build-container.yml

---
name: docker-hub build and push
on:
  workflow_call:
    inputs:
      container-tag:
        type: string
        required: true
        description: 'The tag to use for the container'

env:
  fail-fast: true

permissions:
  contents: write
  issues: write

jobs:
  get-release:
    name: Get latest release tag
    runs-on: ubuntu-latest
    outputs:
      app_version: ${{ steps.get_release_tag.outputs.app_version }}

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          fetch-tags: true

      - name: Get the last tag via git and store in var
        id: get_release_tag
        run: |
          APP_VERSION=$(git describe --tags $(git rev-list --tags --max-count=1))
          echo "${APP_VERSION}"
          echo "app_version=${APP_VERSION}" >> ${GITHUB_OUTPUT}

  docker-hub:
    needs: get-release
    name: Build and push to DockerHub
    runs-on: ubuntu-latest

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

      - name: show app_version from release job
        env:
          RELEASE_TAG: ${{ needs.get-release.outputs.app_version }}
        run: |
          echo "Delivered release tag is ${RELEASE_TAG} (local var)"
          echo "Delivered release tag is ${{ needs.get-release.outputs.app_version }} (from needs)"
          echo "Delivered release tag is ${{ env.RELEASE_TAG }} (from env)"

      - name: Login to DockerHub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_TOKEN }}

      - name: Extract metadata (tags, labels) for development
        id: meta-dev
        uses: docker/metadata-action@v5
        if: ${{ inputs.container-tag != 'latest' }}
        env:
          RELEASE_TAG: ${{ needs.get-release.outputs.app_version }}
        with:
          images: ${{ secrets.DOCKER_USERNAME }}/${{ vars.DOCKER_PROJECT_NAME }}
          tags: |
            type=semver,pattern={{version}} 
            type=semver,pattern={{major}}.{{minor}}
            type=raw,value=${{ inputs.container-tag }}

      - name: Extract metadata (tags, labels) for latest release
        id: meta-latest
        uses: docker/metadata-action@v5
        if: ${{ inputs.container-tag == 'latest' }}
        env:
          RELEASE_TAG: ${{ needs.get-release.outputs.app_version }}
        with:
          images: ${{ secrets.DOCKER_USERNAME }}/${{ vars.DOCKER_PROJECT_NAME }}
          tags: |
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=raw,value=${{ env.RELEASE_TAG }}
            type=raw,value=${{ inputs.container-tag }}

      - name: Build and push for development
        uses: docker/build-push-action@v6
        if: ${{ inputs.container-tag != 'latest' }}
        with:
          context: .
          file: ./Dockerfile
          push: true
          tags: ${{ steps.meta-dev.outputs.tags }}
          labels: ${{ steps.meta-dev.outputs.labels }}

      - name: Build and push for latest
        uses: docker/build-push-action@v6
        if: ${{ inputs.container-tag == 'latest' }}
        with:
          context: .
          file: ./Dockerfile
          push: true
          tags: ${{ steps.meta-latest.outputs.tags }}
          labels: ${{ steps.meta-latest.outputs.labels }}