Docker Engine monitoring with Netdata

Docker Engine is the industry’s de facto container runtime that runs on various Linux (CentOS, Debian, Fedora, Oracle Linux, RHEL, SUSE, and Ubuntu) and Windows Server operating systems.

This module will monitor one or more Docker Engines applications, depending on your configuration.

Requirements

• Docker with enabled metric-address

Charts

It produces the following charts:

• Container Actions in actions/s
• Container States in containers
• Builder Builds Fails By Reason in fails/s
• Health Checks in events/s

If Docker is running in in Swarm mode and the instance is a Swarm manager:

• Swarm Manager Leader in bool
• Swarm Manager Object Store in count
• Swarm Manager Nodes Per State in count
• Swarm Manager Tasks Per State in count

Configuration

Edit the go.d/docker_engine.conf configuration file using edit-config from the Netdata config directory, which is typically at /etc/netdata.

cd /etc/netdata # Replace this path with your Netdata config directory
sudo ./edit-config go.d/docker_engine.conf

Needs only url to docker metric-address. Here is an example for 2 docker instances:

jobs:
  - name: local
    url: http://127.0.0.1:9323/metrics

  - name: remote
    url: http://203.0.113.10:9323/metrics

For all available options, please see the module's configuration file.

Troubleshooting

To troubleshoot issues with the docker_engine collector, run the go.d.plugin with the debug option enabled. The output should give you clues as to why the collector isn't working.

First, navigate to your plugins directory, usually at /usr/libexec/netdata/plugins.d/. If that's not the case on your system, open netdata.conf and look for the setting plugins directory. Once you're in the plugin's directory, switch to the netdata user.

cd /usr/libexec/netdata/plugins.d/
sudo -u netdata -s

You can now run the go.d.plugin to debug the collector:

./go.d.plugin -d -m docker_engine