Add Network Isolation

This patch adds the ability for the operator to selectively enable
network isolation.  If enabled, the network isolation environment
file is read from tripleo-heat-templates and appended to the
plan.environment.

Change-Id: I56874f185ff9c36009e28332ad901ac2ffb1fb40

tuskar_ui/infrastructure/overview/forms.py

@@ -283,6 +283,10 @@ class ScaleOut(EditPlan):
 
 
 class DeployOvercloud(horizon.forms.SelfHandlingForm):
+    network_isolation = horizon.forms.BooleanField(
+        label=_("Enable Network Isolation"),
+        required=False)
+
     def handle(self, request, data):
         try:
             plan = api.tuskar.Plan.get_the_plan(request)
@@ -292,6 +296,21 @@ class DeployOvercloud(horizon.forms.SelfHandlingForm):
                                       _("Unable to deploy overcloud."))
             return False
 
+        # If network isolation selected, read environment file data
+        # and add to plan
+        env_temp = '/usr/share/openstack-tripleo-heat-templates/environments'
+        try:
+            if self.cleaned_data['network_isolation']:
+                with open(env_temp, 'r') as env_file:
+                    env_contents = ''.join(
+                        [line for line in
+                         env_file.readlines() if '#' not in line]
+                    )
+                    plan.environment += env_contents
+        except Exception as e:
+            LOG.exception(e)
+            pass
+
         # Auto-generate missing passwords and certificates
         if plan.list_generated_parameters():
             generated_params = plan.make_generated_parameters()

tuskar_ui/infrastructure/templates/infrastructure/overview/_deploy_confirmation.html

@@ -23,6 +23,13 @@
       </li></ul>
     </div>
   {% endif %}
+</div>
+<div>
+  <fieldset>
+    <div class="left">
+      {% include "horizon/common/_form_fields.html" %}
+    </div>
+  </fieldset>
   <br /><br />
   <div class="alert alert-warning">
     <i class="fa fa-exclamation-triangle fa-3x pull-left text-warning"></i>