Source management of builds and release pipeline (Alpha)
Before referencing a builds Task or releases pipeline Stage, you need to store the Task or Stage definition file in a specific space, namely 'source'. Only Tasks and Stages defined in the source can be used to create build and delivery pipelines.
The essence of source is a code repository. To make it easier for project members to understand and maintain the source code, it is recommended that you organize custom task, stage, and template definition files into logical directories according to a certain structure.
Create custom sources to enable project members to reference custom tasks or stages in builds or release pipelines.