Generate a passwd file for users not in container

If someone runs podman as a user (uid) that is not defined in the container
we want generate a passwd file so that getpwuid() will work inside of container.

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/pkg/chrootuser/user.go b/pkg/chrootuser/user.go
index 3de138b86..c83dcc230 100644
--- a/pkg/chrootuser/user.go
+++ b/pkg/chrootuser/user.go
@@ -99,3 +99,10 @@ func GetAdditionalGroupsForUser(rootdir string, userid uint64) ([]uint32, error)
 	}
 	return gids, nil
 }
+
+// LookupUIDInContainer returns username and gid associated with a UID in a container
+// it will use the /etc/passwd files inside of the rootdir
+// to return this information.
+func LookupUIDInContainer(rootdir string, uid uint64) (user string, gid uint64, err error) {
+	return lookupUIDInContainer(rootdir, uid)
+}