added CI for builds

Author: liisaratsep

Diff for: .dockerignore

@@ -1,4 +1,5 @@
 .idea/
 *.iml
 .git/
-.gitignore
+.gitignore
+.github

Diff for: .github/workflows/docker-publish.yml

@@ -0,0 +1,85 @@
+name: Docker
+
+on:
+  push:
+    tags: [ 'v*.*.*' ]
+
+env:
+  # Use docker.io for Docker Hub if empty
+  REGISTRY: ghcr.io
+  # github.repository as <account>/<repo>
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      packages: write
+
+    steps:
+      - name: Checkout repository (with submodules)
+        uses: actions/checkout@v2
+        with:
+          submodules: recursive
+
+      - name: Extract semver
+        id: get_version
+        uses: battila7/get-version-action@v2
+
+      # Lowercase image name, as mixed case is not allowed while caching
+      - name: lowercase IMAGE_NAME
+        run: |
+          echo "IMAGE_NAME_LOWER=${IMAGE_NAME,,}" >>${GITHUB_ENV}
+        env:
+          IMAGE_NAME: '${{ env.IMAGE_NAME }}'
+
+      # Login against a Docker registry except on PR
+      # https://github.com/docker/login-action
+      - name: Log into registry ${{ env.REGISTRY }}
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@28218f9b04b4f3f62068d7b6ce6ca5b26e35336c
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      # Extract metadata (tags, labels) for Docker
+      # https://github.com/docker/metadata-action
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
+        with:
+          flavor: |
+            latest=${{ !github.event.release.prerelease }}
+          tags: |
+            type=semver,pattern={{version}}
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_LOWER }}
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@master
+
+      # Build and push Docker image with Buildx
+      # https://github.com/docker/build-push-action
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
+        with:
+          context: .
+          builder: ${{ steps.buildx.outputs.name }}
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME_LOWER }}:latest
+          cache-to: type=inline
+          build-args: |
+            API_VERSION=${{steps.get_version.outputs.version-without-v}}
+
+      - name: Generate SBOM
+        uses: anchore/[email protected]
+        with:
+          image: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_LOWER }}:${{steps.get_version.outputs.version-without-v}}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          format: cyclonedx-json