It’s difficult to measure the CPU utilization of processes isolated inside Docker Containers. The Librato Agent, however, makes it easy to collect and visualize system-level metrics from your dockerized application. Our in-house developed Docker plugin reads container metrics straight from the Docker Daemon, so you don’t need to modify your preexisting images in any way.

With Librato, Docker monitoring couldn’t be easier. Just use the integrations tab to set up the Librato Agent integration and then add a docker integration to it. You’ll then be guided through the steps you need to get up and running on your Docker hosts.

Once you have the agent installed and running, you’ll see data automatically begin to appear in your preconfigured Docker monitoring dashboard. A series of metrics specific to each of your containerized apps will help you spot performance problems and debug any inexplicable behavior occurring inside your process-isolated application.

The metrics exposed by the Docker daemon include per-container CPU utilization and throttling stats, Memory limits and utilization data, and Network utilization and error metrics. A detailed description of these metrics is available at the Docker runtime metrics page.