Add "Positioning and use of the become directive"

Signed-off-by: Christian Berendt <[email protected]>

source/development/ansible-style-guide.rst

@@ -2,4 +2,29 @@
 Ansible Style Guide
 ===================
 
-We implement all the default rules of Ansible Lint. A listing of all these rules can be found in the Ansible Lint documentation: https://ansible-lint.readthedocs.io/en/latest/default_rules/
+We implement all the default rules of Ansible Lint. A listing of all these rules
+can be found in the Ansible Lint documentation: https://ansible-lint.readthedocs.io/en/latest/default_rules/
+
+Positioning and use of the become directive
+===========================================
+
+The become directive is only set when needed and is always set explicitly
+for each task that needs it.
+
+Blocks, roles, or playbooks are never executed in a privileged mode.
+
+We always insert the become directive between the name of a task
+and the task itself. This also applies to related directives like become_user
+or become_flags. This is for better visibility if a task is privileged or not.
+
+.. code-block:: yaml
+
+   - name: Copy hddtemp configuration file
+     become: true
+     ansible.builtin.copy:
+       src: "{{ ansible_os_family }}/hddtemp"
+       dest: "{{ hddtemp_conf_file }}"
+       owner: root
+       group: root
+       mode: 0644
+     notify: Restart hddtemp service