prod_deploy.yml

name: Deploy to production
on:
  workflow_dispatch:
    branches: [master]

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Get Git sha
        run: echo GIT_SHA=`git rev-parse HEAD | cut -c1-8` >> $GITHUB_ENV
      - name: Build, Push and Release a Docker container to Heroku
        uses: gonuit/heroku-docker-deploy@v1.3.3
        with:
          # The email address associated with your Heroku account.
          # If you don't want to use repository secrets (which is recommended) you can do:
          # email: my.email@example.com
          email: peter@peknet.com
          
          # Heroku API key associated with provided user's email.
          # Api Key is available under your Heroku account settings.
          heroku_api_key: ${{ secrets.HEROKU_API_KEY }}
          
          # Name of the heroku application to which the build is to be sent.
          heroku_app_name: ksvotes-production

          # (Optional, default: "./")
          # Dockerfile directory.
          # For example, if you have a Dockerfile in the root of your project, leave it as follows:
          dockerfile_directory: ./

          # (Optional, default: "Dockerfile")
          # Dockerfile name.
          dockerfile_name: Dockerfile

          # (Optional, default: "")
          # Additional options of docker build command.
          docker_options: "--no-cache --build-arg GIT_SHA=${{ env.GIT_SHA }}"

          # (Optional, default: "web")
          # Select the process type for which you want the docker container to be uploaded.
          # By default, this argument is set to "web".
          # For more information look at https://devcenter.heroku.com/articles/process-model
          process_type: web