This course gives a clear insight into how to handle issues in containerized environments for both Docker and Kubernetes.

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Troubleshoot

Containers help applications easily be packaged and shipped to any environment. Two of the most popular container tools are Docker and Kubernetes. Depending on their utilization, containers can experience image build, pods and node failures, and communication issues. This course will help you learn how to handle those issues.

This course teaches you what containers are and why they were adopted. You’ll explore Docker images, review log files in Docker, inspect containers, and clean resources while learning to fix issues with Docker image builds and resolving Docker container network errors. Then, you’ll get an overview of Kubernetes, how to manage a cluster and resolve reliability issues, and how to fix pod, network, container, configuration, and ingress issues. Finally, you’ll create a robust container infrastructure.

By the end of this course, you’ll also have a strong grasp on approaching and handling container issues and troubleshooting various issues in Docker and Kubernetes.

Troubleshooting Docker and Kubernetes Containers

Which key allows us to define custom networks for our services in a Docker Compose YAML file?

Which key allows us to define custom networks for our services in a Docker Compose YAML file?

What’s *not* something we need to focus on when accessing an image?

What’s not something we need to focus on when accessing an image?


What’s *not* a guide to consider in formatting errors?

What’s not a guide to consider in formatting errors?

**(Fill in the blank.)** We use the `docker-compose start <service_name>` command to ________.

(Fill in the blank.) We use the <code>docker-compose start &lt;service_name&gt;</code> command to ________.

What can we *not* use to avoid building large images?

What can we not use to avoid building large images?

Which exit code means that the container exited because the command wasn’t found?

Which exit code means that the container exited because the command wasn’t found?

Test yourself on what you’ve learned so far in this chapter.

Getting Started

Introducing Troubleshooting Containers

Troubleshooting Docker

Fixing Common Issues with Docker

Resolving Docker Container Networking Errors

Troubleshooting Kubernetes

Troubleshooting Further in Kubernetes

Troubleshooting Docker Image Build Issues

Conclusion

Quiz: Fixing Common Issues with Docker