diff --git a/meta/main.yml b/meta/main.yml
index 823859b..1e3a3fc 100644
--- a/meta/main.yml
+++ b/meta/main.yml
@@ -1,3 +1,4 @@
+# Standards: 0.1
 ---
 galaxy_info:
   author: xoxys
@@ -5,9 +6,9 @@ galaxy_info:
   license: MIT
   min_ansible_version: 2.4
   platforms:
-  - name: EL
-    versions:
-    - 7
+    - name: EL
+      versions:
+        - 7
   galaxy_tags:
     - univention
     - ucs
diff --git a/tasks/tls.yml b/tasks/tls.yml
index e1eeaa4..d37c5da 100644
--- a/tasks/tls.yml
+++ b/tasks/tls.yml
@@ -1,64 +1,64 @@
 ---
 - block:
-  - name: Create tls folder structure
-    file:
-      path: "{{ item }}"
-      state: directory
-      mode: 700
-    with_items:
-      - "{{ ucs_tls_certs_dir }}"
-      - "{{ ucs_tls_key_dir }}"
+    - name: Create tls folder structure
+      file:
+        path: "{{ item }}"
+        state: directory
+        mode: 700
+      with_items:
+        - "{{ ucs_tls_certs_dir }}"
+        - "{{ ucs_tls_key_dir }}"
 
-  - name: Copy certs and private key
-    copy:
-      src: "{{ item.src }}"
-      dest: "{{ item.dest }}"
-      mode: "{{item.mode }}"
-    with_items:
-      - { src: "{{ ucs_tls_cert_path }}", dest: "{{ ucs_tls_certs_dir }}/ucs.pem", mode: '0600' }
-      - { src: "{{ ucs_tls_key_path }}", dest: "{{ ucs_tls_key_dir }}/ucs.pem", mode: '0750' }
-    loop_control:
-      label: "{{ item.dest }}"
-    notify:
-      - __ucs_apache_restart
-      - __ucs_dovecot_restart
-      - __ucs_postfix_restart
+    - name: Copy certs and private key
+      copy:
+        src: "{{ item.src }}"
+        dest: "{{ item.dest }}"
+        mode: "{{item.mode }}"
+      with_items:
+        - { src: "{{ ucs_tls_cert_path }}", dest: "{{ ucs_tls_certs_dir }}/ucs.pem", mode: '0600' }
+        - { src: "{{ ucs_tls_key_path }}", dest: "{{ ucs_tls_key_dir }}/ucs.pem", mode: '0750' }
+      loop_control:
+        label: "{{ item.dest }}"
+      notify:
+        - __ucs_apache_restart
+        - __ucs_dovecot_restart
+        - __ucs_postfix_restart
 
-  - name: Set apache2 ucr vars
-    ucr:
-      path: "{{ item.path }}"
-      value: "{{ item.value }}"
-    with_items:
-      - { path: apache2/ssl/certificate, value: "{{ ucs_tls_certs_dir }}/ucs.pem" }
-      - { path: apache2/ssl/key, value: "{{ ucs_tls_key_dir }}/ucs.pem" }
-    loop_control:
-      label: "variable: {{ item.path }}={{ item.value }}"
-    notify: __ucs_apache_restart
-    when: ucs_custom_tls_apache2_enabled
+    - name: Set apache2 ucr vars
+      ucr:
+        path: "{{ item.path }}"
+        value: "{{ item.value }}"
+      with_items:
+        - { path: apache2/ssl/certificate, value: "{{ ucs_tls_certs_dir }}/ucs.pem" }
+        - { path: apache2/ssl/key, value: "{{ ucs_tls_key_dir }}/ucs.pem" }
+      loop_control:
+        label: "variable: {{ item.path }} = {{ item.value }}"
+      notify: __ucs_apache_restart
+      when: ucs_custom_tls_apache2_enabled
 
-  - name: Set dovecot ucr vars
-    ucr:
-      path: "{{ item.path }}"
-      value: "{{ item.value }}"
-    with_items:
-      - { path: mail/dovecot/ssl/certificate, value: "{{ ucs_tls_certs_dir }}/ucs.pem" }
-      - { path: mail/dovecot/ssl/key, value: "{{ ucs_tls_key_dir }}/ucs.pem" }
-    loop_control:
-      label: "variable: {{ item.path }}={{ item.value }}"
-    notify: __ucs_dovecot_restart
-    when: ucs_custom_tls_dovecot_enabled
+    - name: Set dovecot ucr vars
+      ucr:
+        path: "{{ item.path }}"
+        value: "{{ item.value }}"
+      with_items:
+        - { path: mail/dovecot/ssl/certificate, value: "{{ ucs_tls_certs_dir }}/ucs.pem" }
+        - { path: mail/dovecot/ssl/key, value: "{{ ucs_tls_key_dir }}/ucs.pem" }
+      loop_control:
+        label: "variable: {{ item.path }} = {{ item.value }}"
+      notify: __ucs_dovecot_restart
+      when: ucs_custom_tls_dovecot_enabled
 
-  - name: Set postfix ucr vars
-    ucr:
-      path: "{{ item.path }}"
-      value: "{{ item.value }}"
-    with_items:
-      - { path: mail/postfix/ssl/certificate, value: "{{ ucs_tls_certs_dir }}/ucs.pem" }
-      - { path: mail/postfix/ssl/key, value: "{{ ucs_tls_key_dir }}/ucs.pem" }
-    loop_control:
-      label: "variable: {{ item.path }}={{ item.value }}"
-    notify: __ucs_postfix_restart
-    when: ucs_custom_tls_postfix_enabled
+    - name: Set postfix ucr vars
+      ucr:
+        path: "{{ item.path }}"
+        value: "{{ item.value }}"
+      with_items:
+        - { path: mail/postfix/ssl/certificate, value: "{{ ucs_tls_certs_dir }}/ucs.pem" }
+        - { path: mail/postfix/ssl/key, value: "{{ ucs_tls_key_dir }}/ucs.pem" }
+      loop_control:
+        label: "variable: {{ item.path }} = {{ item.value }}"
+      notify: __ucs_postfix_restart
+      when: ucs_custom_tls_postfix_enabled
   become: True
   become_user: root
   when: ucs_custom_tls_enabled