01805dbf39
- Add configuration system (config/*.exs, OrgGarden.Config) - Refactor supervision tree with DynamicSupervisor and Registry - Add OrgGarden.Server for serve mode lifecycle management - Add health check HTTP endpoints (Bandit/Plug on :9090) - Add telemetry events for export and watcher operations - Implement graceful shutdown with SIGTERM handling - Add Mix Release support with overlay scripts - Add NixOS module for systemd service deployment - Update documentation with service usage
90 lines
2.1 KiB
Elixir
90 lines
2.1 KiB
Elixir
defmodule OrgGarden.Health do
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@moduledoc """
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Health check HTTP endpoints.
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Provides liveness and readiness probes for systemd/kubernetes health checks.
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## Endpoints
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* `GET /health/live` — Always returns 200 if the process is alive
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* `GET /health/ready` — Returns 200 if all components are ready, 503 otherwise
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* `GET /health` — Returns JSON status of all components
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"""
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use Plug.Router
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plug(:match)
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plug(:dispatch)
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# Liveness probe — is the process alive?
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get "/health/live" do
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send_resp(conn, 200, "ok")
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end
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# Readiness probe — are all components ready to serve?
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get "/health/ready" do
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checks = run_checks()
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all_healthy = Enum.all?(checks, fn {_name, status} -> status == :ok end)
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if all_healthy do
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send_resp(conn, 200, "ready")
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else
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send_resp(conn, 503, "not ready")
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end
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end
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# Full health status as JSON
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get "/health" do
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checks = run_checks()
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all_healthy = Enum.all?(checks, fn {_name, status} -> status == :ok end)
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status =
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if all_healthy do
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"healthy"
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else
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"degraded"
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end
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body =
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Jason.encode!(%{
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status: status,
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checks:
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Map.new(checks, fn {name, status} ->
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{name, Atom.to_string(status)}
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end)
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})
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conn
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|> put_resp_content_type("application/json")
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|> send_resp(if(all_healthy, do: 200, else: 503), body)
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end
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match _ do
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send_resp(conn, 404, "not found")
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end
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# -------------------------------------------------------------------
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# Health checks
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# -------------------------------------------------------------------
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defp run_checks do
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[
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{:server, check_server()},
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{:watcher, check_watcher()},
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{:quartz, check_quartz()}
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]
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end
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defp check_server do
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if Process.whereis(OrgGarden.Server), do: :ok, else: :not_running
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end
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defp check_watcher do
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if Process.whereis(OrgGarden.Watcher), do: :ok, else: :not_running
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end
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defp check_quartz do
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if Process.whereis(OrgGarden.Quartz), do: :ok, else: :not_running
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end
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end
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