Use memcache for consoleauth and horizon

Unfortunately there was no was to avoid memcache for consoleauth, so
we might as well take advantage of it for Horizon as well.

Change-Id: Idd338a025b031f6b50fe0c9f03c2c8d862f9d4c0
Closes-Bug: #1504606
Closes-Bug: #1504800

ansible/group_vars/all.yml

@@ -134,6 +134,7 @@ openstack_auth_v2:
 enable_glance: "yes"
 enable_haproxy: "yes"
 enable_keystone: "yes"
+enable_memcached: "yes"
 enable_mariadb: "yes"
 enable_neutron: "yes"
 enable_nova: "yes"

ansible/roles/horizon/templates/local_settings.j2

@@ -117,21 +117,15 @@ LOCAL_PATH = '/tmp'
 # (usually behind a load-balancer). Either you have to make sure that a session
 # gets all requests routed to the same dashboard instance or you set the same
 # SECRET_KEY for all of them.
-SECRET_KEY='605f2a71e76a686b70eb'
+SECRET_KEY='{{ horizon_secret_key }}'
 
 # We recommend you use memcached for development; otherwise after every reload
 # of the django development server, you will have to login again. To use
 # memcached set CACHES to something like
-#CACHES = {
-#    'default': {
-#        'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
-#        'LOCATION': '127.0.0.1:11211',
-#    }
-#}
-
 CACHES = {
     'default': {
-        'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
+        'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
+        'LOCATION': '{% for host in groups['memcached'] %}{{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ memcached_port }}{% if not loop.last %},{% endif %}{% endfor %}',
     }
 }
 

ansible/roles/nova/templates/nova.conf.j2

@@ -32,6 +32,9 @@ linuxnet_interface_driver = nova.network.linux_net.BridgeInterfaceDriver
 
 allow_resize_to_same_host = true
 
+memcached_servers = {% for host in groups['memcached'] %}{{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ memcached_port }}{% if not loop.last %},{% endif %}{% endfor %}
+
+
 # Though my_ip is not used directly, lots of other variables use $my_ip
 my_ip = {{ hostvars[inventory_hostname]['ansible_' + api_interface]['ipv4']['address'] }}
 

ansible/roles/swift/meta/main.yml

@@ -1,4 +1,3 @@
 ---
 dependencies:
   - { role: common }
-  - { role: memcached }

ansible/site.yml

@@ -7,6 +7,10 @@
   roles:
     - { role: haproxy, tags: haproxy, when: enable_haproxy | bool }
 
+- hosts: memcached
+  roles:
+    - { role: memcached, tags: memcache, memcached, when: enable_memcached | bool }
+
 - hosts: mariadb
   roles:
     - { role: mariadb, tags: mariadb, when: enable_mariadb | bool }

docker/openstack-base/Dockerfile.j2

@@ -93,6 +93,7 @@ RUN curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py \
         python-tuskarclient \
         python-zaqarclient \
         python-openstackclient \
-        MySQL-python
+        MySQL-python \
+        python-memcached
 
 {% endif %}

etc/kolla/passwords.yml

@@ -56,6 +56,7 @@ murano_keystone_password: "password"
 ironic_database_password: "password"
 ironic_keystone_password: "password"
 
+horizon_secret_key: "password"
 
 ####################
 # RabbitMQ options