Carsten
579d7fc6e8
Returns 200 with {status: ok, version, db: ok} when SQLite is reachable,
503 when the DB probe fails. Unauthenticated so external monitors can
poll without credentials.
35 lines
816 B
Elixir
35 lines
816 B
Elixir
defmodule ServerWeb.HealthController do
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use ServerWeb, :controller
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@moduledoc """
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Public health check for uptime monitors.
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Returns 200 when the process is up AND SQLite is reachable, 503 otherwise.
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"""
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def show(conn, _params) do
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case probe_db() do
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:ok ->
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json(conn, %{
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status: "ok",
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version: Application.spec(:server, :vsn) |> to_string(),
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db: "ok"
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})
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{:error, reason} ->
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conn
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|> put_status(:service_unavailable)
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|> json(%{status: "degraded", db: "error", reason: inspect(reason)})
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end
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end
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defp probe_db do
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try do
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case Ecto.Adapters.SQL.query(Server.Repo, "SELECT 1", []) do
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{:ok, _} -> :ok
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{:error, e} -> {:error, e}
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end
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rescue
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e -> {:error, e}
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end
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end
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end
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