Implements a hierarchical SNMP community configuration system where settings
can be defined at the organization level (global default), overridden at the
site level, or overridden at the equipment level.
Changes:
- Migration: Add snmp_version and snmp_community to organizations and sites
- Organization schema: Add SNMP fields with default version "2c"
- Site schema: Add SNMP fields that override organization defaults
- Equipment context: Add get_snmp_config/1 with hierarchical fallback logic
- Discovery: Use Equipment.get_snmp_config instead of equipment.snmp_community
- PollerWorker: Use Equipment.get_snmp_config instead of equipment.snmp_community
The fallback order is:
1. Equipment-level (highest priority)
2. Site-level
3. Organization-level (default)
All 785 tests passing.
Add three-level agent assignment hierarchy (Equipment > Site > Organization)
allowing flexible agent deployment strategies. Agents now receive only equipment
assigned to them through direct assignment or inheritance from site/organization
defaults.
Key changes:
- Add agent_token_id to Sites table with migration
- Implement get_effective_agent_token/1 for hierarchical resolution
- Add list_agent_polling_targets/1 to return polling targets per agent
- Update API config endpoint to use hierarchical polling targets
- Add agent assignment UI to equipment, site, and organization forms
- Show agent source (direct/site/org/none) in equipment form
- Add equipment count column to agent list
- Update terminology from "poll from server" to "cloud polling"
Tests:
- Add 8 comprehensive tests for list_agent_polling_targets/1
- Add end-to-end test for hierarchical config endpoint
- All 775 tests passing
- Sites schema with hierarchical parent-child relationships
- CRUD operations for sites
- Sites context with helper functions
- LiveView pages:
- /orgs/:slug/sites - List all sites
- /orgs/:slug/sites/new - Create new site
- /orgs/:slug/sites/:id - View site details
- /orgs/:slug/sites/:id/edit - Edit site
- Support for site locations and descriptions
- Site tree builder for hierarchy visualization
2. Equipment Management
- Equipment schema with monitoring fields
- IP address validation (IPv4 & IPv6)
- Equipment status tracking (up/down/unknown)
- Customizable check intervals per equipment
- Equipment context with CRUD operations
- LiveView pages:
- /orgs/:slug/equipment - List all equipment
- /orgs/:slug/equipment/new - Add equipment
- /orgs/:slug/equipment/:id - View equipment details
- /orgs/:slug/equipment/:id/edit - Edit equipment
- Equipment can be added from site pages
- Status badges and last checked timestamps
3. Database Schema
- sites table with self-referencing parent_site_id
- equipment table with status tracking
- All migrations run successfully
- Proper indexes on foreign keys and status
4. Features Implemented
- ✅ IP address validation using :inet.parse_address
- ✅ Site hierarchy with parent-child relationships
- ✅ Equipment linked to sites
- ✅ Monitoring enabled/disabled per equipment
- ✅ Customizable check intervals (30s - 3600s)
- ✅ Status tracking (up/down/unknown)
- ✅ Timestamps for last check and last status change
- ✅ Organization-scoped data (users only see their org's data)
