observability/roles/cadvisor

finallycoffee.observability.cadvisor ansible role

Overview

Deploys cadvisor, a daemon for collecting and exporting information about running (docker) containers in a docker container.

Configuration

In order to scrape /metrics of running containers, it is recommended to expose the default port of cadvisor to the host using

cadvisor_container_ports:
  - "127.0.0.1:8080:8080`

so that cadvisor metrics are exposed at http://127.0.0.1:8080/metrics.

Enabling/Disabling collection of metrics

By setting cadvisor_disabled_metrics, the collection of metrics can be disabled. The default list of disabled metrics is quite extensive, so when enabling a disabled-by-default metric, it is recommended to use cadvisor_force_enable_metrics instead, as it's empty by default.