Clean up docker build

[sanders41]

Purpose

Clean up the docker file to make a smaller production image.

Changes

• Add files to .dockerignore

Checklist

• Update CHANGELOG.md file
  • Merge in main so the most recent CHANGELOG.md file is being appended to
  • Add description within the Unreleased section in an appropriate category. Add a new category from the list at the top of the file if the needed one isn't already there.
  • Add a link to this PR at the end of the description with the PR number as the text. example: #1
• Applicable documentation updated (guides, quickstart, postman collections, tutorial, fidesdemo, database diagram.
• If docs updated (select one):
  • documentation complete, or draft/outline provided (tag docs-team to complete/review on this branch)
  • documentation issue created (tag docs-team to complete issue separately)
• Good unit test/integration test coverage
• This PR contains a DB migration. If checked, the reviewer should confirm with the author that the down_revision correctly references the previous migration before merging
• The Run Unsafe PR Checks label has been applied, and checks have passed, if this PR touches any external services

Ticket

Fixes #1239

[sanders41]

If you try to run the production image without a fidesops.toml file it will try to load everything from environment variables. Currently you get the message fidesops.toml or fidesctl.toml or fides.toml could not be loaded so it is not obvious that is what is happening. I plan to update the message in fideslib to fidesops.toml or fidesctl.toml or fides.toml could not be loaded. Trying to load from environment variables. to make it more clear.

[sanders41]

CI tests are using a production build so it doesn't include a fidesops.toml file and fails. I'll have to find a work around for that.

[NevilleS]

Good- I'm glad the CI tests are now failing @sanders41 as that means we can truly configure it from CI (with GitHub secrets) 👍