Graham McIntire
d431db37bb
Monitoring Infrastructure:
- lib/towerops/monitoring/ping.ex - OS-agnostic ping functionality that works on macOS, Linux, and Windows
- lib/towerops/monitoring/equipment_monitor.ex - GenServer that monitors individual equipment at configurable intervals
- lib/towerops/monitoring/supervisor.ex - DynamicSupervisor with Registry for managing monitor workers
- lib/towerops/monitoring.ex - Context for creating and querying monitoring checks
Database:
- monitoring_checks table stores historical ping results with status, response time, and timestamps
- Indexed on (equipment_id, checked_at) for efficient querying
Real-Time Updates:
- PubSub broadcasting on equipment:#{id} topic when status changes
- Equipment show page subscribes to updates and refreshes automatically
- Manual "Check Now" button to trigger immediate checks
Application Integration:
- Monitoring.Supervisor added to application supervision tree
- All monitored equipment starts monitoring automatically on app startup
- Recent checks displayed in Equipment show page
How It Works
1. On application start, a monitor GenServer is spawned for each equipment with monitoring_enabled: true
2. Each monitor pings its equipment at the configured interval (default 5 minutes)
3. Results are saved to monitoring_checks table
4. Equipment status is updated if it changes (up ↔ down)
5. Status changes are broadcast via PubSub to all connected LiveViews
6. The Equipment show page updates in real-time when status changes
36 lines
1.1 KiB
Elixir
36 lines
1.1 KiB
Elixir
defmodule Towerops.Application do
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# See https://hexdocs.pm/elixir/Application.html
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# for more information on OTP Applications
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@moduledoc false
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use Application
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@impl true
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def start(_type, _args) do
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children = [
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ToweropsWeb.Telemetry,
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Towerops.Repo,
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{DNSCluster, query: Application.get_env(:towerops, :dns_cluster_query) || :ignore},
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{Phoenix.PubSub, name: Towerops.PubSub},
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# Start monitoring supervisor
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Towerops.Monitoring.Supervisor,
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# Start a worker by calling: Towerops.Worker.start_link(arg)
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# {Towerops.Worker, arg},
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# Start to serve requests, typically the last entry
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ToweropsWeb.Endpoint
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]
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# See https://hexdocs.pm/elixir/Supervisor.html
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# for other strategies and supported options
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opts = [strategy: :one_for_one, name: Towerops.Supervisor]
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Supervisor.start_link(children, opts)
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end
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# Tell Phoenix to update the endpoint configuration
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# whenever the application is updated.
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@impl true
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def config_change(changed, _new, removed) do
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ToweropsWeb.Endpoint.config_change(changed, removed)
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:ok
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end
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end
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