Graham McIntire
50324c61ce
Add PromEx with Application/BEAM/Phoenix/LiveView/Ecto/Oban plugins plus a custom plugin that bridges existing Towerops Oban/Redis telemetry events. The metrics HTTP server runs isolated on port 9568 so scrape traffic never traverses the public Traefik IngressRoute. The pod template carries prometheus.io annotations (scrape, port, path, job) so the external Prometheus on 10.0.15.31 discovers each pod through the existing kubernetes-pods scrape job (apiserver-proxy).
48 lines
1.2 KiB
Elixir
48 lines
1.2 KiB
Elixir
defmodule Towerops.PromEx do
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@moduledoc """
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PromEx supervisor that aggregates Phoenix, Ecto, Oban, BEAM, and custom Towerops
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telemetry into Prometheus metrics.
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The metrics endpoint runs on its own HTTP server (port 9568 by default, configured
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in `config/runtime.exs`) so scrape traffic never traverses the public Traefik
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IngressRoute. The Kubernetes Service is annotated with `prometheus.io/scrape`
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for auto-discovery by the home-cluster Prometheus.
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"""
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use PromEx, otp_app: :towerops
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alias PromEx.Plugins
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@impl true
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def plugins do
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[
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Plugins.Application,
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Plugins.Beam,
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{Plugins.Phoenix, router: ToweropsWeb.Router, endpoint: ToweropsWeb.Endpoint},
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Plugins.PhoenixLiveView,
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Plugins.Ecto,
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Plugins.Oban,
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Towerops.PromEx.TowerOpsMetrics
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]
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end
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@impl true
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def dashboard_assigns do
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[
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datasource_id: "Prometheus",
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default_selected_interval: "30s"
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]
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end
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@impl true
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def dashboards do
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[
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{:prom_ex, "application.json"},
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{:prom_ex, "beam.json"},
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{:prom_ex, "phoenix.json"},
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{:prom_ex, "phoenix_live_view.json"},
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{:prom_ex, "ecto.json"},
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{:prom_ex, "oban.json"}
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]
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end
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end
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