Merge pull request #25 from tchapi/feature/github-actions

Create Github actions file

.github/workflows/main.yml

@@ -0,0 +1,41 @@
+name: Publish Docker image
+on:
+  release:
+    types: [published]
+jobs:
+  push_to_registry:
+    name: Push Docker image to GitHub Packages
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Prepare
+        id: prepare_tags
+        run: |
+          DOCKER_IMAGE=tchapi/davis
+          VERSION=edge
+          if [[ $GITHUB_REF == refs/tags/* ]]; then
+            VERSION=${GITHUB_REF#refs/tags/}
+          fi
+          TAGS="${DOCKER_IMAGE}:${VERSION}"
+          if [ "${{ github.event_name }}" = "push" ]; then
+            TAGS="$TAGS,${DOCKER_IMAGE}:sha-${GITHUB_SHA::8}"
+          fi
+          echo ::set-output name=version::${VERSION}
+          echo ::set-output name=tags::${TAGS}
+          echo ::set-output name=created::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
+      -
+        name: Build and Push to GitHub Packages
+        id: docker_build
+        uses: docker/build-push-action@v2
+        with:
+          file: docker/Dockerfile
+          pull: true
+          push: true
+          tags: ${{ steps.prepare_tags.outputs.tags }}
+          labels: |
+            org.opencontainers.image.source=${{ github.event.repository.html_url }}
+            org.opencontainers.image.created=${{ steps.prepare_tags.outputs.created }}
+            org.opencontainers.image.revision=${{ github.sha }}