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Docker Daemon Monitoring with Prometheus

Prometheus is capable of monitoring a wide variety of systems and infrastructures, including Docker. In this lab, you will have the opportunity to set up Prometheus to monitor a Docker daemon. This will give you some hands-on experience with the process of monitoring Docker daemons with Prometheus.

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Path Info

Clock icon Intermediate
Clock icon 45m
Clock icon Jun 12, 2020

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Table of Contents

  1. Challenge

    Configure the Docker Daemon to Serve Prometheus Metrics

    1. Log in to the Docker server.

    2. Edit the Docker config file:

      sudo vi /etc/docker/daemon.json
    3. Add configuration to enable experimental mode and set the metrics address:

        "experimental": true,
        "metrics-addr": ""
    4. Restart Docker to load the new configuration:

      sudo systemctl restart docker
    5. Verify Docker is serving Prometheus metrics:

  2. Challenge

    Configure Prometheus to Scrape Docker Metrics

    1. Log in to the Prometheus server.

    2. Edit the Prometheus config:

      sudo vi /etc/prometheus/prometheus.yml
    3. Under the scrape_configs section, add a scrape configuration for Docker:

      - job_name: 'Docker'
        - targets: ['limedrop-docker:9323']
    4. Restart Prometheus to load the new configuration:

      sudo systemctl restart prometheus
    5. Use the expression browser to verify you can see Docker metrics in Prometheus. You can access the expression browser in a web browser at http://<PROMETHEUS_SERVER_PUBLIC_IP>:9090.

    6. Run a query to view some Docker metric data:


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