Add option to configure timezone

Timezone defaults to Europe/Berlin

defaults/main.yml

@@ -4,6 +4,7 @@ users:
 - { name: 'nouser', state: 'absent', public_key: '' }
 
 system_locale: en_US.UTF-8
+system_timezone: "Europe/Berlin"
 ssh_allow_password: no
 base_upgrade: yes
 

tasks/locale.yml

@@ -15,3 +15,7 @@
 - name: Configure locale to '{{ system_locale }}'
   command: localectl set-locale LANG={{ system_locale }}
   changed_when: locale_lang != system_locale
+
+- name: Configure Timezone
+  timezone:
+    name: "{{ system_timezone }}"