promote.yaml

name: Promote
on:
  workflow_dispatch:
    inputs:
      application:
        description: Application to promote
        required: true
        type: choice
        options:
          - podinfo
      source:
        description: From source environment
        required: true
        type: choice
        options:
          - dev-1-aws-us-east-1
          - prd-5-aws-us-east-1
          - prd-6-aws-eu-west-1
          - prd-7-gcp-europe-west1
          - prd-8-gcp-us-central1
          - stg-3-aws-us-east-1
          - stg-4-gcp-europe-west1
          - tst-2-aws-us-east-1
      target:
        description: To target environment
        required: true
        type: choice
        options:
          - dev-1-aws-us-east-1
          - prd-5-aws-us-east-1
          - prd-6-aws-eu-west-1
          - prd-7-gcp-europe-west1
          - prd-8-gcp-us-central1
          - stg-3-aws-us-east-1
          - stg-4-gcp-europe-west1
          - tst-2-aws-us-east-1
      branch:
        description: Branch name
        required: true
        type: string
jobs:
  promote:
    runs-on: ubuntu-latest
    name: Promote
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Extract source components
        # get the components, ignore mixins, and write them to a file
        run: |
          yq '[.components[] | select(test("(../)*mixins/") == false)]' \
          environments/${{inputs.source}}/${{inputs.application}}/kustomization.yaml >> components.yaml
      - name: Extract target components
        # use all components from source
        run: |
          yq '.components' \
          environments/${{inputs.target}}/${{inputs.application}}/kustomization.yaml >> components.yaml
      - name: Write new components
        run: |
          yq -i '.components |= load("components.yaml")' \
          environments/${{inputs.target}}/${{inputs.application}}/kustomization.yaml
      - name: Sort components
        run: |
          yq -i '.components |= (unique | sort) ' \
          environments/${{inputs.target}}/${{inputs.application}}/kustomization.yaml
      - name: Cleanup
        run: rm components.yaml
      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v4
        with:
          draft: true
          commit-message: Promote ${{ inputs.source }} to ${{ inputs.target }}
          branch: ${{inputs.branch}}
          delete-branch: true
          title: Promote ${{ inputs.source }} to ${{ inputs.target }}
          body: |
            This automatically created pull request will not trigger workflows
            with the `push` and/or `pull_request` triggers due
            to [Github's recursing protection](https://github.com/peter-evans/create-pull-request/blob/main/docs/concepts-guidelines.md#triggering-further-workflow-runs).

            Manually close and reopen this pull request so the required actions are executed.