Fix path for calico get node names (#1816)

roles/network_plugin/calico/tasks/main.yml

@@ -8,9 +8,10 @@
 
 - name: Calico | Get kubelet hostname
   shell: >-
-    kubectl get node -o custom-columns='NAME:.metadata.name,INTERNAL-IP:.status.addresses[?(@.type=="InternalIP")].address'
-    | egrep "[[:space:]]{{ ansible_all_ipv4_addresses | join('[[:space:]]|[[:space:]]') }}[[:space:]]*$" | cut -d" " -f1
+    {{ bin_dir }}/kubectl get node -o custom-columns='NAME:.metadata.name,INTERNAL-IP:.status.addresses[?(@.type=="InternalIP")].address'
+    | egrep "{{ ansible_all_ipv4_addresses | join('$|') }}$" | cut -d" " -f1
   register: calico_kubelet_name
+  delegate_to: "{{ groups['kube-master'][0] }}"
   when: cloud_provider is defined
 
 - name: Calico | Write Calico cni config