joeyfeldberg/prometheus-cowboy

Expose Prometheus metrics using cowboy/cowboy2

prometheus_cowboy

Copyright (c) 2017 Ilya Khaprov <[email protected]>.

Version: 0.1.4

Exporting metrics with handlers

Cowboy 1:

Routes = [
          {'_', [
                 {"/metrics/[:registry]", prometheus_cowboy1_handler, []},
                 {"/", toppage_handler, []}
                ]}
         ]

Cowboy 2:

Routes = [
          {'_', [
                 {"/metrics/[:registry]", prometheus_cowboy2_handler, []},
                 {"/", toppage_handler, []}
                ]}
         ]

Exporting Cowboy2 metrics

  {ok, _} = cowboy:start_clear(http, [{port, 0}],
                               #{env => #{dispatch => Dispatch},
                                 metrics_callback => fun prometheus_cowboy2_instrumenter:observe/1,
                                 stream_handlers => [cowboy_metrics_h, cowboy_stream_h]})

Contributing

Section order:

• Types
• Macros
• Callbacks
• Public API
• Deprecations
• Private Parts

Install the git pre-commit hook:

./bin/pre-commit.sh install

The pre-commit check can be skipped by passing --no-verify to git commit.

License

MIT

Modules

prometheus_cowboy

prometheus_cowboy1_handler

prometheus_cowboy2_handler

prometheus_cowboy2_instrumenter