delete-review-app.yml

name: Delete Review App

on:
  pull_request:
    branches:
      - main
    types:
      - closed
  workflow_dispatch:
    inputs:
      pr_number:
        description: PR number of review app to delete
        required: false
        type: string

jobs:
  delete-review-app:
    name: Delete Review App ${{ github.event.pull_request.number }}
    concurrency: deploy_review_${{ github.event.pull_request.number }}
    runs-on: ubuntu-latest
    if: ${{ contains(github.event.pull_request.labels.*.name, 'deploy') }}
    environment: review
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Extract configuration from tfvars
        run: |
          if [ ${{ github.event_name }} == 'workflow_dispatch' ]; then
            PR_NUMBER=${{ github.event.inputs.pr_number }}
          else
            PR_NUMBER=${{ github.event.pull_request.number }}
          fi

          echo "PR_NUMBER=$PR_NUMBER" >> $GITHUB_ENV
          echo "STORAGE_ACCOUNT_NAME=s189t01aytqrvtfsa" >> $GITHUB_ENV
          echo "TF_RESOURCE_GROUP_NAME=s189t01-aytq-rv-rg" >> $GITHUB_ENV
        shell: bash

      - uses: Azure/login@v1
        with:
          creds: ${{ secrets.AZURE_CREDENTIALS }}

      - run: |
          TFSTATE_CONTAINER_ACCESS_KEY="$(az storage account keys list -g ${{ env.TF_RESOURCE_GROUP_NAME }} -n ${{ env.STORAGE_ACCOUNT_NAME }} | jq -r '.[0].value')"
          echo "::add-mask::$TFSTATE_CONTAINER_ACCESS_KEY"
          echo "TFSTATE_CONTAINER_ACCESS_KEY=$TFSTATE_CONTAINER_ACCESS_KEY" >> $GITHUB_ENV
        shell: bash

      - uses: hashicorp/setup-terraform@v3
        with:
          terraform_version: 1.6.4
          terraform_wrapper: false

      - name: Set Environment variables
        run: |
          TF_STATE_FILE=pr-${{ env.PR_NUMBER }}_kubernetes.tfstate
          echo "TF_STATE_FILE=$TF_STATE_FILE" >> $GITHUB_ENV

          pr_state_file=$(az storage blob list -c terraform-state \
            --account-key ${{ env.TFSTATE_CONTAINER_ACCESS_KEY }} \
            --account-name ${{ env.STORAGE_ACCOUNT_NAME }} \
            --prefix $TF_STATE_FILE --query "[].name" -o tsv)
          if [ -n "$pr_state_file" ]; then
            echo "TF_STATE_EXISTS=true" >> $GITHUB_ENV
          fi

      - uses: DFE-Digital/github-actions/set-kubelogin-environment@master
        with:
          azure-credentials: ${{ secrets.AZURE_CREDENTIALS }}

      - name: Terraform Destroy
        run: |
          make ci review terraform-destroy
        env:
          PR_NUMBER: ${{ env.PR_NUMBER }}

      - name: Delete tf state file
        if: env.TF_STATE_EXISTS == 'true'
        run: |
          az storage blob delete -c terraform-state --name ${{ env.TF_STATE_FILE }} \
          --account-key ${{ env.TFSTATE_CONTAINER_ACCESS_KEY }} \
          --account-name ${{ env.STORAGE_ACCOUNT_NAME }}

      - name: Post Pull Request Comment ${{ github.event.number }}
        if: ${{ github.event_name == 'pull_request' }}
        uses: marocchino/sticky-pull-request-comment@v2
        with:
          header: aks
          message: |
            The review apps Access Your Teaching Qualifications & Check A Teacher's Record have been deleted.
            The following domains are not available anymore:
            - <https://access-your-teaching-qualifications-pr-${{ github.event.number }}.test.teacherservices.cloud>
            - <https://check-a-teachers-record-pr-${{ github.event.number }}.test.teacherservices.cloud>