Change the Docker version

Question

I received a notification about an upcoming change to the Docker version 20.10 used in Amazon Linux 2. I have a cluster AWS EKS running with nodes on AL2, where docker containers are deployed. Do I need to take any action? Will the update cause interruptions to my services?

Parthasaradi Challa · Accepted Answer

Hi Slacker,

please try this solution it will be helpful for you.

To prepare for the upcoming Docker version 20.10 update in your AWS EKS cluster running Amazon Linux 2 nodes, you should follow a systematic approach to ensure minimal disruption and continued application stability. Begin by reviewing the AWS notification and Docker 20.10 release notes to understand the scope and impact of the update. Next, create a staging environment that mirrors your production setup, and update Docker in this environment to test your applications thoroughly.

Deploy your applications to the staging cluster and run comprehensive tests, including unit, integration, and load tests, to verify compatibility and performance. Once validated, plan the update for your production environment during a scheduled maintenance window to minimize user impact.

For managed node groups, update the node group to the latest Amazon EKS optimized AMI that includes Docker 20.10. For self-managed nodes, manually update Docker using package management commands, ensuring you drain and uncord on nodes one at a time to maintain service availability.

Monitor your applications closely using tools like AWS CloudWatch or Prometheus to track performance and health post-update. By carefully planning, testing, and executing the update, you can ensure a smooth transition to Docker 20.10 with minimal service interruptions.

please look at Documents you will get more information.

https://docs.docker.com/reference/cli/docker/service/update/

https://askubuntu.com/questions/472412/how-do-i-upgrade-docker

Thanniru Anil Kumar · Answer

**Review the Docker Version Change: **Understand the details of the Docker version change, including any new features, bug fixes, and potential compatibility issues. Docker version upgrades often include improvements and security patches, so it's important to stay informed about the changes.

**Compatibility with EKS**: Ensure that the new Docker version is compatible with AWS EKS. While AWS EKS is designed to work seamlessly with Docker, it's still recommended to check for any compatibility issues or known limitations.

**Test in Non-Production Environment:** Before applying the Docker version update to your production EKS cluster, consider testing it in a non-production environment. Create a test cluster with similar configurations and deploy your applications to verify compatibility and identify any issues proactively.

**Backup and Rollback Plan**: Always have a backup and rollback plan in place before making any changes to your production environment. Take snapshots of your EKS cluster, including both control plane and worker nodes, so that you can revert to the previous state if necessary.

**Monitor for Service Interruptions: **During the Docker version update, monitor your EKS cluster and applications closely for any service interruptions or performance issues. Use AWS CloudWatch metrics, EKS logs, and application monitoring tools to track the health and performance of your services.

**Communicate with Stakeholders:** Keep your team and stakeholders informed about the Docker version update and any planned maintenance windows. Communicate the potential impact on services and outline the steps you're taking to minimize disruptions.

[https://stackoverflow.com/questions/63279765/docker-how-to-update-your-container-when-your-code-changes]()

Change the Docker version

Add your answer

Relevant content