tasks: galera_post_install: Configure the service before securing the DB

The DB secure tool attempts to start the DB but this may fail if the
systemd service is not configured properly. As such, we move the service
configuration tasks before those that secure the db.

Change-Id: I49f5cee0494b89d5018056fbed84f52a67aa7399

tasks/galera_post_install.yml

@@ -13,6 +13,35 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+- name: Create mariadb systemd service config dir
+  file:
+    path: "/etc/systemd/system/{{ galera_mariadb_service_name }}.service.d"
+    state: "directory"
+    group: "root"
+    owner: "root"
+    mode: "0755"
+
+- name: Apply systemd options
+  template:
+    src: "{{ item.src }}"
+    dest: "/etc/systemd/system/{{ galera_mariadb_service_name }}.service.d/{{ item.dest }}"
+    mode: "0644"
+  with_items:
+    - { src: "systemd.environment.conf.j2", dest: "environment.conf" }
+    - { src: "systemd.limits.conf.j2", dest: "limits.conf" }
+    - { src: "systemd.restart.conf.j2", dest: "restart.conf" }
+    - { src: "systemd.slice.conf.j2", dest: "slice.conf" }
+    - { src: "systemd.timeout.conf.j2", dest: "timeout.conf" }
+    - { src: "systemd.without-privatedevices.conf.j2", dest: "without-privatedevices.conf" }
+  notify:
+    - Manage LB
+    - Reload the systemd daemon
+    - Restart all mysql
+
+- name: Reload systemd service files
+  systemd:
+    daemon_reload: yes
+
 # NOTE(cloudnull): The secure task is not needed on Debian based systems
 #                  as all of these tasks will be run on Package install
 #                  and running them again will cause a conflict within
@@ -125,31 +154,6 @@
     dest: "/etc/default/mysql"
     state: "link"
 
-- name: Create mariadb systemd service config dir
-  file:
-    path: "/etc/systemd/system/{{ galera_mariadb_service_name }}.service.d"
-    state: "directory"
-    group: "root"
-    owner: "root"
-    mode: "0755"
-
-- name: Apply systemd options
-  template:
-    src: "{{ item.src }}"
-    dest: "/etc/systemd/system/{{ galera_mariadb_service_name }}.service.d/{{ item.dest }}"
-    mode: "0644"
-  with_items:
-    - { src: "systemd.environment.conf.j2", dest: "environment.conf" }
-    - { src: "systemd.limits.conf.j2", dest: "limits.conf" }
-    - { src: "systemd.restart.conf.j2", dest: "restart.conf" }
-    - { src: "systemd.slice.conf.j2", dest: "slice.conf" }
-    - { src: "systemd.timeout.conf.j2", dest: "timeout.conf" }
-    - { src: "systemd.without-privatedevices.conf.j2", dest: "without-privatedevices.conf" }
-  notify:
-    - Manage LB
-    - Reload the systemd daemon
-    - Restart all mysql
-
 - name: remove default mysql_safe_syslog
   file:
     path: "/etc/mysql/conf.d/mysqld_safe_syslog.cnf"