chore: add action to publish docker image on ghcr.io

.github/workflows/ghcr.yml

@@ -0,0 +1,63 @@
+name: Container image
+
+on:
+ release:
+ types: [created]
+
+ # Run build for any PRs - we won't push in those however
+ pull_request:
+ branches:
+ - master
+
+ # Publish `master` as Docker `latest` image.
+ push:
+ branches:
+ - master
+
+env:
+ IMAGE_NAME: emeis
+
+jobs:
+ # Push image to GitHub Packages.
+ # See also https://docs.docker.com/docker-hub/builds/
+ container-registry:
+ runs-on: ubuntu-latest
+ permissions:
+ packages: write
+ contents: read
+
+ steps:
+ - uses: actions/checkout@v2
+
+ - name: Build image
+ run: docker build . --file Dockerfile --tag $IMAGE_NAME --label "runnumber=${GITHUB_RUN_ID}"
+
+ - name: Log in to registry
+ if: github.event_name != 'pull_request'
+ run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
+
+ - name: Push image
+ if: github.event_name != 'pull_request'
+ run: |
+ IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME
+ # Change all uppercase to lowercase
+ IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')
+ # Strip git ref prefix from version
+ VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
+ # Strip "v" prefix from tag name
+ [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
+ # Use Docker `latest` tag convention
+ if [[ "$VERSION" == "master" ]]; then
+ # only push "dev" image from master branch build
+ echo "Pushing $IMAGE_ID:dev"
+ docker tag $IMAGE_NAME $IMAGE_ID:dev
+ docker push $IMAGE_ID:dev
+ else
+ # new version released - push "latest" and version tag
+ echo "Pushing $IMAGE_ID:$VERSION"
+ docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
+ docker push $IMAGE_ID:$VERSION
+ echo "Pushing $IMAGE_ID:latest"
+ docker tag $IMAGE_NAME $IMAGE_ID:latest
+ docker push $IMAGE_ID:latest
+ fi