Missing information on `CLUSTER_ID` in EKS Documentation for outposts/eks-outposts-self-managed-nodes.adoc

[ad1mohan]

Issue:

The documentation Create Amazon Linux nodes on AWS Outposts contains steps to create self-managed Linux nodes for an EKS cluster on AWS Outposts using AWS Management Console. However, there seems to be missing information regarding the CLUSTER_ID parameter required in the BootstrapArguments section.

Steps to Reproduce:

1. Navigate to the section Launch self-managed Linux nodes using AWS Management Console.
2. Scroll to step 5 under BootstrapArguments.

3. The snippet provided for BootstrapArguments is as follows:

--b64-cluster-ca ${CLUSTER_CA} --apiserver-endpoint https://${APISERVER_ENDPOINT} --enable-local-outpost true --cluster-id ${CLUSTER_ID}

4. Notice that the document does not provide guidance on where to retrieve the value of ${CLUSTER_ID}.

Problem:

The snippet mentions the --cluster-id parameter but does not explain how or where to obtain the value for ${CLUSTER_ID}. This information is critical for users attempting to configure self-managed nodes correctly. Without this detail, the documentation is incomplete and may lead to user confusion or misconfiguration.

Suggested Fix:

1. Include specific instructions or a link to another section of the documentation that explains how to retrieve the CLUSTER_ID and other required values of bootstrap arguments.

Additional Context:

This improvement will help streamline the user experience and reduce potential errors during the setup of self-managed Linux nodes on AWS Outposts.