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

Troubleshooting containers 3(Docker and Kubernetes-02.png

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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

**(Fill in the blank.)** Network drivers are components that provide networking capabilities between ________.

(Fill in the blank.) Network drivers are components that provide networking capabilities between ________.

`docker network inspect --format='{{ index .Options "com.docker.network.driver.mtu" }}'` `<network_name>`

`docker network inspect --format='{{ index .Options "com.docker.network.driver.mtu" }}'` `<container_name>`

`docker network inspect --format='{{ index .Options "com.docker.network.driver.mtu" }}'` `<bridge_name>`

`docker network inspect --format='{{ index .Options "com.docker.network.driver.mtu" }}'` `<port_number>`

Which command can we use to retrieve the `mtu` value of a bridge?

Which command can we use to retrieve the <code>mtu</code> value of a bridge?

Which command below can be used to check the list of all the ports in our environment?

Which command below can be used to check the list of all the ports in our environment?

What enables applications and services to communicate with each other using human-readable domain names?

What enables applications and services to communicate with each other using human-readable domain names?

Which command enables us to use various networking commands within our container?


Which command enables us to use various networking commands within our container?

**(Fill in the blank.)** ________ occurs when the specified network name or ID in the Docker command or configuration doesn’t match any existing network.


(Fill in the blank.) ________ occurs when the specified network name or ID in the Docker command or configuration doesn’t match any existing network.

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: Resolving Docker Container Network Errors