kubeadm: modify how component volumes are printed

After the shift for init phases, GetStaticPodSpecs() from
app/phases/controlplane/manifests.go gets called on each control-plane
component sub-phase. This ends up calling the Printf from
AddExtraHostPathMounts() in app/phases/controlplane/volumes.go
multiple times printing the same volumes for different components.

- Remove the Printf call from AddExtraHostPathMounts().
- Print all volumes for a component in CreateStaticPodFiles() using klog
V(2).

Perhaps in the future a bigger refactor is needed here were a
single control-plane component spec can be requested instead of a
map[string]v1.Pod.

cmd/kubeadm/app/phases/controlplane/manifests.go

@@ -99,6 +99,11 @@ func CreateStaticPodFiles(manifestDir, kustomizeDir string, cfg *kubeadmapi.Clus
 			return errors.Errorf("couldn't retrieve StaticPodSpec for %q", componentName)
 		}
 
+		// print all volumes that are mounted
+		for _, v := range spec.Spec.Volumes {
+			klog.V(2).Infof("[control-plane] adding volume %q for component %q", v.Name, componentName)
+		}
+
 		// if kustomizeDir is defined, customize the static pod manifest
 		if kustomizeDir != "" {
 			kustomizedSpec, err := staticpodutil.KustomizeStaticPod(&spec, kustomizeDir)

cmd/kubeadm/app/phases/controlplane/volumes.go

@@ -144,7 +144,6 @@ func (c *controlPlaneHostPathMounts) AddHostPathMounts(component string, vols []
 // paths in the case that a user specifies the same volume/volume mount name.
 func (c *controlPlaneHostPathMounts) AddExtraHostPathMounts(component string, extraVols []kubeadmapi.HostPathMount) {
 	for _, extraVol := range extraVols {
-		fmt.Printf("[control-plane] Adding extra host path mount %q to %q\n", extraVol.Name, component)
 		hostPathType := extraVol.PathType
 		c.NewHostPathMount(component, extraVol.Name, extraVol.HostPath, extraVol.MountPath, extraVol.ReadOnly, &hostPathType)
 	}