version: 2.1

references:
  # environment specific references - aim to avoid conflicts
  go-machine-image: &go_machine_image
    circleci/classic:201808-01
  go-machine-recent-image: &go_machine_recent_image
    ubuntu-1604:201903-01

  # common references
  common_envs: &common_envs
    GOMAXPROCS: 1
    NOMAD_SLOW_TEST: 1
    GOTESTSUM_JUNITFILE: /tmp/test-reports/results.xml
    # disable implicit git paging.  CircleCI runs commands with in a tty
    # making git assume it's an interactive session.
    PAGER: cat
    GIT_PAGER: cat

executors:
  go:
    working_directory: /go/src/github.com/hashicorp/nomad
    docker:
      - image: golang:1.14.1
    environment:
      <<: *common_envs
      GOPATH: /go

  go-machine:
    working_directory: ~/go/src/github.com/hashicorp/nomad
    machine:
      image: *go_machine_image
    environment: &machine_env
      <<: *common_envs
      GOPATH: /home/circleci/go
      GOLANG_VERSION: 1.14.1

  # uses a more recent image with unattended upgrades disabled properly
  # but seems to break docker builds
  go-machine-recent:
    working_directory: ~/go/src/github.com/hashicorp/nomad
    machine:
      image: *go_machine_recent_image
    environment: *machine_env