docker-hub-build-and-push.yml

name: Build and Push Docker Image

# We want to deploy on all merges to main and any tag push.
# On main push:
#   - Build, tag, and push HEAD as `latest`
# On test tag push:
#   - Build, tag, and push HEAD as `unstable`
# On prod tag push:
#   - Build, tag, and push HEAD as `stable`
# Any other tag:
#   - Build, tag, and push HEAD as `<tag>`
on:
  push:
    branches:
    - "main"
    tags:
    - "*"

jobs:
  docker:
    runs-on: ubuntu-latest

    steps:
    - name: Prepare
      id: prep
      run: |
        DOCKER_IMAGE=conorjf/fia-api
        TAGS=""

        if [[ $GITHUB_REF_TYPE == tag ]]; then
          if [[ $GITHUB_REF_NAME == test ]]; then
            TAGS="$TAGS,${DOCKER_IMAGE}:unstable"
          elif [[ $GITHUB_REF_NAME == prod ]]; then
            TAGS="$TAGS,${DOCKER_IMAGE}:stable"
          else
            TAGS="$TAGS,${DOCKER_IMAGE}:$GITHUB_REF_NAME"
          fi
        fi

        if [[ $GITHUB_REF_TYPE == branch ]]; then
          if [[ $GITHUB_REF_NAME == main ]]; then
            TAGS="$TAGS,${DOCKER_IMAGE}:latest"
          fi
        fi

        echo ::set-output name=tags::${TAGS}

    - name: Checkout
      uses: actions/checkout@v3

    - name: Login to DockerHub
      uses: docker/login-action@v2
      with:
        username: ${{ secrets.DOCKERHUB_USERNAME }}
        password: ${{ secrets.DOCKERHUB_TOKEN }}

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v2

    - name: Build and push
      id: docker_build
      uses: docker/build-push-action@v4
      with:
        context: .
        file: ./deploy/Dockerfile
        push: true
        tags: ${{ steps.prep.outputs.tags }}