Add kubelet --volume-plugin-dir flag on bare-metal

* Kubelet will search path for flexvolume plugins

bare-metal/container-linux/kubernetes/cl/controller.yaml.tmpl

@@ -73,6 +73,7 @@ systemd:
         ExecStartPre=/bin/mkdir -p /etc/kubernetes/checkpoint-secrets
         ExecStartPre=/bin/mkdir -p /etc/kubernetes/inactive-manifests
         ExecStartPre=/bin/mkdir -p /var/lib/cni
+        ExecStartPre=/bin/mkdir -p /var/lib/kubelet/volumeplugins
         ExecStartPre=/usr/bin/bash -c "grep 'certificate-authority-data' /etc/kubernetes/kubeconfig | awk '{print $2}' | base64 -d > /etc/kubernetes/ca.crt"
         ExecStartPre=-/usr/bin/rkt rm --uuid-file=/var/cache/kubelet-pod.uuid
         ExecStart=/usr/lib/coreos/kubelet-wrapper \
@@ -89,7 +90,8 @@ systemd:
           --network-plugin=cni \
           --node-labels=node-role.kubernetes.io/master \
           --pod-manifest-path=/etc/kubernetes/manifests \
-          --register-with-taints=node-role.kubernetes.io/master=:NoSchedule
+          --register-with-taints=node-role.kubernetes.io/master=:NoSchedule \
+          --volume-plugin-dir=/var/lib/kubelet/volumeplugins
         ExecStop=-/usr/bin/rkt stop --uuid-file=/var/cache/kubelet-pod.uuid
         Restart=always
         RestartSec=10

bare-metal/container-linux/kubernetes/cl/worker.yaml.tmpl

@@ -50,6 +50,7 @@ systemd:
         ExecStartPre=/bin/mkdir -p /etc/kubernetes/checkpoint-secrets
         ExecStartPre=/bin/mkdir -p /etc/kubernetes/inactive-manifests
         ExecStartPre=/bin/mkdir -p /var/lib/cni
+        ExecStartPre=/bin/mkdir -p /var/lib/kubelet/volumeplugins
         ExecStartPre=/usr/bin/bash -c "grep 'certificate-authority-data' /etc/kubernetes/kubeconfig | awk '{print $2}' | base64 -d > /etc/kubernetes/ca.crt"
         ExecStartPre=-/usr/bin/rkt rm --uuid-file=/var/cache/kubelet-pod.uuid
         ExecStart=/usr/lib/coreos/kubelet-wrapper \
@@ -65,7 +66,8 @@ systemd:
           --lock-file=/var/run/lock/kubelet.lock \
           --network-plugin=cni \
           --node-labels=node-role.kubernetes.io/node \
-          --pod-manifest-path=/etc/kubernetes/manifests
+          --pod-manifest-path=/etc/kubernetes/manifests \
+          --volume-plugin-dir=/var/lib/kubelet/volumeplugins
         ExecStop=-/usr/bin/rkt stop --uuid-file=/var/cache/kubelet-pod.uuid
         Restart=always
         RestartSec=5

bare-metal/container-linux/pxe-worker/cl/bootkube-worker.yaml.tmpl

@@ -50,6 +50,7 @@ systemd:
         ExecStartPre=/bin/mkdir -p /etc/kubernetes/checkpoint-secrets
         ExecStartPre=/bin/mkdir -p /etc/kubernetes/inactive-manifests
         ExecStartPre=/bin/mkdir -p /var/lib/cni
+        ExecStartPre=/bin/mkdir -p /var/lib/kubelet/volumeplugins
         ExecStartPre=/usr/bin/bash -c "grep 'certificate-authority-data' /etc/kubernetes/kubeconfig | awk '{print $2}' | base64 -d > /etc/kubernetes/ca.crt"
         ExecStartPre=-/usr/bin/rkt rm --uuid-file=/var/cache/kubelet-pod.uuid
         ExecStart=/usr/lib/coreos/kubelet-wrapper \
@@ -65,7 +66,8 @@ systemd:
           --lock-file=/var/run/lock/kubelet.lock \
           --network-plugin=cni \
           --node-labels=node-role.kubernetes.io/node \
-          --pod-manifest-path=/etc/kubernetes/manifests
+          --pod-manifest-path=/etc/kubernetes/manifests \
+          --volume-plugin-dir=/var/lib/kubelet/volumeplugins
         ExecStop=-/usr/bin/rkt stop --uuid-file=/var/cache/kubelet-pod.uuid
         Restart=always
         RestartSec=5