feat: DBTP-1503 - Terraform codebase pipelines

[JohnStainsby]

Terraform pipelines based on the platform-config.yml. Each pipeline has a codebuild job to create deploy manifests and deploy actions for each service. The deploy order is set by run groups in the config.

Example section from platform-config.yml:

codebase_pipelines:
  - name: test
    repository: uktrade/demodjango
    services:
      - run_group_1:
        - web
      - run_group_2:
        - api
        - celery-worker
        - celery-beat
    pipelines:
      - name: main
        branch: main
        environments:
          - name: dev

Created pipeline:

Addresses most of https://uktrade.atlassian.net/browse/DBTP-1503.
Manual release pipeline and prod trigger pipeline will be separate PRs.

[WillGibson]

A first pass. Brain is a bit too Friday afternoon for this many lines!

Have you been pairing on this? I'm wondering how deep I need to get into it to review it.

[JohnStainsby]

@WillGibson

A first pass. Brain is a bit too Friday afternoon for this many lines!

Have you been pairing on this? I'm wondering how deep I need to get into it to review it.

Yes, @james-francis-MT and I have been pairing on most of this. We've split some of it off into different PRs, but yeah it's big

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (3937e53) to head (08d03a6).
Report is 1 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #276   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines           50        50           
=========================================
  Hits            50        50           

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[ejayesh]

terraform code lgtm, looking forward to this going in.