feat(cost export backfill)

[wozzer72]

Introduced:

• backfill_start_date module parameter
  • updated README (terraform-docs)
  • updated examples
• removed terraform resource to create backfill cost export tasks
• modified function
  • introduce a backfill timer - runs both carbon export and cost export - from given backfill start date
  • uses S3 bucket lock objects for carbon export, cost export schedule and cost export run
  • cost export schedule - creates the Cost Management export jobs for each backfill month up to last month (if schedule lock does not exist)
  • cost export run - runs the export job (if exists - warns if not) - from last month to backfill start - but in batches of ten on every run (every day)
    • only when there are no more backfills to run (because we have data) will the lock be created.

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Workflow is green

Warren to remove the template network/CORS rules on the function app: function_app.tf

[github-actions]

Pull Request Review Status

• 🖌 Terraform Format and Style: failure
• 🔍 Terraform Linting: success
• 👮 Terraform Security Check: success
• 👮 Terraform Security Checkov: success
• 🔘 Terraform Tests: success
• 🔧 Terraform Initialisation: success
• 🤖 Terraform Validation: success
• 🤖 Terraform Example Validation: success
• 📖 Terraform Documentation: success
• 🔖 Commitlint: ``

Working Directory: .
Pusher: @wozzer72, Action: pull_request
Workflow Run Link: https://github.com/co-cddo/terraform-azure-focus/actions/runs/21146011249