Docker Container Count

Docker Container Count custom Troubleshoot Analyzer example

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Docker Container Count

Below is an example of an analyzer that will parse the output of the docker info command and display the number of containers running.

analyze:
  v1:
    - name: docker.containers.count
      labels:
        iconKey: docker_container
        desiredPosition: "3"
      insight:
        primary: '{{repl .runningContainers}}'
        detail: '{{repl .runningContainers}} containers running'
        severity: info
      registerVariables:
        - name: runningContainers
          fileMatch:
            pathRegexps:
              - /docker_info\.json
            regexpCapture:
              regexp: '"ContainersRunning": *([^",\n]+)'
              index: 1
      evaluateConditions:
        - condition:
            not:
              empty: {}
              variableRef: runningContainers
          insightOnFalse:
            primary: "?"
            detail: Could not determine number of running docker containers
            severity: warn
            labels:
              iconKey: no_docker