Continuous integration (Continuous Integration, CI): Code merger, build, deploy, test all together, continue to perform this procedure, and the results feedback.
Continuous deployment (Continuous Deployment, CD): deploying to the test environment, pre-production environment, production environment.
Continuous Delivery (Continuous Delivery, CD): The final product is released into the production environment, to users.
Efficient CI / CD environment can be obtained:
• Timely detection of problems
• greatly reduce the failure rate
• accelerate the speed of iteration
• reduce the time costs
