[build] Github Actions 배포

.github/ecs/taskdef.json

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+{
+  "family": "table-now-backend-task",
+  "containerDefinitions": [
+    {
+      "name": "table-now-backend",
+      "image": "257394467546.dkr.ecr.ap-northeast-2.amazonaws.com/table-now-backend:latest",
+      "cpu": 0,
+      "portMappings": [
+        {
+          "name": "spring-boot-port",
+          "containerPort": 8080,
+          "hostPort": 8080,
+          "protocol": "tcp",
+          "appProtocol": "http"
+        }
+      ],
+      "essential": true,
+      "entryPoint": [
+        "java",
+        "-jar",
+        "/app/myapp.jar"
+      ],
+      "environment": [],
+      "environmentFiles": [
+        {
+          "type": "s3",
+          "value": "arn:aws:s3:::table-now-env/prod/.env"
+        }
+      ],
+      "mountPoints": [],
+      "volumesFrom": [],
+      "logConfiguration": {
+        "logDriver": "awslogs",
+        "options": {
+          "awslogs-group": "/ecs/table-now-backend-task",
+          "mode": "non-blocking",
+          "awslogs-create-group": "true",
+          "max-buffer-size": "25m",
+          "awslogs-region": "ap-northeast-2",
+          "awslogs-stream-prefix": "ecs"
+        }
+      },
+      "systemControls": []
+    }
+  ],
+  "taskRoleArn": "arn:aws:iam::257394467546:role/ecsTaskExecutionRole",
+  "executionRoleArn": "arn:aws:iam::257394467546:role/ecsTaskExecutionRole",
+  "networkMode": "awsvpc",
+  "volumes": [],
+  "placementConstraints": [],
+  "requiresCompatibilities": [
+    "FARGATE"
+  ],
+  "cpu": "1024",
+  "memory": "3072",
+  "runtimePlatform": {
+    "cpuArchitecture": "X86_64",
+    "operatingSystemFamily": "LINUX"
+  },
+  "enableFaultInjection": false
+}

.github/workflows/deploy.yml

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+name: Deploy to ECS
+
+on:
+  push:
+    branches:
+      - main  # 또는 배포 브랜치명
+
+jobs:
+  deploy:
+    name: Build & Deploy to Amazon ECS
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v3
+
+      - name: Configure AWS credentials
+        uses: aws-actions/configure-aws-credentials@v2
+        with:
+          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+          aws-region: ${{ secrets.AWS_REGION }}
+
+      - name: Login to Amazon ECR
+        uses: aws-actions/amazon-ecr-login@v1
+
+      - name: Build and push Docker image to Amazon ECR
+        id: build-image
+        run: |
+          IMAGE_TAG=$(date +%s)
+          echo "IMAGE_TAG=$IMAGE_TAG" >> $GITHUB_ENV
+          docker build -t ${{ secrets.ECR_REPOSITORY }}:$IMAGE_TAG .
+          docker tag ${{ secrets.ECR_REPOSITORY }}:$IMAGE_TAG ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.${{ secrets.AWS_REGION }}.amazonaws.com/${{ secrets.ECR_REPOSITORY }}:$IMAGE_TAG
+          docker push ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.${{ secrets.AWS_REGION }}.amazonaws.com/${{ secrets.ECR_REPOSITORY }}:$IMAGE_TAG
+
+      - name: Render new ECS task definition with new image
+        id: render-task-def
+        uses: aws-actions/amazon-ecs-render-task-definition@v1
+        with:
+          task-definition: .github/ecs/taskdef.json
+          container-name: app-container
+          image: ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.${{ secrets.AWS_REGION }}.amazonaws.com/${{ secrets.ECR_REPOSITORY }}:${{ env.IMAGE_TAG }}
+
+      - name: Deploy ECS service
+        uses: aws-actions/amazon-ecs-deploy-task-definition@v1
+        with:
+          cluster: ${{ secrets.ECS_CLUSTER_NAME }}
+          service: ${{ secrets.ECS_SERVICE_NAME }}
+          task-definition: ${{ steps.render-task-def.outputs.task-definition }}
+
+      - name: Notify Slack on success
+        if: success()
+        run: |
+          curl -X POST -H 'Content-type: application/json' \
+          --data '{"text":"✅ ECS 배포 성공: `${{ github.repository }}` - `${{ github.ref_name }}`"}' \
+          ${{ secrets.SLACK_WEBHOOK_URL }}
+
+      - name: Notify Slack on failure
+        if: failure()
+        run: |
+          curl -X POST -H 'Content-type: application/json' \
+          --data '{"text":"❌ ECS 배포 실패: `${{ github.repository }}` - `${{ github.ref_name }}`"}' \
+          ${{ secrets.SLACK_WEBHOOK_URL }}