zoneminder: Add support for remote dabase server

roles/zoneminder/defaults/main.yml

@@ -0,0 +1,4 @@
+---
+zm_mysql_host: localhost
+zm_mysql_db: zmuser
+zm_mysql_user: zmuser

roles/zoneminder/meta/main.yml

@@ -1,5 +1,4 @@
 ---
 dependencies:
   - {role: apache}
-  - {role: mariadb}
   - {role: rpmfusion-free-repo}

roles/zoneminder/tasks/main.yml

@@ -41,6 +41,16 @@
     group: apache
   notify: restart zoneminder
 
+- name: remove mariadb depency from unit file
+  shell:
+    cmd: >-
+      sed -e 's/mariadb\.service//' /lib/systemd/system/zoneminder.service
+      > /etc/systemd/system/zoneminder.service
+    creates: /etc/systemd/system/zoneminder.service
+    warn: false
+  notify: restart zoneminder
+  when: zm_mysql_host != "localhost"
+
 # selinux doesn't allow create this
 - name: create stub web log
   file:

roles/zoneminder/templates/zm.conf

@@ -2,7 +2,7 @@
 
 ZM_DIR_EVENTS=/srv/zoneminder
 
-ZM_DB_HOST=localhost
-ZM_DB_NAME=zm
-ZM_DB_USER=zmuser
-ZM_DB_PASS={{ zm_mysql_zmuser_pass }}
+ZM_DB_HOST={{ zm_mysql_host }}
+ZM_DB_NAME={{ zm_mysql_db}}
+ZM_DB_USER={{ zm_mysql_user }}
+ZM_DB_PASS={{ zm_mysql_pass }}