Docker module

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This module fetches metrics from Docker containers. The default metricsets are: container, cpu, diskio, healthcheck, info, memory and network. The image metricset is not enabled by default.

Compatibility

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The Docker module is currently tested on Linux and Mac with the community edition engine, versions 1.11 and 17.09.0-ce. It is not tested on Windows, but it should also work there.

Module-specific configuration notes

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It is strongly recommended that you run Docker metricsets with a period that is 3 seconds or longer. The request to the Docker API already takes up to 2 seconds. Specifying less than 3 seconds will result in requests that timeout, and no data will be reported for those requests.

Example configuration

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The Docker module supports the standard configuration options that are described in Modules. Here is an example configuration:

metricbeat.modules:
- module: docker
  metricsets:
    - "container"
    - "cpu"
    - "diskio"
    - "event"
    - "healthcheck"
    - "info"
    #- "image"
    - "memory"
    - "network"
  hosts: ["unix:///var/run/docker.sock"]
  period: 10s
  enabled: true

  # If set to true, replace dots in labels with `_`.
  #labels.dedot: false

  # If set to true, collects metrics per core.
  #cpu.cores: true

  # To connect to Docker over TLS you must specify a client and CA certificate.
  #ssl:
    #certificate_authority: "/etc/pki/root/ca.pem"
    #certificate:           "/etc/pki/client/cert.pem"
    #key:                   "/etc/pki/client/cert.key"

This module supports TLS connections when using ssl config field, as described in SSL.

Metricsets

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The following metricsets are available: