[Build Image] Add user-data.sh for Parallelcluster build image

[himani2411]

Description of changes

• Add user-data.sh for Parallelcluster build image

cloud-config updates kernel packages but not the kernel binary itself

[root@ip-172-31-72-225 ~]# cat /var/log/cloud-init.log | grep yum

Mar 27 14:46:21 cloud-init[2666]: handlers.py[DEBUG]: finish: modules-config/config-yum-add-repo: SUCCESS: config-yum-add-repo ran successfully
Mar 27 14:46:21 cloud-init[2666]: util.py[DEBUG]: Running command ['yum', '-t', '-y', '--exclude=kernel', '--exclude=nvidia*', '--exclude=cuda*', '--security', '--sec-severity=critical', '--sec-severity=important', 'upgrade'] with allowed return codes [0] (shell=False, capture=False)

Tests

Build Image using

DevSettings:
  DisableUserData: false

References

• Link to impacted open issues.
• Link to related PRs in other packages (i.e. cookbook, node).
• Link to documentation useful to understand the changes.

Checklist

• Make sure you are pointing to the right branch.
• If you're creating a patch for a branch other than develop add the branch name as prefix in the PR title (e.g. [release-3.6]).
• Check all commits' messages are clear, describing what and why vs how.
• Make sure to have added unit tests or integration tests to cover the new/modified code.
• Check if documentation is impacted by this change.

Please review the guidelines for contributing and Pull Request Instructions.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[hanwen-cluster]

This name doesn't seem to reflect the actual functionality.

Moreover, why is it necessary to have a separate parameter? This improvement could be added as the default behavior, right?