Add systemd journal logging to the service config

The systemd journal would normally be populated with the standard out of
a service however with the use of uwsgi this is not actually happening
resulting in us only capturing the logs from the uwsgi process instead
of the service itself. This change implements journal logging in the
service config, which is part of OSLO logging.

OSLO logging docs found here: <https://docs.openstack.org/oslo.log/3.28.1/journal.html>

Change-Id: I5ae4ee8b0f69a4ed9b6088f043abaa1c4b1291d8
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>

defaults/main.yml

@@ -137,6 +137,7 @@ ceilometer_pip_packages:
   - pymongo
   - python-ceilometerclient
   - python-memcached
+  - systemd-python
   - tooz
   - warlock
 

releasenotes/notes/journal-log-xcba504642b49619.yaml

@@ -0,0 +1,6 @@
+---
+deprecations:
+  - The log path, ``/var/log/ceilometer`` is no longer used to capture service
+    logs. All logging for the ceilometer service will now be sent directly to the
+    systemd journal.
+

tasks/ceilometer_pre_install.yml

@@ -54,26 +54,3 @@
     - { path: "{{ ceilometer_system_user_home }}" }
     - { path: "{{ ceilometer_system_user_home }}/.ssh", mode: "0700" }
     - { path: "/var/cache/ceilometer", mode: "0700" }
-
-- name: Test for log directory or link
-  shell: |
-    if [ -h "/var/log/ceilometer"  ]; then
-      chown -h {{ ceilometer_system_user_name }}:{{ ceilometer_system_group_name }} "/var/log/ceilometer"
-      chown -R {{ ceilometer_system_user_name }}:{{ ceilometer_system_group_name }} "$(readlink /var/log/ceilometer)"
-    else
-      exit 1
-    fi
-  register: log_dir
-  failed_when: false
-  changed_when: log_dir.rc != 0
-
-- name: Create ceilometer log dir
-  file:
-    path: "{{ item.path }}"
-    state: directory
-    owner: "{{ item.owner|default(ceilometer_system_user_name) }}"
-    group: "{{ item.group|default(ceilometer_system_group_name) }}"
-    mode: "{{ item.mode|default('0755') }}"
-  with_items:
-    - { path: "/var/log/ceilometer" }
-  when: log_dir.rc != 0

templates/ceilometer.conf.j2

@@ -1,6 +1,7 @@
 #{{ ansible_managed}}
 
 [DEFAULT]
+use_journal = True
 # Disable stderr logging
 use_stderr = False
 debug = {{ debug }}

vars/redhat-7.yml

@@ -20,6 +20,7 @@ ceilometer_distro_packages:
   - rsync
 
 ceilometer_devel_distro_packages:
+  - systemd-devel
   - which
 
 ceilometer_service_distro_packages:
@@ -28,6 +29,7 @@ ceilometer_service_distro_packages:
   - openstack-ceilometer-ipmi
   - openstack-ceilometer-notification
   - openstack-ceilometer-polling
+  - systemd-python
 
 # Packages required in developer mode, where packages are built locally
 ceilometer_developer_mode_distro_packages:

vars/suse-42.yml

@@ -21,6 +21,8 @@ ceilometer_distro_packages:
   - rsync
 
 ceilometer_devel_distro_packages:
+  - pkg-config
+  - systemd-devel
   - which
 
 ceilometer_service_distro_packages:
@@ -30,6 +32,7 @@ ceilometer_service_distro_packages:
   - openstack-ceilometer-agent-ipmi
   - openstack-ceilometer-agent-notification
   - openstack-ceilometer-polling
+  - python-systemd
 
 # Packages required in developer mode, where packages are built locally
 ceilometer_developer_mode_distro_packages:

vars/ubuntu.yml

@@ -29,10 +29,12 @@ ceilometer_service_distro_packages:
   - ceilometer-agent-central
   - ceilometer-agent-compute
   - ceilometer-polling
+  - python-systemd
+  - python3-systemd
 
 # Packages required in developer mode, where packages are built locally
 ceilometer_developer_mode_distro_packages:
   - libvirt-dev
-  - pkg-config
   - libxml2-dev
   - libxslt1-dev
+  - pkg-config