Support 'require_online' flag for roles on UI

Related-bug: #1461136

Change-Id: I8ab6dc4bed1acb75d2af7c159c9c6fbca4a33c0c

nailgun/nailgun/fixtures/openstack.yaml

@@ -26,6 +26,7 @@
           - compute
           - cinder
         has_primary: true
+        require_online: true
         limits:
           min: 1
           overrides:

nailgun/static/js/views/dialogs.jsx

@@ -346,6 +346,21 @@ function($, _, i18n, Backbone, React, utils, models, dispatcher, controls, compo
                 } else if (networkVerificationTask.match({status: 'running'})) {
                     return makeComponent(i18n(this.ns + 'verification_in_progress'));
                 }
+            },
+            // Offline nodes
+            function(cluster) {
+                var messages = [],
+                    nodes = cluster.get('nodes');
+                cluster.get('release').get('role_models').each(function(role) {
+                    if (role.get('require_online')) {
+                        nodes.each(function(node) {
+                            if (!node.get('online') && !node.get('pending_deletion') && node.hasRole(role.get('name'))) {
+                                messages.push(i18n(this.ns + 'offline_nodes', {roleName: role.get('label')}));
+                            }
+                        }, this);
+                    }
+                }, this);
+                return {blocker: messages};
             }
         ],
         validate: function(cluster) {

nailgun/static/translations/core.json

@@ -690,7 +690,8 @@
                     "get_more_info": "For more information please visit the",
                     "networks_link": "Networks tab",
                     "invalid_settings": "Environment settings are invalid.",
-                    "settings_link": "Settings tab"
+                    "settings_link": "Settings tab",
+                    "offline_nodes": "All __roleName__ nodes must be online."
                 },
                 "show_node": {
                     "manufacturer_label": "Manufacturer",