Circleci flask config

version: 2
defaults: &defaults
  docker:
    - image: circleci/python:3.6.2-stretch-browsers
      environment:
        FLASK_APP: app.py
        FLASK_ENV: testing
        PGHOST: 127.0.0.1
        PGUSER: root
    - image: circleci/postgres:10.8-alpine
      environment:
        POSTGRES_USER: root
        POSTGRES_DB: cranecloud_test_db
  working_directory: ~/crane-cloud
  

attach_workspace: &attach_workspace
  attach_workspace:
    at: ~/crane-cloud

filters:
  filters:
    branches:
      only:
        - master
        - develop
        - /(release|hotfix)\/v[0-9].[0-9].[0-9]/

persist_to_workspace: &persist_to_workspace
  persist_to_workspace:
    root: .
    paths: .

build_and_push_image: &build_and_push_image
  run:
    name: build image
    command: |
      export IMG_TAG=$(echo $CIRCLE_SHA1 | cut -c -7)
      docker login -u _json_key -p "$(echo $GCLOUD_SERVICE_KEY)" https://gcr.io
      docker build -f docker/prod/Dockerfile -t gcr.io/$GCP_PROJECT_ID/cranecloud-backend:$IMG_TAG .
      docker push gcr.io/$GCP_PROJECT_ID/cranecloud-backend:$IMG_TAG
configure_gcloud: &configure_gcloud
  run:
    name: configure gcloud default settings
    command: |
      echo $GCLOUD_SERVICE_KEY > ~/crane-cloud/auth_key.json
      gcloud auth activate-service-account --key-file ~/crane-cloud/auth_key.json
      gcloud container clusters get-credentials $cluster --zone us-central1-a --project $GCP_PROJECT_ID
deploy_to_kubernetes: &deploy_to_kubernetes
  run:
    name: update deployment image
    command: |
      export IMG_TAG=$(echo $CIRCLE_SHA1 | cut -c -7)
      ./kubectl set image deployment/cranecloud-backend cranecloud-backend=gcr.io/$GCP_PROJECT_ID/cranecloud-backend:$IMG_TAG --record -n cranecloud
jobs:
  test_and_report:
    <<: *defaults
    steps:
      - checkout
      - *attach_workspace
      - restore_cache:
          keys:
            - o-{{ .Branch }}-{{ checksum "Pipfile.lock" }}
            - o-{{ .Branch }}
            - o
      - run:
          name: install dependencies
          command: |
            sudo pip install pipenv
            pipenv install
      - save_cache:
          key: o-{{ .Branch }}-{{ checksum "Pipfile.lock" }}
          paths:
            - ".venv"
            - "/usr/local/bin"
            - "/usr/local/lib/python3.6/site-packages"
      - run:
          name: run tests
          command: pipenv run nosetests --with-coverage --cover-package=app
      - run:
          name: upload tests coverage
          command: pipenv run codecov
      - *persist_to_workspace

  build_and_deploy_staging:
    docker:
      - image: google/cloud-sdk
        environment:
          GOOGLE_APPLICATION_CREDENTIALS: /root/crane-cloud/auth_key.json
          cluster: staging-cluster
    working_directory: ~/crane-cloud
    steps:
      - *attach_workspace
      - setup_remote_docker
      - run:
          name: install kubectl
          command: |
            curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl
            chmod u+x ./kubectl
      - *configure_gcloud
      - *build_and_push_image
      - *deploy_to_kubernetes

  build_and_deploy_production:
    docker:
      - image: google/cloud-sdk
        environment:
          GOOGLE_APPLICATION_CREDENTIALS: /root/crane-cloud/auth_key.json
          cluster: production-cluster
    working_directory: ~/crane-cloud
    steps:
      - *attach_workspace
      - setup_remote_docker
      - run:
          name: install kubectl
          command: |
            curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl
            chmod u+x ./kubectl
      - *configure_gcloud
      - *build_and_push_image
      - *deploy_to_kubernetes

workflows:
  version: 2
  cranecloud_deployment:
    jobs:
      - test_and_report
      - build_and_deploy_staging:
          requires:
            - test_and_report
          filters:
            branches:
              only: develop-new
      - build_and_deploy_production:
          requires:
            - test_and_report
          filters:
            branches:
              only: master