updated dockerfile generator to build index images from scratch

[skattoju]

Signed-off-by: Sid Kattoju [email protected]

Description of the change:
Fix for #765

Motivation for the change:
Index image is being built from an alpine base instead of from scratch. This became an issue because some vulnerabilities were found in the base alpine image and resulted in things not passing the certification pipeline.

Reviewer Checklist

• Implementation matches the proposed design, or proposal is updated to match implementation
• Sufficient unit test coverage
• Sufficient end-to-end test coverage
• Docs updated or added to /docs
• Commit messages sensible and descriptive

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: skattoju
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[openshift-ci]

Hi @skattoju. Thanks for your PR.

I'm waiting for a operator-framework member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[joelanford]

/hold
This will break existing users that depend on a shell being present in the image.

[skattoju]

Issue #765 will be addressed by #762