January 2019
Intermediate to advanced
484 pages
11h 48m
English
Content preview from DevOps with Kubernetes - Second Edition
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Upgrading worker nodes
After upgrading the Kubernetes master, you can start to upgrade the worker nodes. However, again, there's no AWS CLI support yet, so you need some manual steps to upgrade worker nodes:
- Create new worker nodes using the same steps as earlier using CloudFormation. However, here, you'll specify the new version of AMI, such as ami-0b4eb1d8782fc3aea. You can get an AMI ID list from the AWS documentation via https://docs.aws.amazon.com/eks/latest/userguide/eks-optimized-ami.html.
- Update a security group for both old and new worker nodes to allow network traffic between them. You can find a security group ID via the AWS CLI or AWS Web Console. For more details on this, please visit the AWS documentation: https://docs.aws.amazon.com/eks/latest/userguide/migrate-stack.html ...
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