The Mirror Service
The Config Server service does not clone or pull updates from external Git repositories directly. Within a VMware Tanzu Application Service for VMs (TAS) foundation, a “mirror service” makes a full mirror of each Git repository (“R1”, “R2”, “R3”) used by a Config Server service instance. The Config Server service instance, in turn, clones repositories from this mirror rather than cloning from the external Git server directly.
For information about refreshing the Git mirrors used by a Config Server service instance, see Refreshing Git Mirrors in the Developer Guide.