docker-image.yml

name: Docker Image CI

on:
  push:
    branches: [ main ]
    tags: [ v* ]

  pull_request:
    branches: [ main ]

env:
  IMAGE_NAME: vicare-exporter

jobs:

  build:

    runs-on: ubuntu-latest
    permissions:
      packages: write
      contents: read

    steps:
    - uses: actions/checkout@v2

    - name: Build the Docker image
      run: |
        docker build . \
        --tag ghcr.io/sebbegg/${IMAGE_NAME}:${{ github.run_id }} \
        --tag ghcr.io/sebbegg/${IMAGE_NAME}:latest

    - name: Push docker image
      run: |
        set -ex

        echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
        echo docker push ghcr.io/sebbegg/${IMAGE_NAME}:${{ github.run_id }}

        ref="${{ github.ref }}"

        if [[ "$ref" == "refs/heads/main" ]]
        then
          docker push ghcr.io/sebbegg/${IMAGE_NAME}:latest
        fi

        if [[ "$ref" =~ refs/tags/v[0-9].* ]]
        then
          version="${{ github.ref_name }}"
          docker tag ghcr.io/sebbegg/${IMAGE_NAME}:${{ github.run_id }} ghcr.io/sebbegg/${IMAGE_NAME}:$version
          docker push ghcr.io/sebbegg/${IMAGE_NAME}:$version
        fi