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: I0f9eeeb5db890ba2119f7e8a5e85b9f6923092d6

defaults/main.yml

@@ -181,6 +181,7 @@ sahara_pip_packages:
   - python-saharaclient
   - python-keystoneclient
   - sahara
+  - systemd-python
   - warlock
   - uwsgi
 

tasks/sahara_pre_install.yml

@@ -42,27 +42,6 @@
     - { path: "/var/cache/sahara" }
     - { path: "{{ sahara_system_user_home }}" }
 
-- name: Test for log directory or link
-  shell: |
-    if [ -h "/var/log/sahara"  ]; then
-      chown -h {{ sahara_system_user_name }}:{{ sahara_system_group_name }} "/var/log/sahara"
-      chown -R {{ sahara_system_user_name }}:{{ sahara_system_group_name }} "$(readlink /var/log/sahara)"
-    else
-      exit 1
-    fi
-  register: log_dir
-  failed_when: false
-  changed_when: log_dir.rc != 0
-
-- name: Create sahara log dir
-  file:
-    path: "/var/log/sahara"
-    state: directory
-    owner: "{{ sahara_system_user_name }}"
-    group: "{{ sahara_system_group_name }}"
-    mode: "0755"
-  when: log_dir.rc != 0
-
 - name: Drop sudoers file
   template:
     src: "sudoers.j2"

templates/sahara-uwsgi.ini.j2

@@ -16,7 +16,7 @@ lazy-apps = true
 add-header = Connection: close
 buffer-size = {{ sahara_wsgi_buffer_size }}
 thunder-lock = true
-logfile-chmod = 644
+disable-logging = true
 
 # Avoid filling up the logs with health check requests from haproxy.
 route-user-agent = ^osa-haproxy-healthcheck$ donotlog:

templates/sahara.conf.j2

@@ -5,7 +5,7 @@
 use_stderr = False
 
 debug = {{ debug }}
-log_file = /var/log/sahara/sahara.log
+use_journal = True
 fatal_deprecations = {{ sahara_fatal_deprecations }}
 host = {{ sahara_api_bind_address }}
 port = {{ sahara_api_service_port }}

vars/debian.yml

@@ -18,4 +18,5 @@ cache_timeout: 600
 # Common apt packages
 sahara_distro_packages:
   - git
+  - libsystemd-dev
   - libxml2-dev

vars/redhat-7.yml

@@ -13,7 +13,8 @@
 sahara_distro_packages:
   - cronie
   - cronie-anacron
-  - rpcbind
   - git
-  - which
   - libxml2-devel
+  - rpcbind
+  - systemd-devel
+  - which

vars/suse.yml

@@ -13,6 +13,7 @@
 sahara_distro_packages:
   - cronie
   - cronie-anacron
-  - rpcbind
   - git-core
+  - rpcbind
+  - systemd-devel
   - which