add -K to ansible-playbook command

we need to enter the server user's password due to the 'become' ansible directive

Author: Xronophobe

chapter_11_ansible.asciidoc

@@ -358,11 +358,12 @@ https://docs.ansible.com/ansible/latest/collections/ansible/builtin/apt_module.h
 
 [subs="specialcharacters,quotes"]
 ----
-$ *ansible-playbook --user=elspeth -i staging.ottg.co.uk, infra/ansible-provision.yaml -vv*
+$ *ansible-playbook --user=elspeth -i staging.ottg.co.uk, infra/ansible-provision.yaml -K -vv*
 ansible-playbook [core 2.16.3]
   config file = None
   [...]
 No config file found; using defaults
+BECOME password:
 Skipping callback 'default', as we already have a stdout callback.
 Skipping callback 'minimal', as we already have a stdout callback.
 Skipping callback 'oneline', as we already have a stdout callback.
@@ -405,6 +406,9 @@ skipped=0    rescued=0    ignored=0
 //         group, this requires a password for `sudo` on the server. I would add
 // a TIP or something similar to inform the reader it can be done with the `-K` flag:
 // ansible-playbook --user=elspeth -i staging.ottg.co.uk, infra/ansible-provision.yaml -K -vv
+//
+// Even with the server's user added to `docker`, if there is a task where
+// `become: true` is set, we need to provide the password with the `-K`
 
 I don't know about you, but whenever I make a terminal spew out a stream
 of output, I like to make little _brrp brrp brrp_ noises, a bit like the
@@ -552,7 +556,7 @@ In Ansible config, it looks like this:
 
 [subs="specialcharacters,quotes"]
 ----
-$ *ansible-playbook --user=elspeth -i staging.ottg.co.uk, infra/ansible-provision.yaml -vv*
+$ *ansible-playbook --user=elspeth -i staging.ottg.co.uk, infra/ansible-provision.yaml -K -vv*
 [...]
 
 PLAYBOOK: ansible-provision.yaml **********************************************