agents: queue: hosted steps: - label: ":rspec: Tests :ruby: {{matrix}}" command: - "bundle" - "bundle exec rake" plugins: - docker#v3.7.0: image: "public.ecr.aws/docker/library/ruby:{{matrix}}" matrix: - "latest" - "3.3" - "3.2" - "3.1" - "3.0" - "2.7" - group: ":rspec: Legacy Ruby :ruby:" steps: - label: ":rspec: Tests :ruby: {{matrix}}" command: - "gem install bundler:2.3.25" - "bundle" - "bundle exec rake" plugins: - docker#v3.7.0: # Images for older Ruby versions aren't available on AWS ECR # so fall back to Docker Hub image: "ruby:{{matrix}}" matrix: - "2.6" - "2.5" - "2.4" - "2.3"