Set dnsPolicy to ClusterFirstWithHostNet when hostNetwork is true (#4843)

roles/network_plugin/contiv/templates/contiv-api-proxy.yml.j2

@@ -22,6 +22,7 @@ spec:
       # The API proxy must run in the host network namespace so that
       # it isn't governed by policy that would prevent it from working.
       hostNetwork: true
+      dnsPolicy: ClusterFirstWithHostNet
       hostPID: true
       nodeSelector:
         node-role.kubernetes.io/master: ""

roles/network_plugin/contiv/templates/contiv-cleanup.yml.j2

@@ -19,6 +19,7 @@ spec:
       priorityClassName: system-node-critical
 {% endif %}
       hostNetwork: true
+      dnsPolicy: ClusterFirstWithHostNet
       hostPID: true
       tolerations:
         - operator: Exists

roles/network_plugin/contiv/templates/contiv-etcd-proxy.yml.j2

@@ -19,6 +19,7 @@ spec:
       priorityClassName: system-node-critical
 {% endif %}
       hostNetwork: true
+      dnsPolicy: ClusterFirstWithHostNet
       hostPID: true
       affinity:
        nodeAffinity:

roles/network_plugin/contiv/templates/contiv-etcd.yml.j2

@@ -19,6 +19,7 @@ spec:
       priorityClassName: system-node-critical
 {% endif %}
       hostNetwork: true
+      dnsPolicy: ClusterFirstWithHostNet
       hostPID: true
       nodeSelector:
         node-role.kubernetes.io/master: ""

roles/network_plugin/contiv/templates/contiv-netmaster.yml.j2

@@ -22,6 +22,7 @@ spec:
       # The netmaster must run in the host network namespace so that
       # it isn't governed by policy that would prevent it from working.
       hostNetwork: true
+      dnsPolicy: ClusterFirstWithHostNet
       hostPID: true
       nodeSelector:
         node-role.kubernetes.io/master: ""

roles/network_plugin/contiv/templates/contiv-netplugin.yml.j2

@@ -24,6 +24,7 @@ spec:
       priorityClassName: system-node-critical
 {% endif %}
       hostNetwork: true
+      dnsPolicy: ClusterFirstWithHostNet
       hostPID: true
       tolerations:
         - operator: Exists

roles/network_plugin/contiv/templates/contiv-ovs.yml.j2

@@ -21,6 +21,7 @@ spec:
       priorityClassName: system-node-critical
 {% endif %}
       hostNetwork: true
+      dnsPolicy: ClusterFirstWithHostNet
       hostPID: true
       tolerations:
         - operator: Exists