Use common csm-base-image.

[donatwork]

Description

Use the common csm-base-image instead of always building a local base image. The benefit is that it will now be possible to build images on non RHEL VMs and as a non root user.

GitHub Issues

List the GitHub issues impacted by this PR:

GitHub Issue #
dell/csm#1691

Checklist:

• I have performed a self-review of my own code to ensure there are no formatting, vetting, linting, or security issues
• I have verified that new and existing unit tests pass locally with my changes
• I have not allowed coverage numbers to degenerate
• I have maintained at least 90% code coverage
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• Backward compatibility is not broken

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Please also list any relevant details for your test configuration

• Built image and ran image to validate that the program will start up and run. Not able to perform e2e due to lack of ObjectScale environment.

Special Notes For Your Reviewer:

Please describe the parts of code reviewers should focus on.

Additional documentation

• Enhancement proposals
• Usage documentation

[santhoshatdell]

@donatwork
"csm-base-image:nightly" - Where is this built and pushed to quay.io on a regular basis?

[donatwork]

@donatwork "csm-base-image:nightly" - Where is this built and pushed to quay.io on a regular basis?

It is built in the nightly TechOps pipeline. It's the first image that is built, tagged, and pushed.