Book Image

The Docker Workshop

By : Vincent Sesto, Onur Yılmaz, Sathsara Sarathchandra, Aric Renzo, Engy Fouda
5 (3)
Book Image

The Docker Workshop

5 (3)
By: Vincent Sesto, Onur Yılmaz, Sathsara Sarathchandra, Aric Renzo, Engy Fouda

Overview of this book

No doubt Docker Containers are the future of highly-scalable software systems and have cost and runtime efficient supporting infrastructure. But learning it might look complex as it comes with many technicalities. This is where The Docker Workshop will help you. Through this workshop, you’ll quickly learn how to work with containers and Docker with the help of practical activities.? The workshop starts with Docker containers, enabling you to understand how it works. You’ll run third party Docker images and also create your own images using Dockerfiles and multi-stage Dockerfiles. Next, you’ll create environments for Docker images, and expedite your deployment and testing process with Continuous Integration. Moving ahead, you’ll tap into interesting topics and learn how to implement production-ready environments using Docker Swarm. You’ll also apply best practices to secure Docker images and to ensure that production environments are running at maximum capacity. Towards the end, you’ll gather skills to successfully move Docker from development to testing, and then into production. While doing so, you’ll learn how to troubleshoot issues, clear up resource bottlenecks and optimize the performance of services. By the end of this workshop, you’ll be able to utilize Docker containers in real-world use cases.
Table of Contents (17 chapters)
Preface

13. Monitoring Docker Metrics

Activity 13.01: Creating a Grafana Dashboard to Monitor System Memory

Solution:

There are a number of ways in which you can perform this activity. The following steps are one such method:

  1. Make sure that Prometheus is running and collecting data, Docker and cAdvisor are configured to expose metrics, and Grafana is running and configured with Prometheus as a data source.
  2. Open the Grafana web interface and the Container Monitoring dashboard you created in Exercise 13.05: Installing and Running Grafana on Your System
  3. There is an Add panel option at the top of the dashboard and to the right of the dashboard name. Click the Add panel icon to add in your new dashboard panel:

    Figure 13.26: Adding a new panel to the container monitoring dashboard

  4. Select Prometheus from the drop-down list as the data source we will be using to produce the new dashboard panel.
  5. In the metrics section, add the following PromQL query, container_memory_usage_bytes...