Add GitHub Actions Workflow for AWS Deployment

.github/workflows/deploy.yml

@@ -0,0 +1,71 @@
+name: Build and Deploy
+
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - "**/*.md"
+      - ".gitignore"
+      - "LICENSE"
+
+env:
+  AWS_REGION: us-east-1
+  ECR_REPO: aegis
+  ECS_CLUSTER: aegis-cluster
+  ECS_SERVICE: aegis-service
+  CONTAINER_NAME: aegis-container
+
+jobs:
+  deploy:
+    name: Build, push, deploy
+    runs-on: ubuntu-latest
+    environment: prd
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Configure AWS credentials
+        uses: aws-actions/configure-aws-credentials@v4
+        with:
+          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+          aws-region: ${{ env.AWS_REGION }}
+
+      - name: Login to Amazon ECR
+        id: login-ecr
+        uses: aws-actions/amazon-ecr-login@v2
+
+      - name: Build and push image
+        id: build-image
+        env:
+          ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
+          IMAGE_TAG: ${{ github.sha }}
+        run: |
+          docker build -t $ECR_REGISTRY/$ECR_REPO:$IMAGE_TAG .
+          docker push $ECR_REGISTRY/$ECR_REPO:$IMAGE_TAG
+          echo "image=$ECR_REGISTRY/$ECR_REPO:$IMAGE_TAG" >> $GITHUB_OUTPUT
+
+      - name: Download task definition
+        run: |
+          aws ecs describe-task-definition \
+            --task-definition aegis-task \
+            --query taskDefinition \
+            > task-definition.json
+
+      - name: Update ECS task definition with new image
+        id: task-def
+        uses: aws-actions/amazon-ecs-render-task-definition@v1
+        with:
+          task-definition: task-definition.json
+          container-name: ${{ env.CONTAINER_NAME }}
+          image: ${{ steps.build-image.outputs.image }}
+
+      - name: Deploy to ECS
+        uses: aws-actions/amazon-ecs-deploy-task-definition@v1
+        with:
+          task-definition: ${{ steps.task-def.outputs.task-definition }}
+          service: ${{ env.ECS_SERVICE }}
+          cluster: ${{ env.ECS_CLUSTER }}
+          wait-for-service-stability: true