Merge pull request #20 from NBISweden/chore/push-to-gcr

chore: add github action to build and push image

.github/workflows/tag_and_build.yml

@@ -0,0 +1,35 @@
+name: Build and push Docker image
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build image
+        uses: docker/build-push-action@v4
+        with:
+          context:
+          file: ./Dockerfile
+          push: true
+          tags: |
+            ghcr.io/shinynbis:latest
+            ghcr.io/shinynbis:${{ needs.tag.outputs.tag }}
+          labels: |
+            org.opencontainers.image.source=${{ github.event.repository.clone_url }}
+            org.opencontainers.image.created=$(date -u +'%Y-%m-%dT%H:%M:%SZ')
+            org.opencontainers.image.revision=${{ github.sha }}
+