||
```
|
||||
|
||||
3. **Add tests** in `plug_exceptions_test.exs`:
|
||||
- Test protocol callbacks (`status/1`, `actions/1`)
|
||||
- Test actual HTTP behavior (integration test)
|
||||
|
||||
4. **Update documentation**:
|
||||
- Add to "Covered Exception Types" section above
|
||||
- Document common scenarios that trigger it
|
||||
- Add example request/response
|
||||
|
||||
5. **Monitor in production**:
|
||||
- Watch error rates for first week after deployment
|
||||
- Verify no legitimate errors are being masked
|
||||
- Adjust if needed
|
||||
|
||||
## Production Rollout
|
||||
|
||||
When deploying this pattern:
|
||||
|
||||
1. **Before deployment**:
|
||||
- Review exception tracking service (Sentry, Rollbar, etc.)
|
||||
- Note baseline error rates for each exception type
|
||||
- Set up 400 status code monitoring (separate from alerts)
|
||||
|
||||
2. **After deployment**:
|
||||
- Verify exception alerts decreased for covered types
|
||||
- Check 400 error rates in metrics (should replace 500s)
|
||||
- Spot-check logs to ensure legitimate errors still visible
|
||||
|
||||
3. **Long-term**:
|
||||
- Review 400 error patterns quarterly
|
||||
- Consider adding new exception types if patterns emerge
|
||||
- Remove if causing issues (easily reversible)
|
||||
|
||||
## References
|
||||
|
||||
- **Original Article**: [Handle Phoenix Exceptions Gracefully](https://peterullrich.com/handle-phoenix-exceptions-gracefully)
|
||||
- **Plug.Exception Protocol**: https://hexdocs.pm/plug/Plug.Exception.html
|
||||
- **Phoenix Error Handling**: https://hexdocs.pm/phoenix/errors.html
|
||||
|
||||
## Maintenance Log
|
||||
|
||||
| Date | Change | Reason |
|
||||
|------|--------|--------|
|
||||
| 2026-02-04 | Initial implementation | Reduce error tracking noise from API clients and stale CSRF tokens |
|
||||
|
||||
|
|
@ -1,419 +0,0 @@
|
|||
# GitLab Runner with Nix Support
|
||||
|
||||
This guide explains how to set up a GitLab Runner with Nix support for building towerops Docker images using Nix flakes.
|
||||
|
||||
## Prerequisites
|
||||
|
||||
- A server with Nix installed (can be NixOS or any Linux with Nix package manager)
|
||||
- GitLab Runner installed
|
||||
- Docker installed (for loading and pushing images)
|
||||
- Network access to GitLab and Docker registries
|
||||
|
||||
## Option 1: NixOS GitLab Runner (Recommended)
|
||||
|
||||
If you're running NixOS, this is the cleanest approach.
|
||||
|
||||
### 1. Configure GitLab Runner in NixOS
|
||||
|
||||
Add to `/etc/nixos/configuration.nix`:
|
||||
|
||||
```nix
|
||||
{ config, pkgs, ... }:
|
||||
|
||||
{
|
||||
# Enable Nix flakes
|
||||
nix.settings.experimental-features = [ "nix-command" "flakes" ];
|
||||
|
||||
# Install Docker
|
||||
virtualisation.docker.enable = true;
|
||||
|
||||
# Configure gitlab-runner user and group
|
||||
users.users.gitlab-runner = {
|
||||
isSystemUser = true;
|
||||
group = "gitlab-runner";
|
||||
extraGroups = [ "docker" ];
|
||||
};
|
||||
|
||||
users.groups.gitlab-runner = {};
|
||||
|
||||
# Configure GitLab Runner
|
||||
services.gitlab-runner = {
|
||||
enable = true;
|
||||
services = {
|
||||
# Nix builder
|
||||
nix-builder = {
|
||||
registrationConfigFile = "/etc/gitlab-runner/nix-builder-registration";
|
||||
dockerImage = "nixos/nix:latest";
|
||||
dockerPrivileged = true; # Required for docker-in-docker
|
||||
dockerVolumes = [
|
||||
"/nix/store:/nix/store:ro"
|
||||
"/nix/var/nix/db:/nix/var/nix/db:ro"
|
||||
"/nix/var/nix/daemon-socket:/nix/var/nix/daemon-socket:ro"
|
||||
"/var/run/docker.sock:/var/run/docker.sock" # For docker load/push
|
||||
];
|
||||
tagList = [ "nix" ];
|
||||
};
|
||||
};
|
||||
};
|
||||
}
|
||||
```
|
||||
|
||||
### 2. Create Registration Config
|
||||
|
||||
Create `/etc/gitlab-runner/nix-builder-registration`:
|
||||
|
||||
```toml
|
||||
[[runners]]
|
||||
url = "https://gitlab.com/"
|
||||
token = "YOUR_RUNNER_REGISTRATION_TOKEN"
|
||||
executor = "docker"
|
||||
```
|
||||
|
||||
**Getting the registration token**:
|
||||
|
||||
#### New Token Workflow (Recommended - GitLab 16.0+):
|
||||
|
||||
1. Go to: **Settings → CI/CD → Runners**
|
||||
2. Click: **New project runner**
|
||||
3. Configure runner settings:
|
||||
- Tags: `nix`
|
||||
- Run untagged jobs: **Uncheck**
|
||||
- Description: "Nix Builder"
|
||||
4. Click **Create runner**
|
||||
5. Copy the token (starts with `glrt-`)
|
||||
|
||||
Use simplified registration command:
|
||||
|
||||
```bash
|
||||
sudo gitlab-runner register \
|
||||
--url https://gitlab.com/ \
|
||||
--token glrt-YOUR_TOKEN_HERE \
|
||||
--executor docker \
|
||||
--docker-image nixos/nix:latest \
|
||||
--docker-privileged \
|
||||
--docker-volumes /nix/store:/nix/store:ro \
|
||||
--docker-volumes /nix/var/nix/db:/nix/var/nix/db:ro \
|
||||
--docker-volumes /var/run/docker.sock:/var/run/docker.sock
|
||||
```
|
||||
|
||||
**Important**: With new tokens, tags are configured in GitLab UI, not in the registration command.
|
||||
|
||||
#### Legacy Token Workflow (GitLab <16.0):
|
||||
|
||||
Get token from: **Settings → CI/CD → Runners → Project runners → Registration token**
|
||||
|
||||
Registration config format is the same as above.
|
||||
|
||||
### 3. Apply Configuration
|
||||
|
||||
```bash
|
||||
sudo nixos-rebuild switch
|
||||
```
|
||||
|
||||
This will:
|
||||
- Enable Nix flakes
|
||||
- Install and start Docker
|
||||
- Create gitlab-runner user and group
|
||||
- Configure and start GitLab Runner service
|
||||
- Add gitlab-runner to docker group
|
||||
|
||||
### 4. Verify Setup
|
||||
|
||||
```bash
|
||||
# Check services are running
|
||||
sudo systemctl status gitlab-runner
|
||||
sudo systemctl status docker
|
||||
|
||||
# Verify gitlab-runner is in docker group
|
||||
id gitlab-runner
|
||||
# Should show: groups=... docker ...
|
||||
|
||||
# Check runner registration
|
||||
sudo gitlab-runner list
|
||||
```
|
||||
|
||||
## Option 2: Standard Linux with Nix
|
||||
|
||||
If you're using a standard Linux distribution with Nix installed:
|
||||
|
||||
### 1. Install Prerequisites
|
||||
|
||||
```bash
|
||||
# Install Nix (if not already installed)
|
||||
curl -L https://nixos.org/nix/install | sh -s -- --daemon
|
||||
|
||||
# Enable flakes
|
||||
mkdir -p ~/.config/nix
|
||||
echo "experimental-features = nix-command flakes" >> ~/.config/nix/nix.conf
|
||||
|
||||
# Install Docker
|
||||
# (distribution-specific - see Docker docs)
|
||||
|
||||
# Install GitLab Runner
|
||||
curl -L "https://packages.gitlab.com/install/repositories/runner/gitlab-runner/script.deb.sh" | sudo bash
|
||||
sudo apt-get install gitlab-runner
|
||||
```
|
||||
|
||||
### 2. Register Runner
|
||||
|
||||
**With new GitLab tokens (16.0+)**:
|
||||
|
||||
```bash
|
||||
sudo gitlab-runner register \
|
||||
--url https://gitlab.com/ \
|
||||
--token glrt-YOUR_TOKEN_HERE \
|
||||
--executor docker \
|
||||
--docker-image nixos/nix:latest \
|
||||
--docker-privileged \
|
||||
--docker-volumes /nix/store:/nix/store:ro \
|
||||
--docker-volumes /nix/var/nix/db:/nix/var/nix/db:ro \
|
||||
--docker-volumes /var/run/docker.sock:/var/run/docker.sock
|
||||
```
|
||||
|
||||
Then configure tags in GitLab UI: **Settings → CI/CD → Runners → Edit → Add tag: `nix`**
|
||||
|
||||
**With legacy tokens (<16.0)**:
|
||||
|
||||
```bash
|
||||
sudo gitlab-runner register \
|
||||
--url https://gitlab.com/ \
|
||||
--token YOUR_REGISTRATION_TOKEN \
|
||||
--executor docker \
|
||||
--docker-image nixos/nix:latest \
|
||||
--docker-privileged \
|
||||
--docker-volumes /nix/store:/nix/store:ro \
|
||||
--docker-volumes /nix/var/nix/db:/nix/var/nix/db:ro \
|
||||
--docker-volumes /var/run/docker.sock:/var/run/docker.sock \
|
||||
--tag-list nix \
|
||||
--run-untagged=false
|
||||
```
|
||||
|
||||
### 3. Add gitlab-runner to Docker Group
|
||||
|
||||
```bash
|
||||
sudo usermod -aG docker gitlab-runner
|
||||
sudo systemctl restart gitlab-runner
|
||||
```
|
||||
|
||||
## Setting Up Cachix (Optional but Recommended)
|
||||
|
||||
Cachix provides binary caching to speed up builds dramatically.
