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: If1eda4d803661a0b924941aecd1867302391a5f4

defaults/main.yml

@@ -72,7 +72,6 @@ nova_system_shell: /bin/bash
 nova_system_comment: nova system user
 nova_system_home_folder: "/var/lib/{{ nova_system_user_name }}"
 nova_libvirt_save_path: "{{ nova_system_home_folder }}/save"
-nova_log_dir: "/var/log/nova"
 
 nova_lock_path: "/var/lock/nova"
 
@@ -529,6 +528,7 @@ nova_pip_packages:
   - python-memcached
   - python-novaclient
   - python-openstackclient
+  - systemd-python
   - uWSGI
 
 # Specific pip packages provided by the user

tasks/nova_pre_install.yml

@@ -124,34 +124,6 @@
   tags:
     - nova-dirs
 
-- name: Test for log directory or link
-  shell: |
-    if [ -h "{{ nova_log_dir }}"  ]; then
-      chown -h {{ nova_system_user_name }}:{{ nova_system_group_name }} "{{ nova_log_dir }}"
-      chown -R {{ nova_system_user_name }}:{{ nova_system_group_name }} "$(readlink {{ nova_log_dir }})"
-    else
-      exit 1
-    fi
-  register: log_dir
-  failed_when: false
-  changed_when: log_dir.rc != 0
-  tags:
-    - nova-dirs
-    - nova-logs
-
-- name: Create nova log dir
-  file:
-    path: "{{ nova_log_dir }}"
-    state: directory
-    owner: "{{ nova_system_user_name }}"
-    group: "{{ nova_system_group_name }}"
-    mode: "0755"
-  when:
-    - log_dir.rc != 0
-  tags:
-    - nova-dirs
-    - nova-logs
-
 - name: Drop sudoers file
   template:
     src: "sudoers.j2"

templates/nova-uwsgi.ini.j2

@@ -22,7 +22,7 @@ lazy-apps = true
 add-header = Connection: close
 buffer-size = {{ nova_wsgi_buffer_size }}
 thunder-lock = true
-logfile-chmod = 644
+disable-logging = true
 pidfile = /var/run/{{ item.service_name }}/{{ item.service_name }}.pid
 
 # Avoid filling up the logs with health check requests from haproxy.

templates/nova.conf.j2

@@ -6,7 +6,7 @@ use_stderr = False
 # Logs / State
 debug = {{ debug }}
 fatal_deprecations = {{ nova_fatal_deprecations }}
-log_dir = {{ nova_log_dir }}
+use_journal = True
 state_path = {{ nova_system_home_folder }}
 rootwrap_config = /etc/nova/rootwrap.conf
 service_down_time = 120

vars/debian.yml

@@ -24,17 +24,19 @@ nova_distro_packages:
   - genisoimage
   - git
   - iptables
-  - python-openstackclient
   - libpython2.7
+  - python-openstackclient
 
 nova_devel_distro_packages:
   - libpq-dev
+  - libsystemd-dev
   - libxml2-dev
   - python-httplib2
 
 nova_service_distro_packages:
   - python3-nova
   - python3-memcache
+  - python3-systemd
 
 nova_service_extra_distro_packages:
   kvm:

vars/redhat-7.yml

@@ -28,6 +28,7 @@ nova_distro_packages:
 nova_devel_distro_packages:
   - libxml2-devel
   - postgresql-devel
+  - systemd-devel
   - which
 
 nova_service_distro_packages:
@@ -38,6 +39,7 @@ nova_service_distro_packages:
   - python-memcached
   - python-novaclient
   - python2-PyMySQL
+  - systemd-python
 
 nova_service_extra_distro_packages:
   kvm:

vars/suse.yml

@@ -30,6 +30,7 @@ nova_devel_distro_packages:
   - libxml2-devel
   - postgresql-devel
   - python-httplib2
+  - systemd-devel
 
 nova_service_distro_packages:
   - openstack-nova-api
@@ -38,6 +39,7 @@ nova_service_distro_packages:
   - python-memcached
   - python-novaclient
   - python-PyMySQL
+  - python-systemd
 
 nova_service_extra_distro_packages:
   kvm: