Fix xdebug playbook

playbooks/xdebug.yml

@@ -74,6 +74,9 @@
           - php-xdebug
           - php{{php_version|default("7.0")}}-xdebug
       ignore_errors: yes
+    - name: Ensure PHP extension through PECL
+      shell: pecl install xdebug
+      ignore_errors: yes
     - name: Turn on/off xdebug
       lineinfile:
         dest: /etc/{{ php_base_dir|default('php5') }}/{{ php_conf_dir|default('conf.d') }}/xdebug.ini