Unified config and variable use

Signed-off-by: Jim Martens <github@2martens.de>

collabora_vars.yml.example

@@ -1,5 +1,3 @@
 ---
-admin_mail: admin@example.com
-ssh_user: ssh_login
 nextcloud_domain: nextcloud.com
 collabora_domain: office.nextcloud.com

roles/drone/meta/main.yml

@@ -1,6 +1,5 @@
 ---
 dependencies:
-  - role: common
+  - role: docker
   - role: apache
   - role: letsencrypt
-  - role: docker

roles/drone/tasks/apache.yml

@@ -1,7 +1,7 @@
 ---
 - name: add drone http site
   template:
-    src: etc/apache2/sites-available/ci_domain.conf.j2
+    src: etc/apache2/sites-available/ansible_domain.conf.j2
     dest: /etc/apache2/sites-available/{{ ci_domain}}.conf
     owner: root
     group: root
@@ -26,7 +26,7 @@
   when: ansible_domain == 'dev'
 - name: add drone https site
   template:
-    src: etc/apache2/sites-available/ci_domain-le-ssl.conf.j2
+    src: etc/apache2/sites-available/ansible_domain-le-ssl.conf.j2
     dest: /etc/apache2/sites-available/{{ ci_domain }}-le-ssl.conf
     owner: root
     group: root