Remove sudo from bootstrap commands

[zhuoweilee]

Issue #, if available:

Description of changes:

sudo commands are removed from the bootstrap script.

This helps to resolve the issue outlined in this article which describes a permission issue with sudo commands in cloud_init scripts that results in a timeout when SELinux is enabled. This leads to extended bootstrap times (+25 sec per sudo). Before this pull request, customers that enable SELinux would have to either add an SELinux policy module or remove sudo commands from the bootstrap script to prevent timeout.

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[cartermckinnon]

I think we should add an assertion to the start of the script that it's being run as `root, something like:

if [ "${EUID}" -ne 0 ]; then
  log "ERROR: must be run as root"
  exit 1
fi

[cartermckinnon]

/ci
+workflow:os_distros al2

[github-actions]

@cartermckinnon roger that! I've dispatched a workflow. 👍

[github-actions]

@cartermckinnon the workflow that you requested has completed. 🎉

AMI variant	Build	Test
1.21 / al2	success ✅	success ✅
1.22 / al2	success ✅	success ✅
1.23 / al2	success ✅	success ✅
1.24 / al2	success ✅	success ✅
1.25 / al2	success ✅	success ✅
1.26 / al2	success ✅	success ✅
1.27 / al2	success ✅	success ✅
1.28 / al2	success ✅	success ✅
1.29 / al2	success ✅	success ✅
1.30 / al2	failure ❌	skipped ⏭️

[cartermckinnon]

This LGTM, I'm getting another set of eyes on it.

EC2 docs also suggest not using sudo in userdata:

Scripts entered as user data are run as the root user, so do not use the sudo command in the script.

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/user-data.html