Verify docker image (#25)

Verify the app in docker image starts correctly.

Cloudant credentials are passed to docker container with -e option from the environment variables.

curl -4 will use IPv4 only as a workaround to curl issues with ignored retry after Connection refused.
@see curl/curl#5080 Retry completely ignored in docker container

.circleci/config.yml

@@ -7,10 +7,10 @@ version: 2.1
 parameters:
  publish-docker-image:
  type: boolean
- default: false
+ default: true
  image-tag:
  type: string
- default: << pipeline.git.branch >>
+ default: "test" # << pipeline.git.branch >>
 
 jobs:
  run-tests:
@@ -77,13 +77,24 @@ jobs:
  - setup_remote_docker
 
  - run:
- name: "Building and publishing docker image"
+ name: "Building docker image"
  command: |
  IMAGE_FULL_NAME=$DOCKER_USER/$IMAGE_NAME
  IMAGE_ID=$(docker build . -q -t $IMAGE_FULL_NAME)
  docker tag $IMAGE_ID $IMAGE_FULL_NAME:$TAG
+
+ - run:
+ name: "Starting the service and checking that it’s running"
+ command: |
+ echo $IBM_DB_URL
+ docker run -it -d -p 8080:8080 -e IBM_IAM_KEY -e IBM_DB_URL --name be-neutral $DOCKER_USER/$IMAGE_NAME
+ docker exec be-neutral curl -4 --retry 10 --retry-connrefused http://localhost:8080
+
+ - run:
+ name: "Publishing docker image"
+ command: |
  echo $DOCKER_PASS | docker login -u $DOCKER_USER --password-stdin
- docker push $IMAGE_FULL_NAME
+ docker push $DOCKER_USER/$IMAGE_NAME
 
 workflows:
  version: 2.1

README.md

@@ -9,17 +9,17 @@ http://www.beNeutral.eu
 How to start the BeNeutral application
 -------------------------
 
-1. You will need IBM Cloudant database credentials. \
-  `export IBM_DB_URL=your-cloudant-db-url` \
- `export IBM_IAM_KEY=your-ibm-iam-key` \
- alternatively, put your url and iamKey directly in `/config.yml` and `/src/test/resources/test-config.yml` 
-  
+1. You will need IBM Cloudant database credentials. The app config file expects them as the environment variables.
+ ```
+ export IBM_DB_URL=your-cloudant-db-url
+ export IBM_IAM_KEY=your-ibm-iam-key
+ ```
 1. To run the application, you can either build and run it in your env or run it in a container. Either way, the BeNeutral banner in the log indicates the server is up.
  * Un-containerized app server
  1. Run `mvn package` to build the application
  1. Start application with `java -jar target/be-neutral-1.0-SNAPSHOT.jar server config.yml`
  * Run the server in a docker container, using the latest image from the master branch, published to dockerhub: \
- `docker run -p 8080:8080 -p 8081:8081 marihak/be-neutral`
+ `docker run -p 8080:8080 -p 8081:8081 -e IBM_IAM_KEY -e IBM_DB_URL marihak/be-neutral`
 
 1. To check that the application is running enter url `http://localhost:8080/api/v1/`
 1. You can find api documentation at `http://localhost:8080/api/v1/swagger`