GitHub Actions for Elixir/Phoenix test/build/release + release on GitHub

elixir.yml

name: Elixir CI

on: push

jobs:
  test:
    runs-on: ${{ matrix.os }}
    name: OTP ${{ matrix.otp }} | Elixir ${{ matrix.elixir }} | Node ${{ matrix.node }} | OS ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-18.04]
        otp: [22.x]
        elixir: [1.9.x]
        node: [12.x]

    services:
      db:
        image: postgres:11
        ports: ['5432:5432']
        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5

    steps:
      - uses: actions/checkout@v1.0.0
      - uses: actions/setup-elixir@v1.0.0
        with:
          otp-version: ${{ matrix.otp }}
          elixir-version: ${{ matrix.elixir }}
      - uses: actions/setup-node@v1
        with:
          node-version: ${{ matrix.node }}

      - name: Install dependencies
        run: |
          mix local.rebar --force
          mix local.hex --force
          mix deps.get
          yarn --cwd assets install
      - name: Run tests
        run: |
          mix compile --warnings-as-errors
          mix format --check-formatted
          mix test
        env:
          MIX_ENV: test

      - name: Prepare release
        run: |
          export SECRET_KEY_BASE=$( mix phx.gen.secret )
          mix compile
          cd assets && npm install && npm run deploy
          cd ../
          mix phx.digest
          mix release
        env:
          MIX_ENV: prod
          DATABASE_URL: ecto://USER:PASS@HOST/database

      - name: Archive release
        run: |
          zip -r platform-api _build
      - name: Create Github Release
        id: create_release
        uses: actions/create-release@v1.0.0
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ github.ref }}
          release_name: Release ${{ github.ref }}
          draft: false
          prerelease: false

      - name: Upload Github Release Asset
        id: upload-release-asset
        uses: actions/upload-release-asset@v1.0.1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          upload_url: ${{ steps.create_release.outputs.upload_url }} # This pulls from the CREATE RELEASE step above, referencing it's ID to get its outputs object, which include a `upload_url`. See this blog post for more info: https://jasonet.co/posts/new-features-of-github-actions/#passing-data-to-future-steps
          asset_path: ./platform-api.zip
          asset_name: platform-api.zip
          asset_content_type: application/zip