man: document new varlink service

[thirdparty/systemd.git] / docs / USER_GROUP_API.md

diff --git a/docs/USER_GROUP_API.md b/docs/USER_GROUP_API.md
index 55f6af7d8ea534052ec467bc5a1ef516f22195e6..ca88b3a16d9ce1732360d9f8b0b3feda4bc4ac86 100644 (file)
--- a/docs/USER_GROUP_API.md
+++ b/docs/USER_GROUP_API.md
@@ -108,7 +108,7 @@ example, introspection is not available, and the resolver logic is not used.
 
 ## Other Services
 
-The `systemd` project provides two other services implementing this
+The `systemd` project provides three other services implementing this
 interface. Specifically:
 
 1. `io.systemd.DynamicUser` → This service is implemented by the service
@@ -119,6 +119,10 @@ interface. Specifically:
    and provides records for the users and groups defined by the home
    directories it manages.
 
+3. `io.systemd.Machine` → This service is implemented by
+   `systemd-machined.service` and provides records for the users and groups used
+   by local containers that use user namespacing.
+
 Other projects are invited to implement these services too. For example it
 would make sense for LDAP/ActiveDirectory projects to implement these
 interfaces, which would provide them a way to do per-user resource management