Add separate API Gateway deployment workflow

Author: Satej Sawant

.github/workflows/deploy-api-gateway.yml

@@ -0,0 +1,43 @@
+name: Deploy API Gateway
+
+on:
+  push:
+    branches: [main]
+    paths: ['api-gateway/**']
+  workflow_dispatch:
+
+env:
+  AWS_REGION: us-west-2
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+      contents: read
+    
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Configure AWS credentials
+      uses: aws-actions/configure-aws-credentials@v5
+      with:
+        role-to-assume: ${{ secrets.AWS_ROLE_ARN }}
+        aws-region: ${{ env.AWS_REGION }}
+    
+    - name: Login to ECR
+      uses: aws-actions/amazon-ecr-login@v2
+    
+    - name: Build and push image
+      run: |
+        docker build -t ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.us-west-2.amazonaws.com/spookymart-api-gateway:${{ github.sha }} ./api-gateway
+        docker push ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.us-west-2.amazonaws.com/spookymart-api-gateway:${{ github.sha }}
+        
+    - name: Deploy API Gateway
+      uses: aws-actions/amazon-ecs-deploy-express-service@v1
+      with:
+        service-name: spookymart-api-gateway
+        image: ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.us-west-2.amazonaws.com/spookymart-api-gateway:${{ github.sha }}
+        execution-role-arn: ${{ secrets.ECS_EXECUTION_ROLE_ARN }}
+        infrastructure-role-arn: ${{ secrets.ECS_INFRASTRUCTURE_ROLE_ARN }}
+        container-port: 3000