cd.yml

---
name: "Deployment"

on:
  push:
    paths:
      - ".github/workflows/cd.yml"
      - ".github/workflows/destroy.yml"
      - "setup.py"
      - "terraform/**"
      - "treehouse/**"

jobs:
  deploy:
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: ./terraform
    steps:
      - uses: actions/checkout@v2

      - name: Set environment vars
        run: |
          echo "PYTHON_VERSION=3.8" >> $GITHUB_ENV
          echo "PLATFORM_TOOLS_VERSION=$(python setup.py --version)" >> $GITHUB_ENV
        working-directory: ./

      - name: Use default workspace (main branch)
        if: endsWith(github.ref, '/main')
        run: |
          echo "WORKSPACE=default" >> $GITHUB_ENV

      - name: Use custom workspace (feature branch)
        if: endsWith(github.ref, '/main') == false
        run: |
          echo "WORKSPACE=${GITHUB_REF#refs/heads/}" >> $GITHUB_ENV

      - name: Set up Python 3.8
        uses: actions/setup-python@v3
        with:
          python-version: "${{ env.PYTHON_VERSION }}"

      - name: Create package with dependencies
        run: |
          python setup.py bdist_egg --dist-dir .
        working-directory: ./

      - name: Rename egg
        run: |
          mv platform_tools-${{ env.PLATFORM_TOOLS_VERSION }}-py${{ env.PYTHON_VERSION }}.egg platform_tools.egg
        working-directory: ./

      - name: Put variables in env var
        run: |
          echo "VARIABLES_JSON={\"git_branch\": \"${GITHUB_REF#refs/heads/}\", \"platform_tools_artifact_filename\": \"platform_tools.egg\"}" >> $GITHUB_ENV

      - uses: Pararius/action-terraform@0.0.21
        with:
          google_credentials: ${{ secrets.GCLOUD_AUTH_TF_RW }}
          terraform_directory: ./terraform
          terraform_do_apply: true
          terraform_do_destroy: false
          terraform_lock: true
          terraform_variables: ${{ env.VARIABLES_JSON }}
          terraform_workspace: ${{ env.WORKSPACE }}

      - name: Send alert for failing apply on main
        if: endsWith(github.ref, '/main')
        uses: ravsamhq/notify-slack-action@v1
        with:
          status: ${{ job.status }}
          notify_when: "failure"
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}