Internal change.

PiperOrigin-RevId: 221299066
Change-Id: I8ae352458f9976c329c6946b1efa843a3de0eaa4

runsc/boot/loader.go

@@ -258,7 +258,7 @@ func New(args Args) (*Loader, error) {
 		NetworkStack:                networkStack,
 		ApplicationCores:            uint(args.NumCPU),
 		Vdso:                        vdso,
-		RootUTSNamespace:            kernel.NewUTSNamespace(args.Spec.Hostname, "", creds.UserNamespace),
+		RootUTSNamespace:            kernel.NewUTSNamespace(args.Spec.Hostname, args.Spec.Hostname, creds.UserNamespace),
 		RootIPCNamespace:            kernel.NewIPCNamespace(creds.UserNamespace),
 		RootAbstractSocketNamespace: kernel.NewAbstractSocketNamespace(),
 	}); err != nil {

runsc/test/testutil/testutil.go

@@ -151,6 +151,7 @@ func NewSpecWithArgs(args ...string) *specs.Spec {
 				Source:      TmpDir(),
 			},
 		},
+		Hostname: "runsc-test-" + strings.Join(args, "_"),
 	}
 }