add: Google Cloud のデプロイに必要なファイルを追加

.github/workflows/deploy.yml

@@ -0,0 +1,46 @@
+name: Deploy to Google Cloud Run
+
+on:
+  push:
+    branches:
+      - main
+
+# 下記は適宜書き換えてください
+env:
+  GCP_PROJECT_ID: tacktail
+  GCP_REGION: asia-northeast1
+  IMAGE_NAME: gcr.io/tacktail/tacktail-backend
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Set up Cloud SDK
+        uses: google-github-actions/setup-gcloud@v1
+
+      - name: Authenticate with Google Cloud
+        uses: google-github-actions/[email protected]
+        with:
+          credentials_json: ${{ secrets.GCP_SA_KEY }}
+
+      - name: Configure Docker
+        run: gcloud auth configure-docker
+
+      - name: Build and push Docker image
+        run: |
+          TAG=$(echo $GITHUB_SHA | head -c7)
+          docker build -t ${IMAGE_NAME}:${TAG} .
+          docker push ${IMAGE_NAME}:${TAG}
+
+      - name: Deploy to Cloud Run
+        run: |
+          TAG=$(echo $GITHUB_SHA | head -c7)
+          gcloud run deploy web-push-demo \
+            --image ${IMAGE_NAME}:${TAG} \
+            --platform managed \
+            --region ${GCP_REGION} \
+            --allow-unauthenticated

Dockerfile

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+FROM golang:1.23.1-alpine3.20
+
+COPY ./app /go/app/
+
+WORKDIR /go/app/
+
+RUN go mod download && go mod tidy
+RUN go build -o main .
+
+EXPOSE 8080
+
+CMD ["/app/main"]