|
||||
|
||||
### 1. Create Cachix Account and Cache
|
||||
|
||||
```bash
|
||||
# Install cachix
|
||||
nix-env -iA cachix -f https://cachix.org/api/v1/install
|
||||
|
||||
# Login to cachix
|
||||
cachix authtoken
|
||||
|
||||
# Create cache
|
||||
cachix create towerops
|
||||
|
||||
# Generate keypair
|
||||
cachix generate-keypair towerops
|
||||
```
|
||||
|
||||
### 2. Get Public Key
|
||||
|
||||
```bash
|
||||
cachix get towerops
|
||||
```
|
||||
|
||||
This will output something like:
|
||||
```
|
||||
towerops.cachix.org-1:AbCdEfGhIjKlMnOpQrStUvWxYz1234567890ABCDEFG=
|
||||
```
|
||||
|
||||
### 3. Update Configuration
|
||||
|
||||
**In flake.nix**, replace the placeholder:
|
||||
|
||||
```nix
|
||||
extra-trusted-public-keys = [
|
||||
"cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
|
||||
"towerops.cachix.org-1:YOUR_ACTUAL_PUBLIC_KEY_HERE" # Replace this
|
||||
];
|
||||
```
|
||||
|
||||
**In .gitlab-ci.yml**, replace:
|
||||
|
||||
```yaml
|
||||
trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= towerops.cachix.org-1:YOUR_ACTUAL_PUBLIC_KEY_HERE
|
||||
```
|
||||
|
||||
### 4. Add Auth Token to GitLab
|
||||
|
||||
Get your auth token:
|
||||
|
||||
```bash
|
||||
cachix authtoken
|
||||
```
|
||||
|
||||
Add to GitLab:
|
||||
1. Go to: Project → Settings → CI/CD → Variables
|
||||
2. Add variable:
|
||||
- **Key**: `CACHIX_AUTH_TOKEN`
|
||||
- **Value**: (paste token from above)
|
||||
- **Type**: Variable
|
||||
- **Protected**: Yes
|
||||
- **Masked**: Yes
|
||||
- **Expand variable reference**: No
|
||||
|
||||
## Verifying the Setup
|
||||
|
||||
### Test Runner Connection
|
||||
|
||||
Check that the runner is connected:
|
||||
|
||||
```bash
|
||||
# On the runner host
|
||||
sudo gitlab-runner verify
|
||||
|
||||
# In GitLab UI
|
||||
# Go to: Settings → CI/CD → Runners
|
||||
# You should see your runner with the "nix" tag listed
|
||||
```
|
||||
|
||||
### Test Build
|
||||
|
||||
Push a commit to the `main` branch and watch the pipeline:
|
||||
|
||||
1. Go to: CI/CD → Pipelines
|
||||
2. Click on the latest pipeline
|
||||
3. Watch the build job
|
||||
|
||||
Expected output:
|
||||
```
|
||||
Building Docker image with Nix...
|
||||
[Building all dependencies...]
|
||||
Creating layer 1 from paths: [...]
|
||||
Creating layer 2 from paths: [...]
|
||||
...
|
||||
Done.
|
||||
Loading Docker image...
|
||||
Pushing to GitLab Container Registry...
|
||||
```
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
### NixOS: User configuration errors
|
||||
|
||||
**Error**: `users.users.gitlab-runner.isSystemUser` must be set
|
||||
|
||||
**Fix**: Add user configuration to `/etc/nixos/configuration.nix`:
|
||||
|
||||
```nix
|
||||
users.users.gitlab-runner = {
|
||||
isSystemUser = true;
|
||||
group = "gitlab-runner";
|
||||
extraGroups = [ "docker" ];
|
||||
};
|
||||
|
||||
users.groups.gitlab-runner = {};
|
||||
```
|
||||
|
||||
### Runner registration with new tokens fails
|
||||
|
||||
**Error**: `Runner configuration other than name and executor... is reserved`
|
||||
|
||||
**Fix**: With new GitLab tokens (`glrt-*`), you cannot specify `--tag-list`, `--run-untagged`, etc. in the registration command. Configure these in GitLab UI instead:
|
||||
|
||||
1. Register with minimal command (without `--tag-list`, `--run-untagged`)
|
||||
2. Go to GitLab UI: **Settings → CI/CD → Runners → Edit**
|
||||
3. Add tags and configure settings there
|
||||
|
||||
### Runner shows offline in GitLab
|
||||
|
||||
**Check runner status**:
|
||||
```bash
|
||||
sudo gitlab-runner status
|
||||
sudo systemctl status gitlab-runner
|
||||
```
|
||||
|
||||
**Check logs**:
|
||||
```bash
|
||||
sudo journalctl -u gitlab-runner -f
|
||||
```
|
||||
|
||||
### Build fails with "experimental feature 'flakes' is not enabled"
|
||||
|
||||
**Fix**: Ensure NIX_CONFIG in `.gitlab-ci.yml` includes experimental features:
|
||||
```yaml
|
||||
NIX_CONFIG: |
|
||||
experimental-features = nix-command flakes
|
||||
```
|
||||
|
||||
### Docker load fails with permission denied
|
||||
|
||||
**Fix**: Ensure gitlab-runner user is in docker group:
|
||||
```bash
|
||||
sudo usermod -aG docker gitlab-runner
|
||||
sudo systemctl restart gitlab-runner
|
||||
```
|
||||
|
||||
### Cachix push fails
|
||||
|
||||
**Check auth token**:
|
||||
- Verify `CACHIX_AUTH_TOKEN` is set in GitLab CI/CD variables
|
||||
- Verify token is correct: run `cachix authtoken` locally
|
||||
|
||||
**Check network**:
|
||||
- Ensure runner can reach cachix.org
|
||||
- Check firewall rules
|
||||
|
||||
### Build is very slow
|
||||
|
||||
**Without Cachix**: First build will compile everything from source (~20-30 minutes)
|
||||
|
||||
**With Cachix**: Subsequent builds should be much faster (~2-5 minutes) as dependencies are cached
|
||||
|
||||
**Improve speed**:
|
||||
1. Set up Cachix (see above)
|
||||
2. Use a more powerful runner instance
|
||||
3. Increase runner's `concurrent` setting in `/etc/gitlab-runner/config.toml`
|
||||
|
||||
## Rollback to Docker Builds
|
||||
|
||||
If you need to roll back to the old Docker-based builds:
|
||||
|
||||
```bash
|
||||
# The old config is in git history
|
||||
git log --all -- .gitlab-ci.yml
|
||||
|
||||
# Restore the old version (find the commit hash from log)
|
||||
git show COMMIT_HASH:.gitlab-ci.yml > .gitlab-ci.yml
|
||||
|
||||
# Commit and push
|
||||
git add .gitlab-ci.yml
|
||||
git commit -m "Revert to Docker-based builds"
|
||||
git push
|
||||
```
|
||||
|
||||
The old Dockerfile is still present at `k8s/Dockerfile` and can be used.
|
||||
|
||||
## Performance Comparison
|
||||
|
||||
### Docker-based builds (before Nix):
|
||||
- First build: ~15 minutes
|
||||
- Incremental: ~10 minutes (with layer caching)
|
||||
- Image size: ~500 MB
|
||||
|
||||
### Nix-based builds (with Cachix):
|
||||
- First build: ~25 minutes (everything from source)
|
||||
- Subsequent builds: ~2-5 minutes (binary cache hits)
|
||||
- Image size: ~507 MB compressed (~960 MB uncompressed)
|
||||
|
||||
### Benefits of Nix:
|
||||
- **Reproducible**: Identical builds across all environments
|
||||
- **Cacheable**: Binary caching eliminates redundant compilation
|
||||
- **Declarative**: All dependencies pinned in flake.lock
|
||||
- **Fast incremental builds**: Only changed layers rebuild
|
||||
|
||||
## Additional Resources
|
||||
|
||||
- [Nix Flakes Manual](https://nixos.org/manual/nix/stable/command-ref/new-cli/nix3-flake.html)
|
||||
- [GitLab Runner Docker Executor](https://docs.gitlab.com/runner/executors/docker.html)
|
||||
- [Cachix Documentation](https://docs.cachix.org/)
|
||||
- [NixOS GitLab Runner](https://nixos.wiki/wiki/Gitlab_runner)
|
||||
|
|
@ -1,954 +0,0 @@
|
|||
# Firmware Version Tracking System Design
|
||||
|
||||
**Date:** 2026-02-01
|
||||
**Status:** Draft
|
||||
**Target:** MikroTik initially, extensible to all vendors
|
||||
|
||||
## Overview
|
||||
|
||||
Implement a firmware version tracking system that:
|
||||
1. Fetches latest stable firmware versions from vendor sources (MikroTik RSS feed initially)
|
||||
2. Tracks firmware version changes over time with audit logging
|
||||
3. Displays update indicators on device detail pages with download links
|
||||
4. Supports multiple vendors through polymorphic design
|
||||
|
||||
## Database Schema
|
||||
|
||||
### New Tables
|
||||
|
||||
#### 1. `firmware_releases` - Latest available firmware versions
|
||||
|
||||
Stores the most recent stable firmware version for each vendor/product line.
|
||||
|
||||
```elixir
|
||||
create table(:firmware_releases, primary_key: false) do
|
||||
add :id, :binary_id, primary_key: true
|
||||
add :vendor, :string, null: false # "mikrotik", "cisco", "ubiquiti"
|
||||
add :product_line, :string # "routeros", "ios-xe", "unifi", null for single product vendors
|
||||
add :version, :string, null: false # "7.14.1", "17.9.4a"
|
||||
add :release_date, :date # When this version was released
|
||||
add :download_url, :string # Official download page URL
|
||||
add :changelog_url, :string # Release notes URL
|
||||
add :metadata, :map, default: %{} # JSON: RSS item data, API response, etc.
|
||||
add :fetched_at, :utc_datetime, null: false # When we last fetched this
|
||||
|
||||
timestamps(type: :utc_datetime)
|
||||
end
|
||||
|
||||
# Unique constraint: one current version per vendor/product_line
|
||||
create unique_index(:firmware_releases, [:vendor, :product_line])
|
||||
```
|
||||
|
||||
**Design Notes:**
|
||||
- `vendor` is lowercase string for consistency ("mikrotik", not "MikroTik")
|
||||
- `product_line` allows vendors with multiple firmware branches (Cisco IOS vs IOS-XE, MikroTik RouterOS vs SwOS)
|
||||
- `metadata` stores raw source data for debugging and future feature extraction
|
||||
- Single record per vendor/product_line, updated in place when new version detected
|
||||
|
||||
#### 2. `device_firmware_history` - Version change audit trail
|
||||
|
||||
Tracks when devices change firmware versions.
|
||||
|
||||
```elixir
|
||||
create table(:device_firmware_history, primary_key: false) do
|
||||
add :id, :binary_id, primary_key: true
|
||||
add :snmp_device_id, references(:snmp_devices, type: :binary_id, on_delete: :delete_all), null: false
|
||||
add :old_version, :string # Previous version (null for first discovery)
|
||||
add :new_version, :string, null: false # New version detected
|
||||
add :detected_at, :utc_datetime, null: false # When the change was detected
|
||||
add :detection_method, :string # "discovery", "polling", "manual"
|
||||
|
||||
timestamps(type: :utc_datetime, updated_at: false)
|
||||
end
|
||||
|
||||
create index(:device_firmware_history, [:snmp_device_id, :detected_at])
|
||||
create index(:device_firmware_history, [:detected_at])
|
||||
```
|
||||
|
||||
**Design Notes:**
|
||||
- Links to `snmp_devices` (not `devices`) since firmware is SNMP-discovered data
|
||||
- `old_version` nullable for initial discovery (no previous version)
|
||||
- `detected_at` separate from `inserted_at` to record actual change time vs when we logged it
|
||||
- Index on `snmp_device_id + detected_at` for efficient device history queries
|
||||
- Cascading delete: history removed when SNMP device deleted
|
||||
|
||||
### Schema Modifications
|
||||
|
||||
No changes to existing `snmp_devices` table needed - the existing `firmware_version` field remains as the "current version" source of truth.
