Fix PodPidsLimit and ConfigTrialDuration on internal KubeletConfig type

They should both follow the convention of not being a pointer on the
internal type. This required adding a conversion function between
`int64` and `*int64`.

A side effect is this removes a warning in the generated code for the
apps API group.

cmd/kubelet/app/options/options.go

@@ -476,7 +476,7 @@ func AddKubeletConfigFlags(fs *pflag.FlagSet, c *kubeletconfig.KubeletConfigurat
 	fs.Int32Var(&c.MaxPods, "max-pods", c.MaxPods, "Number of Pods that can run on this Kubelet.")
 
 	fs.StringVar(&c.PodCIDR, "pod-cidr", c.PodCIDR, "The CIDR to use for pod IP addresses, only used in standalone mode.  In cluster mode, this is obtained from the master.")
-	fs.Int64Var(c.PodPidsLimit, "pod-max-pids", *c.PodPidsLimit, "<Warning: Alpha feature> Set the maximum number of processes per pod.")
+	fs.Int64Var(&c.PodPidsLimit, "pod-max-pids", c.PodPidsLimit, "<Warning: Alpha feature> Set the maximum number of processes per pod.")
 
 	fs.StringVar(&c.ResolverConfig, "resolv-conf", c.ResolverConfig, "Resolver configuration file used as the basis for the container DNS resolution configuration.")
 	fs.BoolVar(&c.CPUCFSQuota, "cpu-cfs-quota", c.CPUCFSQuota, "Enable CPU CFS quota enforcement for containers that specify CPU limits")

cmd/kubelet/app/server.go

@@ -653,7 +653,7 @@ func run(s *options.KubeletServer, kubeDeps *kubelet.Dependencies) (err error) {
 				ExperimentalQOSReserved:               *experimentalQOSReserved,
 				ExperimentalCPUManagerPolicy:          s.CPUManagerPolicy,
 				ExperimentalCPUManagerReconcilePeriod: s.CPUManagerReconcilePeriod.Duration,
-				ExperimentalPodPidsLimit:              *s.PodPidsLimit,
+				ExperimentalPodPidsLimit:              s.PodPidsLimit,
 			},
 			s.FailSwapOn,
 			devicePluginEnabled,