Add RBAC support for canal (#1604)

Refactored how rbac_enabled is set
Added RBAC to ubuntu-canal-ha CI job
Added rbac for calico policy controller

roles/kubernetes-apps/ansible/templates/netchecker-server-deployment.yml.j2

@@ -25,12 +25,14 @@ spec:
               memory: {{ netchecker_server_memory_requests }}
           ports:
             - containerPort: 8081
-              hostPort: 8081
           args:
             - "-v=5"
             - "-logtostderr"
             - "-kubeproxyinit"
             - "-endpoint=0.0.0.0:8081"
+      tolerations:
+        - effect: NoSchedule
+          operator: Exists
 {% if rbac_enabled %}
       serviceAccountName: netchecker-server
 {% endif %}