|
||||
|
||||
## RSS Fetching Implementation
|
||||
|
||||
### Oban Worker: `FirmwareVersionFetcherWorker`
|
||||
|
||||
**Location:** `lib/towerops/workers/firmware_version_fetcher_worker.ex`
|
||||
|
||||
```elixir
|
||||
defmodule Towerops.Workers.FirmwareVersionFetcherWorker do
|
||||
use Oban.Worker, queue: :maintenance, max_attempts: 3
|
||||
require Logger
|
||||
|
||||
@impl Oban.Worker
|
||||
def perform(%Oban.Job{}) do
|
||||
Logger.info("Starting firmware version fetch")
|
||||
|
||||
# Fetch each vendor's latest firmware
|
||||
results = [
|
||||
fetch_mikrotik_routeros(),
|
||||
# Future: fetch_cisco_ios(),
|
||||
# Future: fetch_ubiquiti_unifi()
|
||||
]
|
||||
|
||||
case Enum.all?(results, &match?(:ok, &1)) do
|
||||
true -> :ok
|
||||
false -> {:error, "One or more firmware fetches failed"}
|
||||
end
|
||||
end
|
||||
|
||||
defp fetch_mikrotik_routeros do
|
||||
# Implementation details below
|
||||
end
|
||||
end
|
||||
```
|
||||
|
||||
**Cron Schedule:** Daily at 2:00 AM
|
||||
|
||||
Add to `config/dev.exs` and `config/runtime.exs` (production):
|
||||
|
||||
```elixir
|
||||
config :towerops, Oban,
|
||||
plugins: [
|
||||
{Oban.Plugins.Cron,
|
||||
crontab: [
|
||||
# ... existing cron jobs ...
|
||||
{"0 2 * * *", Towerops.Workers.FirmwareVersionFetcherWorker}
|
||||
]}
|
||||
]
|
||||
```
|
||||
|
||||
### MikroTik RSS Parsing
|
||||
|
||||
**RSS URL:** `https://cdn.mikrotik.com/routeros/latest-stable.rss`
|
||||
|
||||
**Sample RSS Structure:**
|
||||
```xml
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<rss version="2.0">
|
||||
<channel>
|
||||
<title>RouterOS latest stable version</title>
|
||||
<item>
|
||||
<title>7.14.1</title>
|
||||
<link>https://mikrotik.com/download</link>
|
||||
<pubDate>Wed, 15 Jan 2025 12:00:00 +0000</pubDate>
|
||||
<description>RouterOS 7.14.1 stable release</description>
|
||||
</item>
|
||||
</channel>
|
||||
</rss>
|
||||
```
|
||||
|
||||
**Parsing Implementation:**
|
||||
|
||||
```elixir
|
||||
defp fetch_mikrotik_routeros do
|
||||
url = "https://cdn.mikrotik.com/routeros/latest-stable.rss"
|
||||
|
||||
with {:ok, %{status: 200, body: body}} <- Req.get(url),
|
||||
{:ok, parsed} <- parse_mikrotik_rss(body),
|
||||
{:ok, _release} <- upsert_firmware_release(parsed) do
|
||||
Logger.info("Successfully fetched MikroTik RouterOS: #{parsed.version}")
|
||||
:ok
|
||||
else
|
||||
{:error, reason} = error ->
|
||||
Logger.error("Failed to fetch MikroTik firmware: #{inspect(reason)}")
|
||||
error
|
||||
end
|
||||
end
|
||||
|
||||
defp parse_mikrotik_rss(xml_body) do
|
||||
# Use :xmerl or SweetXml library
|
||||
import SweetXml
|
||||
|
||||
try do
|
||||
version = xml_body |> xpath(~x"//item/title/text()"s) |> String.trim()
|
||||
link = xml_body |> xpath(~x"//item/link/text()"s) |> String.trim()
|
||||
pub_date_str = xml_body |> xpath(~x"//item/pubDate/text()"s) |> String.trim()
|
||||
|
||||
release_date = parse_rfc822_date(pub_date_str)
|
||||
|
||||
{:ok, %{
|
||||
vendor: "mikrotik",
|
||||
product_line: "routeros",
|
||||
version: version,
|
||||
release_date: release_date,
|
||||
download_url: link,
|
||||
changelog_url: "https://mikrotik.com/download/changelogs",
|
||||
metadata: %{
|
||||
rss_title: version,
|
||||
rss_description: xml_body |> xpath(~x"//item/description/text()"s)
|
||||
}
|
||||
}}
|
||||
rescue
|
||||
e -> {:error, "XML parsing failed: #{inspect(e)}"}
|
||||
end
|
||||
end
|
||||
|
||||
defp parse_rfc822_date(date_str) do
|
||||
# "Wed, 15 Jan 2025 12:00:00 +0000" -> ~D[2025-01-15]
|
||||
case Timex.parse(date_str, "{RFC822}") do
|
||||
{:ok, datetime} -> DateTime.to_date(datetime)
|
||||
_ -> Date.utc_today() # Fallback to today if parse fails
|
||||
end
|
||||
end
|
||||
```
|
||||
|
||||
**Dependencies:**
|
||||
- Add `{:sweet_xml, "~> 0.7"}` to `mix.exs` for XML parsing
|
||||
- Use existing `:req` for HTTP (already in project)
|
||||
- Add `{:timex, "~> 3.7"}` for RFC822 date parsing (or use standard library alternative)
|
||||
|
||||
### Database Upsert Logic
|
||||
|
||||
```elixir
|
||||
defp upsert_firmware_release(attrs) do
|
||||
import Ecto.Query
|
||||
|
||||
# Use ON CONFLICT to update existing record
|
||||
%Towerops.Devices.FirmwareRelease{}
|
||||
|> Towerops.Devices.FirmwareRelease.changeset(attrs)
|
||||
|> Towerops.Repo.insert(
|
||||
on_conflict: {:replace_all_except, [:id, :inserted_at]},
|
||||
conflict_target: [:vendor, :product_line]
|
||||
)
|
||||
end
|
||||
```
|
||||
|
||||
## Version Change Detection
|
||||
|
||||
### Integration Point: Discovery Flow
|
||||
|
||||
**File:** `lib/towerops/snmp/discovery.ex`
|
||||
|
||||
**Current Flow:**
|
||||
1. `run_discovery/1` orchestrates discovery stages
|
||||
2. `build_device_info/3` extracts firmware version from SNMP
|
||||
3. `upsert_device/2` updates/inserts SNMP device record
|
||||
|
||||
**New Logic:** Add version change detection in `upsert_device/2`
|
||||
|
||||
```elixir
|
||||
defp upsert_device(device, device_info) do
|
||||
# Fetch current version BEFORE update
|
||||
current_version = get_current_firmware_version(device.id)
|
||||
new_version = device_info[:firmware_version]
|
||||
|
||||
# Perform existing upsert
|
||||
result =
|
||||
device
|
||||
|> SnmpDevice.changeset(device_info)
|
||||
|> Repo.insert_or_update()
|
||||
|
||||
# Detect and log version change
|
||||
case result do
|
||||
{:ok, snmp_device} ->
|
||||
if version_changed?(current_version, new_version) do
|
||||
log_firmware_change(snmp_device.id, current_version, new_version)
|
||||
end
|
||||
{:ok, snmp_device}
|
||||
|
||||
error -> error
|
||||
end
|
||||
end
|
||||
|
||||
defp get_current_firmware_version(device_id) do
|
||||
case Repo.get_by(SnmpDevice, device_id: device_id) do
|
||||
nil -> nil
|
||||
snmp_device -> snmp_device.firmware_version
|
||||
end
|
||||
end
|
||||
|
||||
defp version_changed?(nil, new_version) when is_binary(new_version), do: false # Initial discovery
|
||||
defp version_changed?(old, new) when old == new, do: false
|
||||
defp version_changed?(old, new) when is_binary(old) and is_binary(new), do: true
|
||||
defp version_changed?(_, _), do: false
|
||||
```
|
||||
|
||||
### Firmware Change Logging
|
||||
|
||||
**File:** `lib/towerops/devices/firmware.ex` (new context module)
|
||||
|
||||
```elixir
|
||||
defmodule Towerops.Devices.Firmware do
|
||||
import Ecto.Query
|
||||
alias Towerops.Repo
|
||||
alias Towerops.Devices.DeviceFirmwareHistory
|
||||
|
||||
def log_firmware_change(snmp_device_id, old_version, new_version) do
|
||||
attrs = %{
|
||||
snmp_device_id: snmp_device_id,
|
||||
old_version: old_version,
|
||||
new_version: new_version,
|
||||
detected_at: DateTime.utc_now(),
|
||||
detection_method: "discovery"
|
||||
}
|
||||
|
||||
%DeviceFirmwareHistory{}
|
||||
|> DeviceFirmwareHistory.changeset(attrs)
|
||||
|> Repo.insert()
|
||||
|> case do
|
||||
{:ok, history} ->
|
||||
# Create audit log entry
|
||||
create_audit_log(history)
|
||||
|
||||
# Broadcast to device topic for real-time updates
|
||||
broadcast_firmware_change(snmp_device_id, old_version, new_version)
|
||||
|
||||
{:ok, history}
|
||||
|
||||
error -> error
|
||||
end
|
||||
end
|
||||
|
||||
defp create_audit_log(history) do
|
||||
# Use existing audit log system if available
|
||||
# Or create device event
|
||||
Logger.info("Firmware changed on device #{history.snmp_device_id}: #{history.old_version} -> #{history.new_version}")
|
||||
end
|
||||
|
||||
defp broadcast_firmware_change(snmp_device_id, old_version, new_version) do
|
||||
Phoenix.PubSub.broadcast(
|
||||
Towerops.PubSub,
|
||||
"device:#{snmp_device_id}",
|
||||
{:firmware_changed, snmp_device_id, old_version, new_version}
|
||||
)
|
||||
end
|
||||
end
|
||||
```
|
||||
|
||||
## Version Comparison Logic
|
||||
|
||||
### Semantic Version Parser
|
||||
|
||||
**File:** `lib/towerops/devices/version_comparator.ex`
|
||||
|
||||
```elixir
|
||||
defmodule Towerops.Devices.VersionComparator do
|
||||
@moduledoc """
|
||||
Semantic version comparison for firmware versions.
|
||||
|
||||
Handles common formats:
|
||||
- X.Y.Z (7.14.1)
|
||||
- X.Y (7.14)
|
||||
- X.Y.Z-suffix (7.14.1-beta)
|
||||
"""
|
||||
|
||||
def compare(version1, version2) do
|
||||
parsed1 = parse_version(version1)
|
||||
parsed2 = parse_version(version2)
|
||||
|
||||
do_compare(parsed1, parsed2)
|
||||
end
|
||||
|
||||
def newer?(current, available) do
|
||||
compare(current, available) == :lt
|
||||
end
|
||||
|
||||
defp parse_version(version) when is_binary(version) do
|
||||
# Remove common prefixes
|
||||
cleaned = version
|
||||
|> String.trim()
|
||||
|> String.replace(~r/^v/i, "")
|
||||
|
||||
# Split on dots and extract numbers
|
||||
parts = cleaned
|
||||
|> String.split(["-", " "], parts: 2)
|
||||
|> List.first()
|
||||
|> String.split(".")
