client: disable cpuset cgroup managment if init fails

client/client.go

@@ -646,7 +646,7 @@ func (c *Client) init() error {
 			// if the client cannot initialize the cgroup then reserved cores will not be reported and the cpuset manager
 			// will be disabled. this is common when running in dev mode under a non-root user for example
 			c.logger.Warn("could not initialize cpuset cgroup subsystem, cpuset management disabled", "error", err)
-			c.config.DisableCgroupManagement = true
+			c.cpusetManager = cgutil.NoopCpusetManager()
 		}
 	}
 	return nil

client/config/config.go

@@ -274,10 +274,6 @@ type Config struct {
 
 	// ReservableCores if set overrides the set of reservable cores reported in fingerprinting.
 	ReservableCores []uint16
-
-	// DisableCgroupManagement if true disables all management of cgroup subsystems by the Nomad client. It does
-	// not prevent individual drivers from manging their own cgroups.
-	DisableCgroupManagement bool
 }
 
 type ClientTemplateConfig struct {