Use systemd-journald instead of log files

This patch aims to migrate service from usage of regular syslog files
to journald. We also disable uwsgi logging, since it dublicates
requests that are logged by service itself.

Change-Id: I4cd3270ef873b6f595b151014e82c8b4b35f12aa

defaults/main.yml

@@ -83,7 +83,6 @@ cloudkitty_keystone_auth_plugin: password
 cloudkitty_output_backend: cloudkitty.backend.file.FileBackend
 cloudkitty_output_pipeline: osrf
 cloudkitty_output_basepath: /var/cloudkitty/reports
-cloudkitty_log_dir: /var/log/cloudkitty
 
 cloudkitty_db_setup_host: "{{ ('galera_all' in groups) | ternary(groups['galera_all'][0], 'localhost') }}"
 cloudkitty_galera_address: "{{ galera_address | default('127.0.0.1') }}"

extras/os-cloudkitty-install.yml

@@ -26,18 +26,5 @@
       static: no
       when: not is_metal
 
-    - include: common-tasks/os-log-dir-setup.yml
-      vars:
-        log_dirs:
-          - src: "/openstack/log/{{ inventory_hostname }}-cloudkitty"
-            dest: "/var/log/cloudkitty"
-
   roles:
     - role: "os_cloudkitty"
-
-  post_tasks:
-    - include_tasks: "common-tasks/rsyslog-client.yml"
-      vars:
-        rsyslog_client_log_rotate_file: cloudkitty_log_rotate
-        rsyslog_client_log_dir: "/var/log/cloudkitty"
-        rsyslog_client_config_name: "99-cloudkitty-rsyslog-client.conf"

templates/cloudkitty-uwsgi.ini.j2

@@ -6,7 +6,7 @@ gid = {{ cloudkitty_system_group_name }}
 virtualenv = /openstack/venvs/cloudkitty-{{ cloudkitty_venv_tag }}
 wsgi-file = {{ cloudkitty_bin }}/cloudkitty-wsgi.py
 http = :{{ cloudkitty_service_port }}
-logto = {{ cloudkitty_log_dir }}/cloudkitty-api.log
+disable-logging = true
 
 master = true
 enable-threads = true

templates/cloudkitty.conf.j2

@@ -5,6 +5,7 @@
 use_stderr = False
 debug = {{ debug }}
 notification_topics = {{ cloudkitty_notification_topics }}
+use_journal = True
 
 ## Oslo Messaging RPC
 transport_url = {{ cloudkitty_oslomsg_rpc_transport }}://{% for host in cloudkitty_oslomsg_rpc_servers.split(',') %}{{ cloudkitty_oslomsg_rpc_userid }}:{{ cloudkitty_oslomsg_rpc_password }}@{{ host }}:{{ cloudkitty_oslomsg_rpc_port }}{% if not loop.last %},{% else %}/{{ cloudkitty_oslomsg_rpc_vhost }}{% if (cloudkitty_oslomsg_rpc_use_ssl | lower) | bool %}?ssl=1{% else %}?ssl=0{% endif %}{% endif %}{% endfor %}