Add WSGI support for cloudkitty-api

They dropped the cloudkitty-api command line[0], so we should add wsgi
support for cloudkitty-api.

[0]https://review.openstack.org/#/c/366043/

Change-Id: Ie34d4f2d5c303bbd7ac09a8ab9e8d9bdc763c57b
Closes-Bug: #1713879
(cherry picked from commit 2fca630cdb)

ansible/roles/cloudkitty/handlers/main.yml

@@ -19,6 +19,7 @@
     - service.enabled | bool
     - config_json.changed | bool
       or cloudkitty_conf.changed | bool
+      or cloudkitty_conf_wsgi.changed | bool
       or policy_json.changed | bool
       or cloudkitty_api_container.changed | bool
 

ansible/roles/cloudkitty/tasks/config.yml

@@ -44,6 +44,19 @@
     - Restart cloudkitty-api container
     - Restart cloudkitty-processor container
 
+- name: Copying over wsgi-cloudkitty.conf
+  vars:
+    service: "{{ cloudkitty_services['cloudkitty-api'] }}"
+  template:
+    src: "wsgi-cloudkitty.conf.j2"
+    dest: "{{ node_config_directory }}/cloudkitty-api/wsgi-cloudkitty.conf"
+  register: cloudkitty_conf_wsgi
+  when:
+    - inventory_hostname in groups[service.group]
+    - service.enabled | bool
+  notify:
+    - Restart cloudkitty-api container
+
 - name: Check if policies shall be overwritten
   local_action: stat path="{{ node_custom_config }}/cloudkitty/policy.json"
   run_once: True

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

@@ -1,5 +1,7 @@
+{% set cloudkitty_cmd = 'apache2' if kolla_base_distro in ['ubuntu', 'debian'] else 'httpd' %}
+{% set cloudkitty_dir = 'apache2/conf-enabled' if kolla_base_distro in ['ubuntu', 'debian'] else 'httpd/conf.d' %}
 {
-    "command": "cloudkitty-api --config-file /etc/cloudkitty/cloudkitty.conf",
+    "command": "{{ cloudkitty_cmd }} -DFOREGROUND",
     "config_files": [
         {
             "source": "{{ container_config_directory }}/cloudkitty.conf",
@@ -7,6 +9,12 @@
             "owner": "cloudkitty",
             "perm": "0600"
         },
+        {
+            "source": "{{ container_config_directory }}/wsgi-cloudkitty.conf",
+            "dest": "/etc/{{ cloudkitty_dir }}/wsgi-cloudkitty.conf",
+            "owner": "cloudkitty",
+            "perm": "0600"
+        },
         {
             "source": "{{ container_config_directory }}/policy.json",
             "dest": "/etc/cloudkitty/policy.json",

ansible/roles/cloudkitty/templates/cloudkitty.conf.j2

@@ -3,6 +3,11 @@ debug = {{ cloudkitty_logging_debug }}
 
 log_dir = /var/log/kolla/cloudkitty
 
+{% if service_name == 'cloudkitty-api' %}
+# Force cloudkitty-api.log or will use app.wsgi
+log_file = /var/log/kolla/cloudkitty/cloudkitty-api.log
+{% endif %}
+
 transport_url = rabbit://{% for host in groups['rabbitmq'] %}{{ rabbitmq_user }}:{{ rabbitmq_password }}@{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ rabbitmq_port }}{% if not loop.last %},{% endif %}{% endfor %}
 
 [database]

ansible/roles/cloudkitty/templates/wsgi-cloudkitty.conf.j2

@@ -0,0 +1,20 @@
+{% set python_path = '/usr/lib/python2.7/site-packages' if kolla_install_type == 'binary' else '/var/lib/kolla/venv/lib/python2.7/site-packages' %}
+Listen {{ api_interface_address }}:{{ cloudkitty_api_port }}
+
+TraceEnable off
+
+<VirtualHost *:{{ cloudkitty_api_port }}>
+
+  ErrorLog "/var/log/kolla/cloudkitty/cloudkitty-api-error.log"
+  LogFormat "%{X-Forwarded-For}i %l %u %t \"%r\" %>s %b %D \"%{Referer}i\" \"%{User-Agent}i\"" logformat
+  CustomLog "/var/log/kolla/cloudkitty/cloudkitty-api-access.log" logformat
+  WSGIApplicationGroup %{GLOBAL}
+  WSGIDaemonProcess cloudkitty group=cloudkitty processes={{ openstack_service_workers }} threads=1 user=cloudkitty python-path={{ python_path }}
+  WSGIProcessGroup cloudkitty
+  WSGIScriptAlias / "{{ python_path }}/cloudkitty/api/app.wsgi"
+
+  <Directory "{{ python_path }}/cloudkitty/api">
+        Require all granted
+  </Directory>
+
+</VirtualHost>

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

@@ -1,7 +1,7 @@
 <match kolla.var.log.kolla.*.*.log>
     @type rewrite_tag_filter
     capitalize_regex_backreference yes
-    rewriterule1 programname ^(cinder-api-access|gnocchi-api-access|horizon-access|keystone-apache-admin-access|keystone-apache-public-access|placement-api-access|panko-api-access)$ apache_access
+    rewriterule1 programname ^(cinder-api-access|cloudkitty-api-access|gnocchi-api-access|horizon-access|keystone-apache-admin-access|keystone-apache-public-access|placement-api-access|panko-api-access)$ apache_access
     rewriterule2 programname ^(aodh_wsgi_access | zun_api_wsgi_access)$ wsgi_access
     rewriterule3 programname ^(nova-api|nova-compute|nova-conductor|nova-consoleauth|nova-manage|nova-novncproxy|nova-scheduler|nova-placement-api|placement-api|privsep-helper)$ openstack_python
     rewriterule4 programname ^(sahara-api|sahara-engine)$ openstack_python