Refactor Docker image build process in deployment workflow

- Removed the `enable_recordprocessor` input from the continuous deployment workflow.
- Added a conditional check in the backend deployment workflow to skip the Docker build and push if the image already exists in ECR, improving efficiency and reducing unnecessary builds.

Author: Thomas-Boyle

.github/workflows/continuous-deployment.yml

@@ -20,7 +20,6 @@ jobs:
     uses: ./.github/workflows/deploy-backend.yml
     with:
       apigee_environment: internal-dev
-      enable_recordprocessor: true
       create_mns_subscription: true
       environment: dev
       sub_environment: internal-dev

.github/workflows/deploy-backend.yml

@@ -99,8 +99,12 @@ jobs:
 
           IMAGE_URI="${ECR_REGISTRY}/${REPOSITORY_NAME}:${IMAGE_TAG}"
 
-          docker build -f recordprocessor/Dockerfile -t "${IMAGE_URI}" .
-          docker push "${IMAGE_URI}"
+          if aws ecr describe-images --repository-name "${REPOSITORY_NAME}" --image-ids imageTag="${IMAGE_TAG}" --region "${AWS_REGION}" >/dev/null 2>&1; then
+            echo "Image ${IMAGE_TAG} already exists in ECR, skipping build and push"
+          else
+            docker build -f recordprocessor/Dockerfile -t "${IMAGE_URI}" .
+            docker push "${IMAGE_URI}"
+          fi
 
           echo "image_tag=${IMAGE_TAG}" >> "$GITHUB_OUTPUT"