Graham McIntire
51e068f3f1
Wire up prom_ex with built-in Application, Beam, Phoenix, PhoenixLiveView,
and Ecto plugins, plus a custom plugin that exposes the existing
app-specific telemetry (packet pipeline, spatial PubSub, repo pool,
postgres stats, insert optimizer) as Prometheus metrics.
Mount PromEx.Plug at /metrics — internal-only, intended to be scraped
by the cluster's external Prometheus through the kube-apiserver pod
proxy. K8s pod template now carries prometheus.io/{scrape,port,path}
annotations so the existing kubernetes-pods scrape job picks it up
automatically.
PromEx is disabled in the test environment.
Also harden the packet cleanup and partition manager tests with
Repo.delete_all setup hooks so they aren't poisoned by residual rows
committed outside a sandbox transaction in earlier runs (which were
inflating delete counts and triggering ATTACH PARTITION check_violation
errors against packets_default).
42 lines
1 KiB
Elixir
42 lines
1 KiB
Elixir
defmodule Aprsme.PromEx do
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@moduledoc """
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PromEx supervision module for the aprs.me application.
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Built-in plugins provide metrics for Phoenix, Phoenix LiveView, Ecto, the BEAM
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VM, and the Application/release. The custom `Aprsme.PromEx.Plugins.Aprsme`
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plugin exposes the app-specific telemetry events emitted by the GenStage
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packet pipeline, SpatialPubSub, and the periodic Postgres collectors.
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Metrics are scraped at `GET /metrics` on the Phoenix endpoint via
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`PromEx.Plug` (mounted in the router).
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"""
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use PromEx, otp_app: :aprsme
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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: AprsmeWeb.Router, endpoint: AprsmeWeb.Endpoint},
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Plugins.PhoenixLiveView,
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{Plugins.Ecto, otp_app: :aprsme, repos: [Aprsme.Repo]},
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Aprsme.PromEx.Plugins.Aprsme
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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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end
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end
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