Adds Instance Peers Tab and update Instance Details view with more data (#12655)

* Adds InstancePeers tab and updates details view

* attempt to fix failing api tests

awx/api/serializers.py

@@ -4919,6 +4919,7 @@ class InstanceSerializer(BaseSerializer):
         res['instance_groups'] = self.reverse('api:instance_instance_groups_list', kwargs={'pk': obj.pk})
         if settings.IS_K8S and obj.node_type in ('execution', 'hop'):
             res['install_bundle'] = self.reverse('api:instance_install_bundle', kwargs={'pk': obj.pk})
+        res['peers'] = self.reverse('api:instance_peers_list', kwargs={"pk": obj.pk})
         if self.context['request'].user.is_superuser or self.context['request'].user.is_system_auditor:
             if obj.node_type != 'hop':
                 res['health_check'] = self.reverse('api:instance_health_check', kwargs={'pk': obj.pk})

awx/api/urls/instance.py

@@ -3,7 +3,15 @@
 
 from django.urls import re_path
 
-from awx.api.views import InstanceList, InstanceDetail, InstanceUnifiedJobsList, InstanceInstanceGroupsList, InstanceHealthCheck, InstanceInstallBundle
+from awx.api.views import (
+    InstanceList,
+    InstanceDetail,
+    InstanceUnifiedJobsList,
+    InstanceInstanceGroupsList,
+    InstanceHealthCheck,
+    InstanceInstallBundle,
+    InstancePeersList,
+)
 
 
 urls = [
@@ -12,6 +20,7 @@ urls = [
     re_path(r'^(?P<pk>[0-9]+)/jobs/$', InstanceUnifiedJobsList.as_view(), name='instance_unified_jobs_list'),
     re_path(r'^(?P<pk>[0-9]+)/instance_groups/$', InstanceInstanceGroupsList.as_view(), name='instance_instance_groups_list'),
     re_path(r'^(?P<pk>[0-9]+)/health_check/$', InstanceHealthCheck.as_view(), name='instance_health_check'),
+    re_path(r'^(?P<pk>[0-9]+)/peers/$', InstancePeersList.as_view(), name='instance_peers_list'),
     re_path(r'^(?P<pk>[0-9]+)/install_bundle/$', InstanceInstallBundle.as_view(), name='instance_install_bundle'),
 ]
 

awx/api/views/__init__.py

@@ -384,6 +384,8 @@ class InstanceDetail(RetrieveUpdateAPIView):
             obj = self.get_object()
             obj.set_capacity_value()
             obj.save(update_fields=['capacity'])
+            for instance in models.Instance.objects.filter(node_type__in=['control', 'hybrid']):
+                models.InstanceLink.objects.create(source=instance, target=obj)
             r.data = serializers.InstanceSerializer(obj, context=self.get_serializer_context()).to_representation(obj)
         return r
 
@@ -402,6 +404,17 @@ class InstanceUnifiedJobsList(SubListAPIView):
         return qs
 
 
+class InstancePeersList(SubListAPIView):
+
+    name = _("Instance Peers")
+    parent_model = models.Instance
+    model = models.Instance
+    serializer_class = serializers.InstanceSerializer
+    parent_access = 'read'
+    search_fields = {'hostname'}
+    relationship = 'peers'
+
+
 class InstanceInstanceGroupsList(InstanceGroupMembershipMixin, SubListCreateAttachDetachAPIView):
 
     name = _("Instance's Instance Groups")