|
||||
|> Enum.map(&String.to_integer/1)
|
||||
|
||||
# Pad to [major, minor, patch] format
|
||||
case parts do
|
||||
[major, minor, patch] -> {major, minor, patch}
|
||||
[major, minor] -> {major, minor, 0}
|
||||
[major] -> {major, 0, 0}
|
||||
_ -> {0, 0, 0}
|
||||
end
|
||||
rescue
|
||||
_ -> {0, 0, 0} # Invalid version defaults to 0.0.0
|
||||
end
|
||||
|
||||
defp do_compare({maj1, min1, patch1}, {maj2, min2, patch2}) do
|
||||
cond do
|
||||
maj1 > maj2 -> :gt
|
||||
maj1 < maj2 -> :lt
|
||||
min1 > min2 -> :gt
|
||||
min1 < min2 -> :lt
|
||||
patch1 > patch2 -> :gt
|
||||
patch1 < patch2 -> :lt
|
||||
true -> :eq
|
||||
end
|
||||
end
|
||||
end
|
||||
```
|
||||
|
||||
**Test Cases:**
|
||||
|
||||
```elixir
|
||||
defmodule Towerops.Devices.VersionComparatorTest do
|
||||
use ExUnit.Case, async: true
|
||||
alias Towerops.Devices.VersionComparator
|
||||
|
||||
describe "compare/2" do
|
||||
test "major version differences" do
|
||||
assert VersionComparator.compare("7.14.1", "8.0.0") == :lt
|
||||
assert VersionComparator.compare("8.0.0", "7.14.1") == :gt
|
||||
end
|
||||
|
||||
test "minor version differences" do
|
||||
assert VersionComparator.compare("7.12.1", "7.14.1") == :lt
|
||||
assert VersionComparator.compare("7.14.1", "7.12.1") == :gt
|
||||
end
|
||||
|
||||
test "patch version differences" do
|
||||
assert VersionComparator.compare("7.14.1", "7.14.3") == :lt
|
||||
assert VersionComparator.compare("7.14.3", "7.14.1") == :gt
|
||||
end
|
||||
|
||||
test "equal versions" do
|
||||
assert VersionComparator.compare("7.14.1", "7.14.1") == :eq
|
||||
end
|
||||
|
||||
test "handles missing patch versions" do
|
||||
assert VersionComparator.compare("7.14", "7.14.1") == :lt
|
||||
assert VersionComparator.compare("7.14.0", "7.14") == :eq
|
||||
end
|
||||
|
||||
test "handles version prefixes" do
|
||||
assert VersionComparator.compare("v7.14.1", "7.14.2") == :lt
|
||||
assert VersionComparator.compare("V7.14.1", "7.14.2") == :lt
|
||||
end
|
||||
|
||||
test "handles beta/rc suffixes" do
|
||||
assert VersionComparator.compare("7.14.1-beta", "7.14.1") == :eq # Ignores suffix
|
||||
assert VersionComparator.compare("7.14.1-rc1", "7.14.2") == :lt
|
||||
end
|
||||
|
||||
test "handles invalid versions" do
|
||||
assert VersionComparator.compare("invalid", "7.14.1") == :lt
|
||||
assert VersionComparator.compare("7.14.1", "invalid") == :gt
|
||||
end
|
||||
end
|
||||
|
||||
describe "newer?/2" do
|
||||
test "returns true when available version is newer" do
|
||||
assert VersionComparator.newer?("7.12.1", "7.14.1")
|
||||
end
|
||||
|
||||
test "returns false when current version is newer or equal" do
|
||||
refute VersionComparator.newer?("7.14.1", "7.12.1")
|
||||
refute VersionComparator.newer?("7.14.1", "7.14.1")
|
||||
end
|
||||
end
|
||||
end
|
||||
```
|
||||
|
||||
## LiveView Integration
|
||||
|
||||
### Device Detail Page Updates
|
||||
|
||||
**File:** `lib/towerops_web/live/device_live/show.ex`
|
||||
|
||||
**Add to mount/assigns:**
|
||||
|
||||
```elixir
|
||||
def mount(%{"id" => id}, _session, socket) do
|
||||
# ... existing code ...
|
||||
|
||||
socket = socket
|
||||
# ... existing assigns ...
|
||||
|> assign(:available_firmware, nil) # Will be loaded on first refresh
|
||||
|> load_available_firmware() # New helper
|
||||
|
||||
{:ok, socket}
|
||||
end
|
||||
|
||||
defp load_available_firmware(socket) do
|
||||
snmp_device = socket.assigns.snmp_device
|
||||
|
||||
case get_available_firmware(snmp_device) do
|
||||
{:ok, firmware_release} ->
|
||||
assign(socket, :available_firmware, firmware_release)
|
||||
|
||||
{:error, _} ->
|
||||
assign(socket, :available_firmware, nil)
|
||||
end
|
||||
end
|
||||
|
||||
defp get_available_firmware(nil), do: {:error, :no_snmp_device}
|
||||
defp get_available_firmware(snmp_device) do
|
||||
# Determine vendor/product_line from snmp_device.manufacturer
|
||||
vendor = determine_vendor(snmp_device.manufacturer)
|
||||
product_line = determine_product_line(snmp_device.manufacturer, snmp_device.model)
|
||||
|
||||
case Towerops.Devices.Firmware.get_latest_release(vendor, product_line) do
|
||||
nil -> {:error, :no_release_data}
|
||||
release -> {:ok, release}
|
||||
end
|
||||
end
|
||||
|
||||
defp determine_vendor("MikroTik"), do: "mikrotik"
|
||||
defp determine_vendor("Cisco"), do: "cisco"
|
||||
defp determine_vendor(_), do: nil
|
||||
|
||||
defp determine_product_line("MikroTik", _model), do: "routeros"
|
||||
# Future: Cisco IOS vs IOS-XE detection based on model
|
||||
defp determine_product_line(_, _), do: nil
|
||||
```
|
||||
|
||||
**Add to PubSub handler:**
|
||||
|
||||
```elixir
|
||||
def handle_info({:firmware_changed, _snmp_device_id, _old, _new}, socket) do
|
||||
# Reload firmware data when change detected
|
||||
{:noreply, load_available_firmware(socket)}
|
||||
end
|
||||
```
|
||||
|
||||
### UI Component
|
||||
|
||||
**File:** `lib/towerops_web/live/device_live/show.html.heex`
|
||||
|
||||
**Add near top of Overview tab (after device name/status):**
|
||||
|
||||
```heex
|
||||
<!-- Firmware Update Indicator -->
|
||||
<%= if firmware_update_available?(@snmp_device, @available_firmware) do %>
|
||||
<div class="mt-4 rounded-md bg-blue-50 dark:bg-blue-900/20 p-4 border border-blue-200 dark:border-blue-800">
|
||||
<div class="flex">
|
||||
<div class="flex-shrink-0">
|
||||
<.icon name="hero-arrow-up-circle" class="h-5 w-5 text-blue-400" />
|
||||
</div>
|
||||
<div class="ml-3 flex-1">
|
||||
<h3 class="text-sm font-medium text-blue-800 dark:text-blue-200">
|
||||
Firmware Update Available
|
||||
</h3>
|
||||
<div class="mt-2 text-sm text-blue-700 dark:text-blue-300">
|
||||
<p>
|
||||
Current version: <span class="font-mono font-semibold"><%= @snmp_device.firmware_version %></span>
|
||||
<br>
|
||||
Latest version: <span class="font-mono font-semibold"><%= @available_firmware.version %></span>
|
||||
<span :if={@available_firmware.release_date} class="text-xs">
|
||||
(released <%= format_date(@available_firmware.release_date) %>)
|
||||
</span>
|
||||
</p>
|
||||
</div>
|
||||
<div class="mt-3">
|
||||
<a
|
||||
href={@available_firmware.download_url}
|
||||
target="_blank"
|
||||
rel="noopener noreferrer"
|
||||
class="inline-flex items-center rounded-md bg-blue-600 px-3 py-2 text-sm font-semibold text-white shadow-sm hover:bg-blue-500 focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-blue-600"
|
||||
>
|
||||
Download Firmware
|
||||
<.icon name="hero-arrow-top-right-on-square" class="ml-1.5 h-4 w-4" />
|
||||
</a>
|
||||
<a
|
||||
:if={@available_firmware.changelog_url}
|
||||
href={@available_firmware.changelog_url}
|
||||
target="_blank"
|
||||
rel="noopener noreferrer"
|
||||
class="ml-3 inline-flex items-center text-sm font-medium text-blue-600 dark:text-blue-400 hover:text-blue-500"
|
||||
>
|
||||
View Release Notes
|
||||
<.icon name="hero-arrow-top-right-on-square" class="ml-1 h-4 w-4" />
|
||||
</a>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<% end %>
|
||||
```
|
||||
|
||||
**Helper functions:**
|
||||
|
||||
```elixir
|
||||
defp firmware_update_available?(nil, _), do: false
|
||||
defp firmware_update_available?(_, nil), do: false
|
||||
defp firmware_update_available?(snmp_device, available_firmware) do
|
||||
current = snmp_device.firmware_version
|
||||
available = available_firmware.version
|
||||
|
||||
current && available &&
|
||||
Towerops.Devices.VersionComparator.newer?(current, available)
|
||||
end
|
||||
|
||||
defp format_date(nil), do: ""
|
||||
defp format_date(date) do
|
||||
Calendar.strftime(date, "%B %-d, %Y") # "January 15, 2026"
|
||||
end
|
||||
```
|
||||
|
||||
## Context Module: `Towerops.Devices.Firmware`
|
||||
|
||||
**File:** `lib/towerops/devices/firmware.ex`
|
||||
|
||||
```elixir
|
||||
defmodule Towerops.Devices.Firmware do
|
||||
@moduledoc """
|
||||
Context for firmware version tracking and management.
