CircieCI to build and push docker image to dockerhub upon github tag …

…release and latest (#39)

Co-authored-by: Somanath Hugar <[email protected]>

.circleci/config.yml

@@ -9,31 +9,35 @@ jobs:
     executor: docker-executor
     environment:
       JVM_OPTS: -Xmx512m
-      TERM: dumb
+      TERM: dumb  
+      GITHUB_TOKEN: ${GITHUB_TOKEN}  # Add the GitHub token as an environment variable
 
     steps:
       - checkout
-      # Install Docker to build and push the image
       - setup_remote_docker:
           version: 20.10.14
-
-      # Build the Docker image
       - run:
-          name: Build Docker image
+          name: Build and Push Docker tag Image
           command: |
-            ./gradlew bootJar
-            docker build -t openmf/ph-ee-connector-ams-mifos:${CIRCLE_TAG} .
+            # Set environment variables
+            IMAGE_TAG=$CIRCLE_TAG
 
-      # Log in to DockerHub using environment variables
-      - run:
-          name: Login to DockerHub
-          command: echo "${DOCKERHUB_PASSWORD}" | docker login -u "${DOCKERHUB_USERNAME}" --password-stdin
+            # Check if the Docker image with the same tag already exists in Docker Hub
+            if curl -s -f -u "$DOCKERHUB_USERNAME":"$DOCKERHUB_PASSWORD" "https://hub.docker.com/v2/repositories/openmf/ph-ee-connector-ams-mifos/tags/$IMAGE_TAG" > /dev/null; then
+              echo "Skipping the build and push as the tag $IMAGE_TAG already exists in Docker Hub."
+              exit 0
+            fi
 
-      # Push the Docker image to DockerHub
-      - run:
-          name: Push Docker image to DockerHub
-          command: docker push openmf/ph-ee-connector-ams-mifos:${CIRCLE_TAG}
+            # Build and tag the Docker image
+            ./gradlew bootJar
+            docker build -t "openmf/ph-ee-connector-ams-mifos:$IMAGE_TAG" .
 
+            # Push the Docker image to Docker Hub
+            docker login -u "$DOCKERHUB_USERNAME" -p "$DOCKERHUB_PASSWORD"
+            docker push "openmf/ph-ee-connector-ams-mifos:$IMAGE_TAG"
+
+          # when: always  # The job will be executed even if there's no match for the tag filter
+
   build_and_push_latest_image:
     executor: docker-executor
     environment:
@@ -50,6 +54,7 @@ jobs:
       - run:
           name: Build Docker image
           command: |
+            IMAGE_TAG=$CIRCLE_TAG
             ./gradlew bootJar
             docker build -t openmf/ph-ee-connector-ams-mifos:latest .
 
@@ -65,15 +70,15 @@ jobs:
 
 workflows:
   version: 2
-  build_and_push:
+  build-and-push:
     jobs:
       - build_and_push_tag_image:
           filters:
             tags:
-              only: /^v\d+\.\d+\.\d+$/ # This regex will match tags in the format 'vX.X.X', e.g., v1.2.3
+              only: /^v\d+\.\d+\.\d+$/  # Match tags in the format v1.2.3
           context:
-            - DOCKER
-
+              - DOCKER
       - build_and_push_latest_image:
           context:
-            - DOCKER
+              - DOCKER
+