Sample CircleCI configuration

config.yml

version: 2

jobs:
  build:
    environment:
      - TEST: true
    docker:
      - image: debian:stretch

    steps:
      - checkout

      - run:
          name: Print env var
          command: echo $TEST

      - run:
          name: Print the Current Time
          command: date

workflows:
  version: 2
  suite:
    jobs:
      - build:
          filters:
            branches:
              only:
                - imabranchwhichdoesntexist