towerops/lib/towerops_web/endpoint.ex
Graham McIntire fd317770fe
Fix health check logging with dynamic log level in endpoint
Use Plug.Telemetry's dynamic log level feature to disable logging for
/health requests. This is the proper Phoenix way to exclude specific
endpoints from request logs.

- Add log_level/1 function to endpoint that returns false for /health
- Configure Plug.Telemetry to use dynamic log level
- Remove log: false from router (handled by endpoint now)

This prevents Kubernetes health probe spam in application logs.
2026-01-06 13:57:32 -06:00

62 lines
1.9 KiB
Elixir

defmodule ToweropsWeb.Endpoint do
use Phoenix.Endpoint, otp_app: :towerops
# The session will be stored in the cookie and signed,
# this means its contents can be read but not tampered with.
# Set :encryption_salt if you would also like to encrypt it.
@session_options [
store: :cookie,
key: "_towerops_key",
signing_salt: "hrDZxLhd",
same_site: "Lax"
]
socket "/live", Phoenix.LiveView.Socket,
websocket: [connect_info: [session: @session_options]],
longpoll: [connect_info: [session: @session_options]]
# Serve at "/" the static files from "priv/static" directory.
#
# When code reloading is disabled (e.g., in production),
# the `gzip` option is enabled to serve compressed
# static files generated by running `phx.digest`.
plug Plug.Static,
at: "/",
from: :towerops,
gzip: not code_reloading?,
only: ToweropsWeb.static_paths(),
raise_on_missing_only: code_reloading?
# Code reloading can be explicitly enabled under the
# :code_reloader configuration of your endpoint.
if code_reloading? do
socket "/phoenix/live_reload/socket", Phoenix.LiveReloader.Socket
plug Phoenix.LiveReloader
plug Phoenix.CodeReloader
plug Phoenix.Ecto.CheckRepoStatus, otp_app: :towerops
end
plug Phoenix.LiveDashboard.RequestLogger,
param_key: "request_logger",
cookie_key: "request_logger"
plug Plug.RequestId
plug Plug.Telemetry,
event_prefix: [:phoenix, :endpoint],
log: {__MODULE__, :log_level, []}
plug Plug.Parsers,
parsers: [:urlencoded, :multipart, :json],
pass: ["*/*"],
json_decoder: Phoenix.json_library()
plug Plug.MethodOverride
plug Plug.Head
plug Plug.Session, @session_options
plug ToweropsWeb.Router
# Disable logging for health check endpoint to reduce log noise from K8s probes
def log_level(%{path_info: ["health"]}), do: false
def log_level(_), do: :info
end