feat: add action to build image on tag

.github/workflows/build-backend-image.yaml

@@ -0,0 +1,39 @@
+name: Build and Push Docker Image on Tag
+
+on:
+  push:
+    tags:
+      - '*'
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}-backend
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Log into the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata for the Docker image
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push the Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile_Backend
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

.github/workflows/build-notifier-image.yaml

@@ -0,0 +1,39 @@
+name: Build and Push Docker Image on Tag
+
+on:
+  push:
+    tags:
+      - '*'
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}-notifier
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Log into the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata for the Docker image
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push the Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile_Notifier
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile_Notifier

@@ -0,0 +1,26 @@
+# Build Stage
+FROM golang:1.21 AS build
+
+# Set the working directory
+WORKDIR /app
+
+# Copy all files to the working directory
+COPY . .
+
+# Download all dependencies
+RUN go mod download
+
+# Set CGO_ENABLED to 1
+# ENV CGO_ENABLED=1
+
+# Build the Go application
+RUN CGO_ENABLED=1 GOOS=linux go build -o /app/main ./cmd/notification.go
+
+# Runtime Stage
+FROM busybox AS runtime
+
+# Copy the binary from the build stage to the runtime stage
+COPY --from=build /app/main /app
+
+# Set the entry point to execute the binary directly
+ENTRYPOINT ["/app"]