circle.yml

machine:
  environment:
    PROJECT_NAME: cd-test-1300
    CLUSTER_NAME: cd-test-cluster
    CLOUDSDK_COMPUTE_ZONE: europe-west1-d
    DEBIAN_FRONTEND: noninteractive
  services:
    - docker
  node:
    version: 4

dependencies:
  pre:
    # Setup terraform
    - wget https://releases.hashicorp.com/terraform/0.6.15/terraform_0.6.15_linux_amd64.zip
    - unzip terraform_0.6.15_linux_amd64.zip -d ~/bin

    # Update Google cloud tools
    - sudo /opt/google-cloud-sdk/bin/gcloud --quiet components update
    - sudo /opt/google-cloud-sdk/bin/gcloud --quiet components update kubectl

    # Expose Google cloud credentials
    - echo $ACCT_AUTH | base64 --decode -i > ~/account-auth.json

    # Setup dynamic definition
    - envsubst < ./deployment/kubernetes/node-server.origin.json > ./deployment/kubernetes/node-server.json
test:
  override:

    - npm test

    # Build docker image
    - >
      npm build
      npm prune --production
      docker build -t gcr.io/$PROJECT_NAME/node-server:$CIRCLE_SHA1 .

    # Run and test docker image
    # TODO: run a local cluster instead
    - docker run -d -p 8080:8080 gcr.io/$PROJECT_NAME/node-server:$CIRCLE_SHA1; sleep 10
    - curl 'http://localhost:8080'

    # Test terraform config
    - TF_VAR_node_service_ip='93.184.216.34' terraform plan -refresh=false ./deployment/terraform

deployment:
  prod:
    branch: master
    commands:
      # Setup Google cloud
      - gcloud auth activate-service-account --key-file ~/account-auth.json
      - gcloud config set compute/zone $CLOUDSDK_COMPUTE_ZONE
      - gcloud config set project $PROJECT_NAME
      - gcloud --quiet config set container/cluster $CLUSTER_NAME
      - gcloud container clusters get-credentials $CLUSTER_NAME

      # Push image
      - gcloud docker push gcr.io/$PROJECT_NAME/node-server:$CIRCLE_SHA1

      # Pre deploy services setup
      - terraform remote config -backend=s3 -backend-config="bucket=terraform" -backend-config="key=$CIRCLE_PROJECT_REPONAME/$CIRCLE_BRANCH/terraform.tfstate" -backend-config="region=eu-west-1"
      - >
        export TF_VAR_node_service_ip="$(kubectl get services my-service -o jsonpath='{.status.loadBalancer.ingress[0].ip}' || '93.184.216.34')";
        terraform apply ./deployment/terraform || (terraform remote push && exit 1);
      - terraform remote push

      # Deploy
      - kubectl apply -f ./deployment/kubernetes/node-server.json
      - kubectl apply -f ./deployment/kubernetes/node-service.json

      - sleep 10

      # Post deploy services setup
      - >
        export TF_VAR_node_service_ip="$(kubectl get services my-service -o jsonpath='{.status.loadBalancer.ingress[0].ip}')";
        terraform apply ./deployment/terraform || (terraform remote push && exit 1);
      - terraform remote push

      # Logging
      - kubectl cluster-info
      - kubectl get nodes
      - kubectl get deployments
      - kubectl get services
      - kubectl get services my-service
      - kubectl get endpoints
      - kubectl get pods