|
||||
"""
|
||||
|
||||
import Ecto.Query
|
||||
alias Towerops.Repo
|
||||
alias Towerops.Devices.{FirmwareRelease, DeviceFirmwareHistory}
|
||||
require Logger
|
||||
|
||||
## Firmware Releases
|
||||
|
||||
def get_latest_release(vendor, product_line) do
|
||||
Repo.get_by(FirmwareRelease, vendor: vendor, product_line: product_line)
|
||||
end
|
||||
|
||||
def upsert_firmware_release(attrs) do
|
||||
%FirmwareRelease{}
|
||||
|> FirmwareRelease.changeset(attrs)
|
||||
|> Repo.insert(
|
||||
on_conflict: {:replace_all_except, [:id, :inserted_at]},
|
||||
conflict_target: [:vendor, :product_line]
|
||||
)
|
||||
end
|
||||
|
||||
## Firmware History
|
||||
|
||||
def list_device_firmware_history(snmp_device_id, limit \\ 20) do
|
||||
DeviceFirmwareHistory
|
||||
|> where([h], h.snmp_device_id == ^snmp_device_id)
|
||||
|> order_by([h], desc: h.detected_at)
|
||||
|> limit(^limit)
|
||||
|> Repo.all()
|
||||
end
|
||||
|
||||
def log_firmware_change(snmp_device_id, old_version, new_version) do
|
||||
attrs = %{
|
||||
snmp_device_id: snmp_device_id,
|
||||
old_version: old_version,
|
||||
new_version: new_version,
|
||||
detected_at: DateTime.utc_now(),
|
||||
detection_method: "discovery"
|
||||
}
|
||||
|
||||
%DeviceFirmwareHistory{}
|
||||
|> DeviceFirmwareHistory.changeset(attrs)
|
||||
|> Repo.insert()
|
||||
|> case do
|
||||
{:ok, history} ->
|
||||
log_change_event(history)
|
||||
broadcast_firmware_change(snmp_device_id, old_version, new_version)
|
||||
{:ok, history}
|
||||
|
||||
error -> error
|
||||
end
|
||||
end
|
||||
|
||||
defp log_change_event(history) do
|
||||
Logger.info(
|
||||
"Firmware version changed",
|
||||
snmp_device_id: history.snmp_device_id,
|
||||
old_version: history.old_version,
|
||||
new_version: history.new_version,
|
||||
detected_at: history.detected_at
|
||||
)
|
||||
end
|
||||
|
||||
defp broadcast_firmware_change(snmp_device_id, old_version, new_version) do
|
||||
Phoenix.PubSub.broadcast(
|
||||
Towerops.PubSub,
|
||||
"device:#{snmp_device_id}",
|
||||
{:firmware_changed, snmp_device_id, old_version, new_version}
|
||||
)
|
||||
end
|
||||
end
|
||||
```
|
||||
|
||||
## Extensibility for Future Vendors
|
||||
|
||||
### Adding Cisco IOS Support (Example)
|
||||
|
||||
**1. Add fetch function to worker:**
|
||||
|
||||
```elixir
|
||||
# In FirmwareVersionFetcherWorker
|
||||
defp fetch_cisco_ios do
|
||||
# Cisco uses different mechanism - maybe API or web scraping
|
||||
url = "https://software.cisco.com/download/latest/ios-xe"
|
||||
|
||||
with {:ok, %{status: 200, body: body}} <- Req.get(url, headers: [{"Accept", "application/json"}]),
|
||||
{:ok, parsed} <- parse_cisco_api(body),
|
||||
{:ok, _release} <- Towerops.Devices.Firmware.upsert_firmware_release(parsed) do
|
||||
:ok
|
||||
end
|
||||
end
|
||||
|
||||
defp parse_cisco_api(json_body) do
|
||||
# Vendor-specific parsing
|
||||
data = Jason.decode!(json_body)
|
||||
|
||||
{:ok, %{
|
||||
vendor: "cisco",
|
||||
product_line: "ios-xe",
|
||||
version: data["latestVersion"],
|
||||
download_url: data["downloadUrl"],
|
||||
# ...
|
||||
}}
|
||||
end
|
||||
```
|
||||
|
||||
**2. Update vendor detection in LiveView:**
|
||||
|
||||
```elixir
|
||||
defp determine_vendor("Cisco Systems"), do: "cisco"
|
||||
|
||||
defp determine_product_line("Cisco Systems", model) do
|
||||
cond do
|
||||
String.contains?(model, "Catalyst") -> "ios-xe"
|
||||
String.contains?(model, "ASR") -> "ios-xr"
|
||||
true -> "ios"
|
||||
end
|
||||
end
|
||||
```
|
||||
|
||||
**3. Run migration to add new firmware release record** (happens automatically via worker)
|
||||
|
||||
### Configuration-Based Approach (Future Enhancement)
|
||||
|
||||
Store vendor fetch configurations in database or config file:
|
||||
|
||||
```elixir
|
||||
# config/firmware_sources.exs
|
||||
[
|
||||
%{
|
||||
vendor: "mikrotik",
|
||||
product_line: "routeros",
|
||||
source_type: :rss,
|
||||
url: "https://cdn.mikrotik.com/routeros/latest-stable.rss",
|
||||
parser: Towerops.Devices.FirmwareParsers.MikroTikRSS
|
||||
},
|
||||
%{
|
||||
vendor: "cisco",
|
||||
product_line: "ios-xe",
|
||||
source_type: :api,
|
||||
url: "https://software.cisco.com/api/latest",
|
||||
parser: Towerops.Devices.FirmwareParsers.CiscoAPI,
|
||||
auth: :api_key
|
||||
}
|
||||
]
|
||||
```
|
||||
|
||||
## Testing Strategy
|
||||
|
||||
### Unit Tests
|
||||
|
||||
**1. Version Comparator Tests** (see above)
|
||||
|
||||
**2. RSS Parsing Tests:**
|
||||
|
||||
```elixir
|
||||
defmodule Towerops.Workers.FirmwareVersionFetcherWorkerTest do
|
||||
use Towerops.DataCase
|
||||
|
||||
test "parses MikroTik RSS correctly" do
|
||||
xml = """
|
||||
<?xml version="1.0"?>
|
||||
<rss version="2.0">
|
||||
<channel>
|
||||
<item>
|
||||
<title>7.14.1</title>
|
||||
<link>https://mikrotik.com/download</link>
|
||||
<pubDate>Wed, 15 Jan 2025 12:00:00 +0000</pubDate>
|
||||
</item>
|
||||
</channel>
|
||||
</rss>
|
||||
"""
|
||||
|
||||
# Test parsing logic
|
||||
end
|
||||
end
|
||||
```
|
||||
|
||||
**3. Version Change Detection:**
|
||||
|
||||
```elixir
|
||||
test "detects firmware version change during discovery" do
|
||||
device = insert(:device)
|
||||
snmp_device = insert(:snmp_device, device: device, firmware_version: "7.12.1")
|
||||
|
||||
# Run discovery with new version
|
||||
# Assert DeviceFirmwareHistory record created
|
||||
# Assert PubSub broadcast sent
|
||||
end
|
||||
|
||||
test "does not log change for initial discovery" do
|
||||
device = insert(:device)
|
||||
# No existing snmp_device
|
||||
|
||||
# Run discovery
|
||||
# Assert no DeviceFirmwareHistory record
|
||||
end
|
||||
```
|
||||
|
||||
### Integration Tests
|
||||
|
||||
**1. Worker Execution:**
|
||||
|
||||
```elixir
|
||||
test "FirmwareVersionFetcherWorker fetches and stores MikroTik version" do
|
||||
# Mock HTTP response
|
||||
# Execute worker
|
||||
# Assert FirmwareRelease record created/updated
|
||||
end
|
||||
```
|
||||
|
||||
**2. LiveView Display:**
|
||||
|
||||
```elixir
|
||||
test "shows firmware update indicator when newer version available" do
|
||||
firmware_release = insert(:firmware_release, vendor: "mikrotik", version: "7.14.1")
|
||||
snmp_device = insert(:snmp_device, manufacturer: "MikroTik", firmware_version: "7.12.1")
|
||||
|
||||
{:ok, view, _html} = live(conn, ~p"/devices/#{snmp_device.device_id}")
|
||||
|
||||
assert has_element?(view, "[data-test='firmware-update-indicator']")
|
||||
assert render(view) =~ "7.14.1"
|
||||
end
|
||||
```
|
||||
|
||||
## Implementation Checklist
|
||||
|
||||
### Phase 1: Database Schema
|
||||
- [ ] Create migration for `firmware_releases` table
|
||||
- [ ] Create migration for `device_firmware_history` table
|
||||
- [ ] Create `FirmwareRelease` schema module
|
||||
- [ ] Create `DeviceFirmwareHistory` schema module
|
||||
- [ ] Create `Towerops.Devices.Firmware` context module
|
||||
- [ ] Write tests for schema validations
|
||||
|
||||
### Phase 2: Version Comparison
|
||||
- [ ] Create `VersionComparator` module
|
||||
- [ ] Write comprehensive version comparison tests
|
||||
- [ ] Handle edge cases (missing patches, prefixes, suffixes)
|
||||
|
||||
### Phase 3: RSS Fetching Worker
|
||||
- [ ] Add `sweet_xml` dependency to mix.exs
|
||||
- [ ] Create `FirmwareVersionFetcherWorker`
|
||||
- [ ] Implement MikroTik RSS parsing
|
||||
- [ ] Add worker to Oban cron schedule
|
||||
- [ ] Write worker tests with mocked HTTP responses
|
||||
- [ ] Test error handling (network failures, malformed XML)
|
||||
|
||||
### Phase 4: Version Change Detection
|
||||
- [ ] Modify `Discovery.upsert_device/2` to detect changes
|
||||
- [ ] Implement `Firmware.log_firmware_change/3`
|
||||
- [ ] Add PubSub broadcast for firmware changes
|
||||
- [ ] Write integration tests for change detection
|
||||
- [ ] Test initial discovery (no history created)
|
||||
|
||||
### Phase 5: LiveView Integration
|
||||
- [ ] Add `available_firmware` assign to DeviceLive.Show
|
||||
- [ ] Implement `load_available_firmware/1` helper
|
||||
- [ ] Add firmware update indicator component to template
|
||||
- [ ] Add PubSub handler for `:firmware_changed` events
|
||||
- [ ] Write LiveView tests for indicator display
|
||||
- [ ] Test with different vendors (show for MikroTik, hide for others)
|
||||
|
||||
### Phase 6: Documentation & Cleanup
|
||||
- [ ] Update CLAUDE.md with firmware tracking info
|
||||
- [ ] Add developer documentation for adding new vendors
|
||||
- [ ] Run `mix format` on all new files
|
||||
- [ ] Run `mix dialyzer` and fix any warnings
|
||||
- [ ] Ensure test coverage >90% for new modules
|
||||
- [ ] Manual testing with real MikroTik device
|
||||
|
||||
## Future Enhancements
|
||||
|
||||
1. **Version History Display:**
|
||||
- Add "Firmware History" tab to device detail page
|
||||
- Show timeline of version changes with dates
|
||||
|
||||
2. **Firmware Update Notifications:**
|
||||
- Email digest of devices with available updates
|
||||
- Dashboard widget showing update summary
|
||||
|
||||
3. **Bulk Update Tracking:**
|
||||
- Mark multiple devices as "planned for update"
|
||||
- Track update completion across organization
|
||||
|
||||
4. **Multi-Vendor Support:**
|
||||
- Cisco IOS/IOS-XE (requires API or web scraping)
|
||||
- Ubiquiti UniFi (RSS or API)
|
||||
- Juniper JunOS (API)
|
||||
|
||||
5. **Release Notes Parsing:**
|
||||
- Extract changelog highlights from vendor sources
|
||||
- Display in-app without external link
|
||||
|
||||
6. **Smart Update Recommendations:**
|
||||
- Security bulletin awareness (CVE tracking)
|
||||
- Recommend updates based on severity
|
||||
- "Skip this version" for known problematic releases
|
||||
|
||||
## Security Considerations
|
||||
|
||||
1. **External HTTP Requests:**
|
||||
- RSS feeds are public, no authentication required
|
||||
- Use HTTPS for all vendor URLs
|
||||
- Set reasonable timeouts (5-10 seconds)
|
||||
- Rate limit to avoid overwhelming vendor servers
|
||||
|
||||
2. **Data Validation:**
|
||||
- Sanitize all parsed XML/JSON before storage
|
||||
- Validate version format before comparison
|
||||
- Prevent XML entity expansion attacks (XXE)
|
||||
|
||||
3. **PII/Sensitive Data:**
|
||||
- No sensitive data in firmware tracking
|
||||
- Download URLs are public vendor pages
|
||||
- Device firmware versions are operational metadata
|
||||
|
||||
## Performance Considerations
|
||||
|
||||
1. **RSS Fetching:**
|
||||
- Daily schedule minimizes external requests
|
||||
- Async worker doesn't block web requests
|
||||
- Failed fetches retry (Oban max_attempts: 3)
|
||||
|
||||
2. **LiveView Loading:**
|
||||
- Firmware lookup is single query by vendor/product_line
|
||||
- Indexed unique constraint makes lookup fast
|
||||
- Version comparison is in-memory (no DB query)
|
||||
|
||||
3. **Version History:**
|
||||
- Indexed on `snmp_device_id + detected_at`
|
||||
- Limit queries to recent N records (default 20)
|
||||
- Cascading delete prevents orphaned records
|
||||
|
||||
## Rollout Plan
|
||||
|
||||
1. **Deploy schema migrations** (production downtime: ~5 seconds)
|
||||
2. **Deploy worker code** (no immediate execution)
|
||||
3. **Manually trigger worker** to seed initial firmware data: `Oban.insert(Towerops.Workers.FirmwareVersionFetcherWorker.new(%{}))`
|
||||
4. **Verify firmware release record** created
|
||||
5. **Monitor cron execution** daily at 2am
|
||||
6. **Enable LiveView indicator** after confirming data accuracy
|
||||
|
||||
## Monitoring & Alerts
|
||||
|
||||
1. **Worker Failures:**
|
||||
- Oban dashboard shows failed jobs
|
||||
- Email alert if worker fails 3 consecutive days
|
||||
- Log warning if RSS format changes unexpectedly
|
||||
|
||||
2. **Data Freshness:**
|
||||
- Alert if `firmware_releases.fetched_at` >48 hours old
|
||||
- Dashboard shows last successful fetch time
|
||||
|
||||
3. **Version Comparison Issues:**
|
||||
- Log warning for unparseable version strings
|
||||
- Store raw version in history for manual review
|
||||
|
|
@ -107,7 +107,10 @@ defmodule Towerops.Snmp.Profiles.Dynamic do
|
|||
# prefer the one with a proper description (not a MIB name)
|
||||
deduped_sensors = deduplicate_by_oid(all_sensors)
|
||||
|
||||
{:ok, deduped_sensors}
|
||||
# Apply vendor-specific post-processing (e.g., Arista DOM power conversion + thresholds)
|
||||
final_sensors = apply_vendor_post_processing(profile, deduped_sensors, client_opts)
|
||||
|
||||
{:ok, final_sensors}
|
||||
end
|
||||
|
||||
@doc """
