Update Dockerfile

[uniquePWD]

Fix warnings

Description:

Related issue (if applicable): refs #

Checklist

• [ ] The code change is tested and works locally.
• [ ] There is no commented out code in this PR.
• [ ] No lint errors (use flake8)
• [ ] Tests added

[caronc]

Closing in favor of #198 which was inspired by some of your key changes here. Thank you very much for submitting this.