server/nextcloud: Fixed changing configuration of nextcloud instance

- Fixes configuring APCu cache

roles/server/nextcloud/tasks/main.yml

@@ -71,34 +71,31 @@
 - name: Configure Nextcloud default domain
   become_user: "{{ system_user }}"
   lineinfile:
-    backrefs: yes
     path: "{{ nextcloud_config }}"
     firstmatch: yes
     insertafter: "array \\("
     regexp: "^(\\s*)0 => '([^.]\\.)+[^.]*',$"
-    line: "\\g<1>0 => '{{ domain }}',"
+    line: "    0 => '{{ domain }}',"
     validate: /usr/bin/php %s
 
 - name: Configure Nextcloud default domain for cli
   become_user: "{{ system_user }}"
   lineinfile:
-    backrefs: yes
     path: "{{ nextcloud_config }}"
     firstmatch: yes
     insertafter: "'version'"
     regexp: "^(\\s*)'overwrite.cli.url' => '.*',$"
-    line: "\\1'overwrite.cli.url' => 'https://{{ domain }}',"
+    line: "  'overwrite.cli.url' => 'https://{{ domain }}',"
     validate: /usr/bin/php %s
 
 - name: Configure Nextcloud APCu cache
   become_user: "{{ system_user }}"
   lineinfile:
-    backrefs: yes
     path: "{{ nextcloud_config }}"
     firstmatch: yes
-    insertafter: "'overwrite\\.cli\\.url'"
+    insertafter: "^(\\s*)'overwrite\\.cli\\.url' => '.*',$"
     regexp: "^(\\s*)'memcache.local' => '.*',$"
-    line: "\\1'memcache.local' => '\\\\OC\\\\Memcache\\\\APCu',"
+    line: "  'memcache.local' => '\\\\OC\\\\Memcache\\\\APCu',"
     validate: /usr/bin/php %s
 
 - name: Install Nextcloud apps