Add action to deploy to ECS after image is built

.github/workflows/main.yml

@@ -33,6 +33,7 @@ jobs:
         uses: battila7/get-version-action@v2.0.0
 
       - name: Build, tag, and push image to Amazon ECR
+        id: build-image
         env:
           ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
           ECR_REPOSITORY: goff
@@ -42,3 +43,20 @@ jobs:
           docker push $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG
           docker tag $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG $ECR_REGISTRY/$ECR_REPOSITORY:latest
           docker push $ECR_REGISTRY/$ECR_REPOSITORY:latest
+          echo "::set-output name=image::$ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG"
+
+      - name: Fill in the new image ID in the Amazon ECS task definition
+        id: task-def
+        uses: aws-actions/amazon-ecs-render-task-definition@v1
+        with:
+          task-definition: task-definition.json
+          container-name: "goff"
+          image: ${{ steps.build-image.outputs.image }}
+
+      - name: Deploy Amazon ECS task definition
+        uses: aws-actions/amazon-ecs-deploy-task-definition@v1
+        with:
+          task-definition: ${{ steps.task-def.outputs.task-definition }}
+          service: "goff"
+          cluster: "discord-bots"
+          wait-for-service-stability: true