feat: create GitHub Actions workflow: build + push to GHCR

Author: bekmuradov

.github/workflows/publish-ghcr.yml

@@ -0,0 +1,60 @@
+name: Build and publish Docker image to GHCR
+
+on:
+  push:
+    branches: [ "main" ]
+  release:
+    types: [ created ]
+
+permissions:
+  contents: read
+  packages: write
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    env:
+      IMAGE_NAME: braindrive-document-ai
+      REGISTRY: ghcr.io
+      REPO: ${{ github.repository_owner }}/${{ env.IMAGE_NAME }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log into GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Cache Docker layers (buildx)
+        uses: actions/cache@v4
+        with:
+          path: /tmp/.buildx-cache
+          key: buildx-cache-${{ github.sha }}
+          restore-keys: |
+            buildx-cache-
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          platforms: linux/amd64,linux/arm64
+          tags: |
+            ghcr.io/${{ github.repository_owner }}/${{ env.IMAGE_NAME }}:latest
+            ghcr.io/${{ github.repository_owner }}/${{ env.IMAGE_NAME }}:${{ github.sha }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          build-args: |
+            ENABLE_CUDA=${{ inputs.enable_cuda || 'false' }}
+
+      - name: Upload image digest to artifacts
+        if: success()
+        run: echo "Image pushed: ghcr.io/${{ github.repository_owner }}/${{ env.IMAGE_NAME }}:latest"