feat: docker push workflow

.github/workflows/docker-build-push.yml

@@ -0,0 +1,51 @@
+name: Build and Push Docker Images
+
+on:
+  workflow_dispatch:
+    inputs:
+      image:
+        description: "Select the image type to build"
+        required: true
+        type: choice
+        options:
+          - cpu
+          - gpu
+      tag:
+        description: "Docker image tag (e.g., latest, 2.53.0)"
+        required: true
+        type: string
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to cerit.io
+        uses: docker/login-action@v3
+        with:
+          registry: cerit.io
+          username: ${{ secrets.REGISTRY_USERNAME }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+
+      - name: Determine exact image tag
+        id: set_tag
+        run: |
+          # Automatically append '-gpu' suffix for GPU images if not already present
+          if [ "${{ inputs.image }}" = "gpu" ] && [[ "${{ inputs.tag }}" != *"-gpu" ]]; then
+            echo "image_tag=${{ inputs.tag }}-gpu" >> $GITHUB_OUTPUT
+          else
+            echo "image_tag=${{ inputs.tag }}" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Build and push image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./docker/Dockerfile.${{ inputs.image }}
+          push: true
+          tags: cerit.io/rationai/model-service:${{ steps.set_tag.outputs.image_tag }}