Merge "fcos: Mount /:/rootfs:ro to Kubelet"

magnum/drivers/common/templates/kubernetes/fragments/configure-kubernetes-master.sh

@@ -189,6 +189,7 @@ ExecStart=/bin/bash -c '/usr/bin/podman run --name kubelet \\
     --pid host \\
     --network host \\
     --entrypoint /hyperkube \\
+    --volume /:/rootfs:ro \\
     --volume /etc/cni/net.d:/etc/cni/net.d:ro,z \\
     --volume /etc/kubernetes:/etc/kubernetes:ro,z \\
     --volume /usr/lib/os-release:/usr/lib/os-release:ro \\

magnum/drivers/common/templates/kubernetes/fragments/configure-kubernetes-minion.sh

@@ -83,6 +83,7 @@ ExecStart=/bin/bash -c '/usr/bin/podman run --name kubelet \\
     --pid host \\
     --network host \\
     --entrypoint /hyperkube \\
+    --volume /:/rootfs:ro \\
     --volume /etc/cni/net.d:/etc/cni/net.d:ro,z \\
     --volume /etc/kubernetes:/etc/kubernetes:ro,z \\
     --volume /usr/lib/os-release:/usr/lib/os-release:ro \\