fix start CoreDNS when init secondary master (#4867)

roles/kubernetes/master/tasks/kubeadm-secondary-legacy.yml

@@ -31,7 +31,7 @@
   when: inventory_hostname != groups['kube-master']|first
 
 - name: kubeadm | Init other uninitialized masters
-  command: timeout -k 600s 600s {{ bin_dir }}/kubeadm init --config={{ kube_config_dir }}/kubeadm-config.yaml --ignore-preflight-errors=all
+  command: timeout -k 600s 600s {{ bin_dir }}/kubeadm init --config={{ kube_config_dir }}/kubeadm-config.yaml --ignore-preflight-errors=all --skip-phases=addon/coredns
   register: kubeadm_init
   retries: 10
   until: kubeadm_init is succeeded or "field is immutable" in kubeadm_init.stderr