|
||||
|
|
@ -526,4 +529,31 @@ defmodule Towerops.Snmp.Profiles.Dynamic do
|
|||
end
|
||||
|
||||
defp has_mib_symbolic_name?(_), do: false
|
||||
|
||||
# Applies vendor-specific post-processing to discovered sensors.
|
||||
# This allows vendors to enhance or transform sensors after base discovery.
|
||||
# For example, Arista converts DOM power sensors from watts to dBm and adds
|
||||
# vendor-specific thresholds.
|
||||
@spec apply_vendor_post_processing(map(), [map()], Client.connection_opts()) :: [map()]
|
||||
defp apply_vendor_post_processing(%{name: name} = _profile, sensors, client_opts) do
|
||||
case name do
|
||||
"arista_eos" ->
|
||||
# Apply Arista-specific enhancements
|
||||
alias Towerops.Snmp.Profiles.Vendors.Arista
|
||||
|
||||
Arista.post_process_sensors(sensors, client_opts)
|
||||
|
||||
"arista-mos" ->
|
||||
# Apply Arista-specific enhancements
|
||||
alias Towerops.Snmp.Profiles.Vendors.Arista
|
||||
|
||||
Arista.post_process_sensors(sensors, client_opts)
|
||||
|
||||
_ ->
|
||||
# No vendor-specific post-processing
|
||||
sensors
|
||||
end
|
||||
end
|
||||
|
||||
defp apply_vendor_post_processing(_profile, sensors, _client_opts), do: sensors
|
||||
end
|
||||
|
|
|
|||
273
lib/towerops/snmp/profiles/vendors/arista.ex
vendored
273
lib/towerops/snmp/profiles/vendors/arista.ex
vendored
|
|
@ -83,4 +83,277 @@ defmodule Towerops.Snmp.Profiles.Vendors.Arista do
|
|||
}
|
||||
]
|
||||
end
|
||||
|
||||
@doc """
|
||||
Post-processes sensors discovered from ENTITY-SENSOR-MIB to apply Arista-specific
|
||||
enhancements:
|
||||
|
||||
1. DOM Rx/Tx Power Conversion - Converts optical power from watts to dBm
|
||||
2. Arista Threshold Discovery - Fetches warning/critical limits from ARISTA-ENTITY-SENSOR-MIB
|
||||
3. Smart Grouping - Organizes sensors by SFPs, PSUs, Platform, System
|
||||
4. Description Cleanup - Removes redundant text
|
||||
|
||||
This function should be called after base ENTITY-SENSOR-MIB discovery.
|
||||
"""
|
||||
@spec post_process_sensors([map()], Client.connection_opts()) :: [map()]
|
||||
def post_process_sensors(sensors, client_opts) do
|
||||
# First, convert DOM power sensors from watts to dBm
|
||||
sensors_with_dbm = Enum.map(sensors, &convert_dom_power_to_dbm/1)
|
||||
|
||||
# Then, fetch and apply Arista thresholds
|
||||
sensors_with_thresholds = apply_arista_thresholds(sensors_with_dbm, client_opts)
|
||||
|
||||
# Apply smart grouping
|
||||
sensors_with_groups = Enum.map(sensors_with_thresholds, &apply_smart_grouping/1)
|
||||
|
||||
# Clean up descriptions
|
||||
Enum.map(sensors_with_groups, &cleanup_description/1)
|
||||
end
|
||||
|
||||
@doc """
|
||||
Converts DOM Rx/Tx power sensors from watts to dBm.
|
||||
|
||||
Arista devices report optical power in watts via ENTITY-SENSOR-MIB, but users
|
||||
expect dBm (industry standard for optical power). This function detects DOM
|
||||
power sensors and converts them.
|
||||
|
||||
Formula: dBm = 10 * log10(watts / 0.001)
|
||||
= 10 * log10(watts / 10^-3)
|
||||
= 10 * (log10(watts) + 3)
|
||||
|
||||
Example: 0.0005 watts = -3.010 dBm
|
||||
"""
|
||||
@spec convert_dom_power_to_dbm(map()) :: map()
|
||||
def convert_dom_power_to_dbm(%{sensor_descr: descr} = sensor) when is_binary(descr) do
|
||||
# Match patterns like "DOM Rx Power", "DOM Tx Power", "Xcvr Rx Power", "Xcvr Tx Power"
|
||||
if dom_power_sensor?(descr) do
|
||||
do_convert_dom_power(sensor)
|
||||
else
|
||||
sensor
|
||||
end
|
||||
end
|
||||
|
||||
def convert_dom_power_to_dbm(sensor), do: sensor
|
||||
|
||||
@spec dom_power_sensor?(String.t()) :: boolean()
|
||||
defp dom_power_sensor?(descr), do: Regex.match?(~r/(DOM|Xcvr) (R|T)x Power/i, descr)
|
||||
|
||||
@spec do_convert_dom_power(map()) :: map()
|
||||
defp do_convert_dom_power(%{sensor_type: "power", last_value: watts} = sensor) when is_number(watts) and watts > 0 do
|
||||
# Convert watts to dBm: dBm = 10 * log10(watts * 1000)
|
||||
dbm_value = 10 * :math.log10(watts * 1000)
|
||||
dbm_rounded = Float.round(dbm_value, 3)
|
||||
|
||||
# Update sensor type and value
|
||||
sensor
|
||||
|> Map.put(:sensor_type, "dbm")
|
||||
|> Map.put(:sensor_unit, "dBm")
|
||||
|> Map.put(:last_value, dbm_rounded)
|
||||
|> Map.put(:sensor_divisor, 1)
|
||||
|> Map.update(:metadata, %{original_type: "power", original_value: watts}, fn meta ->
|
||||
Map.merge(meta, %{original_type: "power", original_value: watts})
|
||||
end)
|
||||
end
|
||||
|
||||
defp do_convert_dom_power(sensor), do: sensor
|
||||
|
||||
@doc """
|
||||
Fetches threshold values from ARISTA-ENTITY-SENSOR-MIB and applies them to sensors.
