Fix zun-api logging and state_path

Zun-api is using app.wsgi as log filename.
This change forzes zun-api.log to ease identification.
Also changes group owner of log dir to kolla group.
Remove glance version as is in zun's defaults
Set state_path, this is where zun will store catched images,
similar as nova cache. No need HA or volume as is only
cached data.

Change-Id: I20f8d311bfde1c0a07d7d35e9f1412c71efa8504

ansible/roles/common/templates/conf/filter/01-rewrite.conf.j2

@@ -25,6 +25,6 @@
     rewriterule22 programname ^(watcher-api|watcher-applier|watcher-db-manage|watcher-decision-engine).* openstack_python
     rewriterule23 programname ^(freezer-api|freezer-api_access|freezer-manage).* openstack_python
     rewriterule24 programname ^(octavia-api|octavia-health-manager|octavia-housekeeping|octavia-worker).* openstack_python
-    rewriterule25 programname ^(zun-compute).* openstack_python
+    rewriterule25 programname ^(zun-api|zun-compute).* openstack_python
     rewriterule26 programname ^(kuryr-server).* openstack_python
 </match>

ansible/roles/zun/templates/zun-api.json.j2

@@ -26,7 +26,7 @@
     "permissions": [
         {
             "path": "/var/log/kolla/zun",
-            "owner": "zun:zun",
+            "owner": "zun:kolla",
             "recurse": true
         }
     ]

ansible/roles/zun/templates/zun-compute.json.j2

@@ -18,7 +18,7 @@
     "permissions": [
         {
             "path": "/var/log/kolla/zun",
-            "owner": "zun:zun",
+            "owner": "zun:kolla",
             "recurse": true
         }
     ]

ansible/roles/zun/templates/zun.conf.j2

@@ -1,8 +1,15 @@
 [DEFAULT]
 debug = {{ zun_logging_debug }}
+
+{% if service_name == 'zun-api' %}
+# Force zun-api.log or will use app.wsgi
+log_file = /var/log/kolla/zun/zun-api.log
+{% endif %}
+
 log_dir = /var/log/kolla/zun
 transport_url = rabbit://{% for host in groups['rabbitmq'] %}{{ rabbitmq_user }}:{{ rabbitmq_password }}@{% if orchestration_engine == 'KUBERNETES' %}rabbitmq{% else %}{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}{% endif %}:{{ rabbitmq_port }}{% if not loop.last %},{% endif %}{% endfor %}
 
+state_path = /var/lib/zun
 container_driver = docker.driver.DockerDriver
 image_driver_list = glance
 db_type = sql
@@ -67,7 +74,6 @@ username = {{ zun_keystone_user }}
 password = {{ zun_keystone_password }}
 region_name = {{ openstack_region_name }}
 endpoint_type = internalURL
-api_version = 2
 
 [neutron_client]
 auth_uri = {{ internal_protocol }}://{{ kolla_internal_fqdn }}:{{ keystone_public_port }}