ci: workflow with docker images

Author: SoulKyu

.github/workflows/release.yml

@@ -46,10 +46,39 @@ jobs:
     - name: Build binaries for multiple platforms
       run: |
         go mod download
-        
+
         # Build for Linux (amd64)
         GOOS=linux GOARCH=amd64 go build -o notificator-linux-amd64 .
-    
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Login to Docker Hub
+      uses: docker/login-action@v3
+      with:
+        username: soulkyu
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+    - name: Build and push Docker images
+      run: |
+        VERSION="${{ steps.version.outputs.version }}"
+
+        # Build and push WebUI image
+        docker build -t soulkyu/notificator-webui:${VERSION} -t soulkyu/notificator-webui:latest -f Dockerfile.webui .
+        docker push soulkyu/notificator-webui:${VERSION}
+        docker push soulkyu/notificator-webui:latest
+
+        # Build and push Backend image
+        docker build -t soulkyu/notificator-backend:${VERSION} -t soulkyu/notificator-backend:latest -f Dockerfile.backend .
+        docker push soulkyu/notificator-backend:${VERSION}
+        docker push soulkyu/notificator-backend:latest
+
+        # Build and push Alertmanager image
+        cd alertmanager/fake
+        docker build -t soulkyu/notificator-alertmanager:${VERSION} -t soulkyu/notificator-alertmanager:latest -f Dockerfile .
+        docker push soulkyu/notificator-alertmanager:${VERSION}
+        docker push soulkyu/notificator-alertmanager:latest
+
     - name: Create and push tag
       run: |
         git config --local user.email "action@github.com"
@@ -70,8 +99,16 @@ jobs:
         body: |
           ## Changes
           - Built from commit: ${{ github.sha }}
-          - Automatic release triggered by push to master
-          
+          - Automatic release triggered by push to main
+
+          ## Docker Images
+          Docker images are available on Docker Hub with this version tag:
+          - `soulkyu/notificator-webui:${{ steps.version.outputs.version }}`
+          - `soulkyu/notificator-backend:${{ steps.version.outputs.version }}`
+          - `soulkyu/notificator-alertmanager:${{ steps.version.outputs.version }}`
+
+          Also tagged as `:latest` for convenience.
+
           ## Binaries
           Multiple platform binaries are attached to this release:
           - `notificator-linux-amd64` - Linux x86_64