Change to allow cni deployments without openshift SDN

The roles/openshift_facts main task did not pass the cni plugin variable to the later role playbooks.
The master.yaml and node.yaml templates did not allow for a cni configuration without either installing openshift sdn or nuage.

This change will allow to use os_sdn_network_plugin_name=cni and set openshift_use_openshift_sdn=false for deployments that use a cni plugin that doesn't need and want openshift sdn to be installed

roles/openshift_facts/tasks/main.yml

@@ -38,6 +38,8 @@
       no_proxy: "{{ openshift_no_proxy | default(None) }}"
       generate_no_proxy_hosts: "{{ openshift_generate_no_proxy_hosts | default(True) }}"
       no_proxy_internal_hostnames: "{{ openshift_no_proxy_internal_hostnames | default(None) }}"
+      sdn_network_plugin_name: "{{ os_sdn_network_plugin_name | default(None) }}"
+      use_openshift_sdn: "{{ openshift_use_openshift_sdn | default(None) }}"
 
 - name: Set repoquery command
   set_fact:

roles/openshift_master/templates/master.yaml.v1.j2

@@ -158,7 +158,7 @@ masterPublicURL: {{ openshift.master.public_api_url }}
 networkConfig:
   clusterNetworkCIDR: {{ openshift.master.sdn_cluster_network_cidr }}
   hostSubnetLength: {{ openshift.master.sdn_host_subnet_length }}
-{% if openshift.common.use_openshift_sdn or openshift.common.use_nuage %}
+{% if openshift.common.use_openshift_sdn or openshift.common.use_nuage or openshift.common.sdn_network_plugin_name == 'cni' %}
   networkPluginName: {{ openshift.common.sdn_network_plugin_name }}
 {% endif %}
 # serviceNetworkCIDR must match kubernetesMasterConfig.servicesSubnet

roles/openshift_node/templates/node.yaml.v1.j2

@@ -27,7 +27,7 @@ networkPluginName: {{ openshift.common.sdn_network_plugin_name }}
 # deprecates networkPluginName above. The two should match.
 networkConfig:
    mtu: {{ openshift.node.sdn_mtu }}
-{% if openshift.common.use_openshift_sdn | bool or openshift.common.use_nuage | bool %}
+{% if openshift.common.use_openshift_sdn | bool or openshift.common.use_nuage | bool or openshift.common.sdn_network_plugin_name == 'cni' %}
    networkPluginName: {{ openshift.common.sdn_network_plugin_name }}
 {% endif %}
 {% if openshift.node.set_node_ip | bool %}