Add HPA to Horizon

Change-Id: I1ce20cb97ce1f4f6175215c7104c4df71c12d54f

openstack_operator/horizon.py

@@ -55,6 +55,8 @@ def create_or_resume(name, spec, **_):
                            name=name, spec=spec)
     utils.create_or_update('horizon/memcached.yml.j2',
                            name=name, spec=spec)
+    utils.create_or_update('horizon/horizontalpodautoscaler.yml.j2',
+                           name=name)
     if "ingress" in spec:
         utils.create_or_update('horizon/ingress.yml.j2',
                                name=name, spec=spec)

openstack_operator/templates/horizon/horizontalpodautoscaler.yml.j2

@@ -0,0 +1,29 @@
+---
+# Copyright 2020 VEXXHOST, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+apiVersion: autoscaling/v1
+kind: HorizontalPodAutoscaler
+metadata:
+  name: keystone-{{ name }}
+  labels:
+    {{ labels("horizon", name) | indent(4) }}
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: horizon-{{ name }}
+  minReplicas: 3
+  maxReplicas: 10
+  targetCPUUtilizationPercentage: 90

openstack_operator/templates/mcrouter/deployment.yml.j2

@@ -60,7 +60,7 @@ spec:
           name: config
       - name: exporter
         image: vexxhost/mcrouter_exporter:latest
-        args: ["-mcrouter.address", "localhost:11211", "-mcrouter.timeout", "3s"]
+        args: ["-mcrouter.address", "127.0.0.1:11211", "-mcrouter.timeout", "3s"]
         imagePullPolicy: Always
         ports:
         - name: metrics

playbooks/functional/pre.yaml

@@ -17,5 +17,5 @@
 - hosts: all
   roles:
     - role: clear-firewall
-    - role: install-kubernetes
+    - role: ensure-kubernetes
     - role: ensure-helm