Migrate kube-proxy, coreDNS, and aws-vpc-cni to addon

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We need to migrate the infrastructure services, such as kube-proxy, coreDNS, and aws-vpc-cni, included in our EKS cluster deployment to addons. I'm having trouble finding sufficient information about the migration process. It seems like the migration will happen automatically when I deploy the new addon, but I want to confirm this. Could you please explain the process to me?

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Migrating infrastructure services like kube-proxy, CoreDNS, and aws-vpc-cni to Amazon EKS add-ons involves a few steps. Here's a general outline of the process:

  1. Check the current version of your services: Before you start the migration, you should check the current version of kube-proxy, CoreDNS, and aws-vpc-cni running in your cluster. This is important because the version of the add-on you are going to install should match the version of the component currently running in your cluster.
  2. Create the add-on: You can create an add-on using the AWS Management Console, AWS CLI, or one of the AWS SDKs. When you create the add-on, you specify the version of the component that the add-on should install. Make sure this matches the version currently running in your cluster.
  3. Verify the add-on status: After you create the add-on, you should verify its status. The status should be ACTIVE, which means that the add-on was successfully created and is running in your cluster.
  4. Delete the old component: Once the add-on is active, you can delete the old component from your cluster. Be careful with this step, as deleting the component will affect the operation of your cluster. You should ensure that the add-on is fully operational before you delete the old component.
  5. Update the add-on: After the migration, you can use the UpdateAddon operation to upgrade the version of the component installed by the add-on.

Please note that the exact steps and commands you need to run will depend on your specific setup and the version of the components you are using. You should refer to the Amazon EKS documentation and the documentation for each component for detailed instructions. Also, it's important to note that while the migration process is designed to be smooth, there can be issues and it's not always automatic. You should plan for potential downtime and thoroughly test the new setup before deleting the old components.

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