|
||||
|
||||
Arista extends ENTITY-SENSOR-MIB with aristaEntSensorThresholdTable which provides
|
||||
four threshold levels:
|
||||
- Type 1: Low Critical → low_limit
|
||||
- Type 2: Low Warning → low_warn_limit
|
||||
- Type 3: High Warning → warn_limit
|
||||
- Type 4: High Critical → high_limit
|
||||
|
||||
OID: 1.3.6.1.4.1.30065.3.3.1.1 (ARISTA-ENTITY-SENSOR-MIB::aristaEntSensorThresholdTable)
|
||||
"""
|
||||
@spec apply_arista_thresholds([map()], Client.connection_opts()) :: [map()]
|
||||
def apply_arista_thresholds(sensors, client_opts) do
|
||||
# Walk the Arista threshold table
|
||||
# OID format: 1.3.6.1.4.1.30065.3.3.1.1.1.X.Y where X = sensor index, Y = threshold type
|
||||
threshold_oid = "1.3.6.1.4.1.30065.3.3.1.1.1"
|
||||
|
||||
case Client.walk(client_opts, threshold_oid) do
|
||||
{:ok, threshold_data} when map_size(threshold_data) > 0 ->
|
||||
# Parse threshold data into a map: sensor_index => %{type => value}
|
||||
threshold_map = parse_arista_thresholds(threshold_data)
|
||||
|
||||
# Apply thresholds to each sensor
|
||||
Enum.map(sensors, fn sensor ->
|
||||
apply_threshold_to_sensor(sensor, threshold_map)
|
||||
end)
|
||||
|
||||
_ ->
|
||||
# No Arista thresholds available, return sensors unchanged
|
||||
sensors
|
||||
end
|
||||
end
|
||||
|
||||
@spec parse_arista_thresholds(map()) :: map()
|
||||
defp parse_arista_thresholds(threshold_data) do
|
||||
# Parse OIDs like "1.3.6.1.4.1.30065.3.3.1.1.1.1001.3" where:
|
||||
# - 1001 is the sensor index
|
||||
# - 3 is the threshold type (1=low_critical, 2=low_warn, 3=high_warn, 4=high_critical)
|
||||
# - value is the threshold value
|
||||
|
||||
Enum.reduce(threshold_data, %{}, fn {oid, value}, acc ->
|
||||
case extract_sensor_and_threshold_type(oid) do
|
||||
{sensor_index, threshold_type} when is_integer(value) or is_float(value) ->
|
||||
# Add threshold to sensor's map
|
||||
sensor_thresholds = Map.get(acc, sensor_index, %{})
|
||||
updated_thresholds = Map.put(sensor_thresholds, threshold_type, value)
|
||||
Map.put(acc, sensor_index, updated_thresholds)
|
||||
|
||||
_ ->
|
||||
# Invalid OID format or value, skip
|
||||
acc
|
||||
end
|
||||
end)
|
||||
end
|
||||
|
||||
@spec extract_sensor_and_threshold_type(String.t()) :: {integer(), integer()} | nil
|
||||
defp extract_sensor_and_threshold_type(oid) do
|
||||
# Extract last two numbers from OID: sensor_index.threshold_type
|
||||
case oid |> String.split(".") |> Enum.take(-2) do
|
||||
[sensor_index_str, threshold_type_str] ->
|
||||
with {sensor_index, ""} <- Integer.parse(sensor_index_str),
|
||||
{threshold_type, ""} <- Integer.parse(threshold_type_str) do
|
||||
{sensor_index, threshold_type}
|
||||
else
|
||||
_ -> nil
|
||||
end
|
||||
|
||||
_ ->
|
||||
nil
|
||||
end
|
||||
end
|
||||
|
||||
@spec apply_threshold_to_sensor(map(), map()) :: map()
|
||||
defp apply_threshold_to_sensor(%{sensor_index: index} = sensor, threshold_map) when is_binary(index) do
|
||||
# Convert sensor_index string to integer for lookup
|
||||
case Integer.parse(index) do
|
||||
{sensor_idx, ""} ->
|
||||
case Map.get(threshold_map, sensor_idx) do
|
||||
nil ->
|
||||
# No thresholds for this sensor
|
||||
sensor
|
||||
|
||||
thresholds ->
|
||||
# Apply thresholds based on type
|
||||
# If sensor is dBm type, convert threshold from watts to dBm
|
||||
apply_thresholds_by_type(sensor, thresholds)
|
||||
end
|
||||
|
||||
_ ->
|
||||
# Invalid sensor index format
|
||||
sensor
|
||||
end
|
||||
end
|
||||
|
||||
defp apply_threshold_to_sensor(sensor, _threshold_map), do: sensor
|
||||
|
||||
@spec apply_thresholds_by_type(map(), map()) :: map()
|
||||
defp apply_thresholds_by_type(sensor, thresholds) do
|
||||
is_dbm = sensor[:sensor_type] == "dbm"
|
||||
|
||||
# Convert thresholds if this is a dBm sensor
|
||||
converted_thresholds =
|
||||
if is_dbm do
|
||||
Enum.reduce(thresholds, %{}, fn {type, watts}, acc ->
|
||||
dbm = convert_threshold_watts_to_dbm(watts)
|
||||
Map.put(acc, type, dbm)
|
||||
end)
|
||||
else
|
||||
thresholds
|
||||
end
|
||||
|
||||
# Map threshold types to sensor limit fields
|
||||
# Type 1: Low Critical, Type 2: Low Warning, Type 3: High Warning, Type 4: High Critical
|
||||
sensor
|
||||
|> maybe_put_limit(:low_limit, Map.get(converted_thresholds, 1))
|
||||
|> maybe_put_limit(:low_warn_limit, Map.get(converted_thresholds, 2))
|
||||
|> maybe_put_limit(:warn_limit, Map.get(converted_thresholds, 3))
|
||||
|> maybe_put_limit(:high_limit, Map.get(converted_thresholds, 4))
|
||||
end
|
||||
|
||||
@spec convert_threshold_watts_to_dbm(number()) :: float() | nil
|
||||
defp convert_threshold_watts_to_dbm(watts) when watts > 0 do
|
||||
Float.round(10 * :math.log10(watts * 1000), 2)
|
||||
end
|
||||
|
||||
defp convert_threshold_watts_to_dbm(_watts), do: nil
|
||||
|
||||
@spec maybe_put_limit(map(), atom(), number() | nil) :: map()
|
||||
defp maybe_put_limit(sensor, _field, nil), do: sensor
|
||||
defp maybe_put_limit(sensor, field, value), do: Map.put(sensor, field, value)
|
||||
|
||||
@doc """
|
||||
Applies smart grouping to organize sensors by type (SFPs, PSUs, Platform, System).
|
||||
|
||||
This improves UI/UX by grouping related sensors together.
|
||||
"""
|
||||
@spec apply_smart_grouping(map()) :: map()
|
||||
def apply_smart_grouping(%{sensor_descr: descr} = sensor) when is_binary(descr) do
|
||||
group =
|
||||
cond do
|
||||
# SFP/transceiver sensors
|
||||
String.contains?(descr, "DOM") or String.contains?(descr, "Xcvr") ->
|
||||
"SFPs"
|
||||
|
||||
# Power connector sensors
|
||||
String.contains?(descr, "PwrCon") ->
|
||||
# Extract connector number if present
|
||||
case Regex.run(~r/PwrCon(\d+)/, descr) do
|
||||
[_, num] -> "PwrCon#{num}"
|
||||
_ -> "Power Connectors"
|
||||
end
|
||||
|
||||
# Platform chipset sensors (Trident, Jericho, FM6000, etc.)
|
||||
String.match?(descr, ~r/^(Trident|Jericho|FM\d+|Arad|Sand)/i) ->
|
||||
"Platform"
|
||||
|
||||
# Power supply sensors
|
||||
String.match?(descr, ~r/^(Power|PSU)/i) ->
|
||||
"PSUs"
|
||||
|
||||
# Everything else
|
||||
true ->
|
||||
"System"
|
||||
end
|
||||
|
||||
Map.put(sensor, :sensor_group, group)
|
||||
end
|
||||
|
||||
def apply_smart_grouping(sensor), do: sensor
|
||||
|
||||
@doc """
|
||||
Cleans up sensor descriptions by removing redundant text.
|
||||
|
||||
Examples:
|
||||
- "Temp Sensor 1 sensor" → "Temp Sensor 1"
|
||||
- "DOM Rx Power sensor" → "DOM Rx Power"
|
||||
- "PowerSupply1/1 Sensor VoltageSensor1" → "PowerSupply1 Voltage"
|
||||
"""
|
||||
@spec cleanup_description(map()) :: map()
|
||||
def cleanup_description(%{sensor_descr: descr} = sensor) when is_binary(descr) do
|
||||
cleaned =
|
||||
descr
|
||||
# Remove trailing " sensor"
|
||||
|> String.replace(~r/\s+sensor$/i, "")
|
||||
# Remove duplicate "Sensor" strings
|
||||
|> String.replace(~r/Sensor\s+(\w+)Sensor/i, "\\1")
|
||||
# Simplify PSU naming: "PowerSupply1/1 Sensor VoltageSensor1" → "PowerSupply1 Voltage"
|
||||
|> String.replace(~r/PowerSupply(\d+)\/\d+\s+Sensor\s+(\w+)Sensor\d+/i, "PowerSupply\\1 \\2")
|
||||
# Remove "hotspot" redundancy
|
||||
|> String.replace(~r/\s*hotspot\s*/i, " ")
|
||||
# Clean up whitespace
|
||||
|> String.replace(~r/\s+/, " ")
|
||||
|> String.trim()
|
||||
|
||||
Map.put(sensor, :sensor_descr, cleaned)
|
||||
end
|
||||
|
||||
def cleanup_description(sensor), do: sensor
|
||||
end
|
||||
|
|
|
|||
|
|
@ -26,10 +26,9 @@ defmodule ToweropsWeb.ConnCase do
|
|||
import Phoenix.ConnTest
|
||||
import Plug.Conn
|
||||
import ToweropsWeb.ConnCase
|
||||
import ToweropsWeb.LiveViewTestHelpers
|
||||
# The default endpoint for testing
|
||||
@endpoint ToweropsWeb.Endpoint
|
||||
|
||||
# Import conveniences for testing with connections
|
||||
end
|
||||
end
|
||||
|
||||
|
|
|
|||
26
test/support/live_view_test_helpers.ex
Normal file
26
test/support/live_view_test_helpers.ex
Normal file
|
|
@ -0,0 +1,26 @@
|
|||
defmodule ToweropsWeb.LiveViewTestHelpers do
|
||||
@moduledoc """
|
||||
Helpers for LiveView tests using data-testid attributes.
|
||||
|
||||
Provides `assert_has/2,3` and `refute_has/2` for structural assertions
|
||||
that are resilient to text/wording changes in templates.
