terraform.yml

name: 'Terraform'

on:
  push:
    branches: [ "main" ]
  pull_request:
  workflow_dispatch:
    inputs:
      name:
        description: "Manual deploy"
        default: "Manual deploy"

env:
  TF_CLOUD_ORGANIZATION: "${{ vars.BMB_TF_ORGANIZATION }}"
  TF_API_TOKEN: "${{ secrets.TF_API_TOKEN }}"
  TF_WORKSPACE: "${{ vars.TF_WORKSPACE }}"
  CONFIG_DIRECTORY: "./"

permissions:
  contents: read

jobs:

  test:
    name: 'Test'
    runs-on: ubuntu-latest
    environment: dev

    defaults:
      run:
        shell: bash

    steps:
    - name: Checkout
      uses: actions/checkout@v4

    - name: Setup Terraform
      uses: hashicorp/setup-terraform@v3
      with:
        cli_config_credentials_token: ${{ secrets.TF_API_TOKEN }}

    - name: Terraform Init
      run: terraform init -upgrade

    - name: Terraform Test
      if: github.event_name == 'push'
      run: terraform test


  terraform-plan:
    needs: [test]
    if: github.event_name == 'pull_request'
    environment: dev
    name: "Terraform Plan"
    runs-on: ubuntu-latest
    permissions:
      contents: read
      pull-requests: write
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        
      - name: Config node
        id: install-packages
        uses: actions/setup-node@v4
        with:
          node-version: 18

      - name: Install dependencies
        working-directory: app/cpf-policy-authorizer
        run: npm install

      - name: Create .auto.tfvars file
        run: |
          cat <<EOF > auth.auto.tfvars
          api_name = "${{ vars.BMB_AUTH_API_NAME }}"
          vpc_name = "${{ vars.BMB_EKS_CLUSTER_VPC }}"
          nlb_name = "${{ vars.BMB_INTERNAL_LB_NAME }}"
          user_pool_name = "${{ vars.BMB_USER_POOL_NAME }}"
          jwt_secret = "${{ secrets.BMB_JWT_SECRET_KEY }}"
          jwt_issuer = "${{ vars.BMB_JWT_ISSUER }}"
          jwt_audience = "${{ vars.BMB_JWT_AUDIENCE }}"
          EOF

      - name: Upload Configuration
        uses: hashicorp/tfc-workflows-github/actions/upload-configuration@v1.3.1
        id: plan-upload
        with:
          workspace: ${{ env.TF_WORKSPACE }}
          directory: ${{ env.CONFIG_DIRECTORY }}
          speculative: true

      - name: Create Plan Run
        uses: hashicorp/tfc-workflows-github/actions/create-run@v1.3.1
        id: plan-run
        with:
          workspace: ${{ env.TF_WORKSPACE }}
          configuration_version: ${{ steps.plan-upload.outputs.configuration_version_id }}
          plan_only: true

      - name: Get Plan Output
        uses: hashicorp/tfc-workflows-github/actions/plan-output@v1.3.1
        id: plan-output
        with:
          plan: ${{ fromJSON(steps.plan-run.outputs.payload).data.relationships.plan.data.id }}

      - name: Update PR
        uses: actions/github-script@v7
        id: plan-comment
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            // 1. Retrieve existing bot comments for the PR
            const { data: comments } = await github.rest.issues.listComments({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
            });
            const botComment = comments.find(comment => {
              return comment.user.type === 'Bot' && comment.body.includes('Terraform Cloud Plan Output')
            });
            const output = `#### Terraform Cloud Plan Output
                \`\`\`
                Plan: ${{ steps.plan-output.outputs.add }} to add, ${{ steps.plan-output.outputs.change }} to change, ${{ steps.plan-output.outputs.destroy }} to destroy.
                \`\`\`
                [Terraform Cloud Plan](${{ steps.plan-run.outputs.run_link }})
                `;
            // 3. Delete previous comment so PR timeline makes sense
            if (botComment) {
              github.rest.issues.deleteComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                comment_id: botComment.id,
              });
            }
            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: output
            });

  deploy:
    needs: [test]
    if: github.ref == 'refs/heads/main'
    name: "Terraform Apply"
    runs-on: ubuntu-latest
    environment: dev
    permissions:
      contents: read
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Create .auto.tfvars file
        run: |
          cat <<EOF > auth.auto.tfvars
          api_name = "${{ vars.BMB_AUTH_API_NAME }}"
          vpc_name = "${{ vars.BMB_EKS_CLUSTER_VPC }}"
          nlb_name = "${{ vars.BMB_INTERNAL_LB_NAME }}"
          user_pool_name = "${{ vars.BMB_USER_POOL_NAME }}"
          jwt_secret = "${{ secrets.BMB_JWT_SECRET_KEY }}"
          jwt_issuer = "${{ vars.BMB_JWT_ISSUER }}"
          jwt_audience = "${{ vars.BMB_JWT_AUDIENCE }}"
          EOF

      - name: Config node
        id: install-packages
        uses: actions/setup-node@v4
        with:
          node-version: 18

      - name: Install dependencies
        working-directory: app/cpf-policy-authorizer
        run: npm install

      - name: Upload Configuration
        uses: hashicorp/tfc-workflows-github/actions/upload-configuration@v1.3.1
        id: apply-upload
        with:
          workspace: ${{ env.TF_WORKSPACE }}
          directory: ${{ env.CONFIG_DIRECTORY }}

      - name: Create Apply Run
        uses: hashicorp/tfc-workflows-github/actions/create-run@v1.3.1
        id: apply-run
        with:
          workspace: ${{ env.TF_WORKSPACE }}
          configuration_version: ${{ steps.apply-upload.outputs.configuration_version_id }}
          message: "Create Run from GitHub Actions CI ${{ github.sha }}"

      - uses: hashicorp/tfc-workflows-github/actions/apply-run@v1.3.1
        if: ${{ vars.TF_AUTO_APPROVE == 'true' }}
        id: apply
        with:
          run: ${{ steps.apply-run.outputs.run_id }}
          comment: "Confirmed from GitHub Actions CI ${{ github.sha }}"

      - name: Upload Artifact
        uses: actions/upload-artifact@v4
        with:
          name: lambda
          path: files/lambda.zip