Continuous Delivery with Docker and Jenkins

Steps

Steps are the most fundamental part of the pipeline. They define the operations that are executed, so they actually tell Jenkins what to do.

• sh: This executes the shell command; actually, it's possible to define almost any operation using sh
• custom: Jenkins offers a lot of operations that can be used as steps (for example, echo); many of them are simply wrappers over the sh command used for convenience; plugins can also define their own operations
• script: This executes a block of the Groovy-based code that can be used for some non-trivial scenarios, where flow control is needed

The complete specification of the available steps can be found at: https://jenkins.io/doc/pipeline/steps/.

Notice that the pipeline syntax is very generic ...