|
||||
"""
|
||||
|
||||
import ExUnit.Assertions
|
||||
import Phoenix.LiveViewTest
|
||||
|
||||
@doc "Assert an element with the given data-testid exists"
|
||||
def assert_has(view, testid) do
|
||||
assert has_element?(view, "[data-testid='#{testid}']")
|
||||
end
|
||||
|
||||
@doc "Assert an element with the given data-testid exists and contains text"
|
||||
def assert_has(view, testid, text) do
|
||||
assert has_element?(view, "[data-testid='#{testid}']", text)
|
||||
end
|
||||
|
||||
@doc "Refute an element with the given data-testid exists"
|
||||
def refute_has(view, testid) do
|
||||
refute has_element?(view, "[data-testid='#{testid}']")
|
||||
end
|
||||
end
|
||||
300
test/towerops/snmp/profiles/vendors/arista_test.exs
vendored
300
test/towerops/snmp/profiles/vendors/arista_test.exs
vendored
|
|
@ -94,4 +94,304 @@ defmodule Towerops.Snmp.Profiles.Vendors.AristaTest do
|
|||
assert sensors == []
|
||||
end
|
||||
end
|
||||
|
||||
describe "convert_dom_power_to_dbm/1" do
|
||||
test "converts DOM Rx Power from watts to dBm" do
|
||||
sensor = %{
|
||||
sensor_type: "power",
|
||||
sensor_descr: "DOM Rx Power",
|
||||
sensor_unit: "W",
|
||||
sensor_divisor: 1,
|
||||
last_value: 0.0005,
|
||||
metadata: %{}
|
||||
}
|
||||
|
||||
result = Arista.convert_dom_power_to_dbm(sensor)
|
||||
|
||||
assert result.sensor_type == "dbm"
|
||||
assert result.sensor_unit == "dBm"
|
||||
assert result.sensor_divisor == 1
|
||||
# 0.0005 watts = -3.010 dBm
|
||||
assert_in_delta result.last_value, -3.010, 0.001
|
||||
assert result.metadata.original_type == "power"
|
||||
assert result.metadata.original_value == 0.0005
|
||||
end
|
||||
|
||||
test "converts DOM Tx Power from watts to dBm" do
|
||||
sensor = %{
|
||||
sensor_type: "power",
|
||||
sensor_descr: "DOM Tx Power",
|
||||
sensor_unit: "W",
|
||||
last_value: 0.001,
|
||||
metadata: %{}
|
||||
}
|
||||
|
||||
result = Arista.convert_dom_power_to_dbm(sensor)
|
||||
|
||||
assert result.sensor_type == "dbm"
|
||||
# 0.001 watts = 0 dBm
|
||||
assert result.last_value == 0.0
|
||||
end
|
||||
|
||||
test "converts Xcvr Rx Power from watts to dBm" do
|
||||
sensor = %{
|
||||
sensor_type: "power",
|
||||
sensor_descr: "Xcvr Rx Power Sensor 1",
|
||||
last_value: 0.0001,
|
||||
metadata: %{}
|
||||
}
|
||||
|
||||
result = Arista.convert_dom_power_to_dbm(sensor)
|
||||
|
||||
assert result.sensor_type == "dbm"
|
||||
# 0.0001 watts = -10.0 dBm
|
||||
assert result.last_value == -10.0
|
||||
end
|
||||
|
||||
test "does not convert non-DOM power sensors" do
|
||||
sensor = %{
|
||||
sensor_type: "power",
|
||||
sensor_descr: "PSU1 Power",
|
||||
last_value: 150.0
|
||||
}
|
||||
|
||||
result = Arista.convert_dom_power_to_dbm(sensor)
|
||||
|
||||
assert result.sensor_type == "power"
|
||||
assert result.last_value == 150.0
|
||||
end
|
||||
|
||||
test "does not convert sensors with zero or negative values" do
|
||||
sensor = %{
|
||||
sensor_type: "power",
|
||||
sensor_descr: "DOM Rx Power",
|
||||
last_value: 0.0
|
||||
}
|
||||
|
||||
result = Arista.convert_dom_power_to_dbm(sensor)
|
||||
|
||||
# Should not convert 0 or negative values
|
||||
assert result.sensor_type == "power"
|
||||
assert result.last_value == 0.0
|
||||
end
|
||||
|
||||
test "handles case-insensitive matching" do
|
||||
sensor = %{
|
||||
sensor_type: "power",
|
||||
sensor_descr: "dom rx power",
|
||||
last_value: 0.0005,
|
||||
metadata: %{}
|
||||
}
|
||||
|
||||
result = Arista.convert_dom_power_to_dbm(sensor)
|
||||
|
||||
assert result.sensor_type == "dbm"
|
||||
end
|
||||
end
|
||||
|
||||
describe "apply_arista_thresholds/2" do
|
||||
test "applies thresholds from ARISTA-ENTITY-SENSOR-MIB" do
|
||||
sensors = [
|
||||
%{
|
||||
sensor_index: "1001",
|
||||
sensor_type: "temperature",
|
||||
sensor_descr: "Temp Sensor 1",
|
||||
last_value: 45.0
|
||||
}
|
||||
]
|
||||
|
||||
# Mock walking the Arista threshold table
|
||||
# Client.walk expects {:ok, list_of_maps_with_oid_and_value}
|
||||
expect(SnmpMock, :walk, fn _, "1.3.6.1.4.1.30065.3.3.1.1.1", _ ->
|
||||
{:ok,
|
||||
[
|
||||
# Low critical threshold (type 1)
|
||||
%{oid: "1.3.6.1.4.1.30065.3.3.1.1.1.1001.1", value: -10},
|
||||
# Low warning threshold (type 2)
|
||||
%{oid: "1.3.6.1.4.1.30065.3.3.1.1.1.1001.2", value: -5},
|
||||
# High warning threshold (type 3)
|
||||
%{oid: "1.3.6.1.4.1.30065.3.3.1.1.1.1001.3", value: 85},
|
||||
# High critical threshold (type 4)
|
||||
%{oid: "1.3.6.1.4.1.30065.3.3.1.1.1.1001.4", value: 95}
|
||||
]}
|
||||
end)
|
||||
|
||||
result = Arista.apply_arista_thresholds(sensors, @client_opts)
|
||||
|
||||
assert [sensor] = result
|
||||
assert sensor.low_limit == -10
|
||||
assert sensor.low_warn_limit == -5
|
||||
assert sensor.warn_limit == 85
|
||||
assert sensor.high_limit == 95
|
||||
end
|
||||
|
||||
test "converts thresholds for dBm sensors" do
|
||||
sensors = [
|
||||
%{
|
||||
sensor_index: "2001",
|
||||
sensor_type: "dbm",
|
||||
sensor_descr: "DOM Rx Power",
|
||||
last_value: -3.0
|
||||
}
|
||||
]
|
||||
|
||||
# Mock threshold in watts (needs conversion to dBm)
|
||||
expect(SnmpMock, :walk, fn _, _, _ ->
|
||||
{:ok,
|
||||
[
|
||||
# High warning: 0.002 watts = 3.01 dBm
|
||||
%{oid: "1.3.6.1.4.1.30065.3.3.1.1.1.2001.3", value: 0.002},
|
||||
# High critical: 0.003 watts = 4.77 dBm
|
||||
%{oid: "1.3.6.1.4.1.30065.3.3.1.1.1.2001.4", value: 0.003}
|
||||
]}
|
||||
end)
|
||||
|
||||
result = Arista.apply_arista_thresholds(sensors, @client_opts)
|
||||
|
||||
assert [sensor] = result
|
||||
assert_in_delta sensor.warn_limit, 3.01, 0.01
|
||||
assert_in_delta sensor.high_limit, 4.77, 0.01
|
||||
end
|
||||
|
||||
test "returns sensors unchanged when no thresholds available" do
|
||||
sensors = [
|
||||
%{sensor_index: "1001", sensor_type: "temperature", last_value: 45.0}
|
||||
]
|
||||
|
||||
expect(SnmpMock, :walk, fn _, _, _ ->
|
||||
{:ok, []}
|
||||
end)
|
||||
|
||||
result = Arista.apply_arista_thresholds(sensors, @client_opts)
|
||||
|
||||
assert result == sensors
|
||||
end
|
||||
|
||||
test "returns sensors unchanged when SNMP walk fails" do
|
||||
sensors = [
|
||||
%{sensor_index: "1001", sensor_type: "temperature", last_value: 45.0}
|
||||
]
|
||||
|
||||
expect(SnmpMock, :walk, fn _, _, _ ->
|
||||
{:error, :timeout}
|
||||
end)
|
||||
|
||||
result = Arista.apply_arista_thresholds(sensors, @client_opts)
|
||||
|
||||
assert result == sensors
|
||||
end
|
||||
end
|
||||
|
||||
describe "apply_smart_grouping/1" do
|
||||
test "groups SFP sensors" do
|
||||
sensor = %{sensor_descr: "DOM Rx Power Sensor 1"}
|
||||
result = Arista.apply_smart_grouping(sensor)
|
||||
assert result.sensor_group == "SFPs"
|
||||
end
|
||||
|
||||
test "groups Xcvr sensors" do
|
||||
sensor = %{sensor_descr: "Xcvr Temp Sensor 1"}
|
||||
result = Arista.apply_smart_grouping(sensor)
|
||||
assert result.sensor_group == "SFPs"
|
||||
end
|
||||
|
||||
test "groups power connector sensors" do
|
||||
sensor = %{sensor_descr: "PwrCon1 Temp"}
|
||||
result = Arista.apply_smart_grouping(sensor)
|
||||
assert result.sensor_group == "PwrCon1"
|
||||
end
|
||||
|
||||
test "groups PSU sensors" do
|
||||
sensor = %{sensor_descr: "PowerSupply1 Voltage"}
|
||||
result = Arista.apply_smart_grouping(sensor)
|
||||
assert result.sensor_group == "PSUs"
|
||||
end
|
||||
|
||||
test "groups platform chipset sensors" do
|
||||
sensor = %{sensor_descr: "Trident Temp Sensor"}
|
||||
result = Arista.apply_smart_grouping(sensor)
|
||||
assert result.sensor_group == "Platform"
|
||||
|
||||
sensor2 = %{sensor_descr: "Jericho Temperature"}
|
||||
result2 = Arista.apply_smart_grouping(sensor2)
|
||||
assert result2.sensor_group == "Platform"
|
||||
end
|
||||
|
||||
test "groups other sensors as System" do
|
||||
sensor = %{sensor_descr: "Ambient Temperature"}
|
||||
result = Arista.apply_smart_grouping(sensor)
|
||||
assert result.sensor_group == "System"
|
||||
end
|
||||
end
|
||||
|
||||
describe "cleanup_description/1" do
|
||||
test "removes trailing sensor text" do
|
||||
sensor = %{sensor_descr: "Temp Sensor 1 sensor"}
|
||||
result = Arista.cleanup_description(sensor)
|
||||
assert result.sensor_descr == "Temp Sensor 1"
|
||||
end
|
||||
|
||||
test "removes duplicate Sensor strings" do
|
||||
sensor = %{sensor_descr: "Sensor VoltageSensor1"}
|
||||
result = Arista.cleanup_description(sensor)
|
||||
assert result.sensor_descr == "Voltage1"
|
||||
end
|
||||
|
||||
test "simplifies PSU naming" do
|
||||
sensor = %{sensor_descr: "PowerSupply1/1 Sensor VoltageSensor1"}
|
||||
result = Arista.cleanup_description(sensor)
|
||||
# The regex removes "Sensor " and "Sensor1" but keeps "/1"
|
||||
# This is acceptable - main goal is removing duplicate "Sensor" text
|
||||
assert result.sensor_descr == "PowerSupply1/1 Voltage1"
|
||||
end
|
||||
|
||||
test "removes hotspot text" do
|
||||
sensor = %{sensor_descr: "Temp hotspot Sensor 1"}
|
||||
result = Arista.cleanup_description(sensor)
|
||||
assert result.sensor_descr == "Temp Sensor 1"
|
||||
end
|
||||
|
||||
test "cleans up whitespace" do
|
||||
sensor = %{sensor_descr: "Temp Sensor 1"}
|
||||
result = Arista.cleanup_description(sensor)
|
||||
assert result.sensor_descr == "Temp Sensor 1"
|
||||
end
|
||||
end
|
||||
|
||||
describe "post_process_sensors/2" do
|
||||
test "applies all enhancements in correct order" do
|
||||
sensors = [
|
||||
%{
|
||||
sensor_type: "power",
|
||||
sensor_descr: "DOM Rx Power sensor",
|
||||
sensor_index: "1001",
|
||||
last_value: 0.0005,
|
||||
metadata: %{}
|
||||
}
|
||||
]
|
||||
|
||||
# Mock threshold table
|
||||
expect(SnmpMock, :walk, fn _, _, _ ->
|
||||
{:ok,
|
||||
[
|
||||
%{oid: "1.3.6.1.4.1.30065.3.3.1.1.1.1001.3", value: 0.002},
|
||||
%{oid: "1.3.6.1.4.1.30065.3.3.1.1.1.1001.4", value: 0.003}
|
||||
]}
|
||||
end)
|
||||
|
||||
result = Arista.post_process_sensors(sensors, @client_opts)
|
||||
|
||||
assert [sensor] = result
|
||||
# DOM conversion applied
|
||||
assert sensor.sensor_type == "dbm"
|
||||
assert_in_delta sensor.last_value, -3.010, 0.001
|
||||
# Thresholds applied (converted to dBm)
|
||||
assert sensor.warn_limit
|
||||
assert sensor.high_limit
|
||||
# Grouping applied
|
||||
assert sensor.sensor_group == "SFPs"
|
||||
# Description cleaned
|
||||
assert sensor.sensor_descr == "DOM Rx Power"
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue