circleci

Best Practices

• Use version 2.1 to enable orbs, reusable commands, and parameters
• Use official CircleCI orbs for common tools (node, python, docker, aws-cli)
• Use cimg/* convenience images (cimg/node, cimg/python) for faster startup
• Cache dependencies with restore_cache/save_cache or orb caching
• Use workflows for parallel job execution and fan-in/fan-out patterns
• Use persist_to_workspace/attach_workspace to pass artifacts between jobs
• Use store_test_results for test summary in CircleCI UI
• Use filters on workflows to control which branches trigger jobs
• Use contexts for shared environment variables across projects
• Use setup_remote_docker for Docker-in-Docker builds
• Use resource_class to right-size job compute (small, medium, large, xlarge)
• Use parameters for reusable job configurations

Documentation Sources