Utilize comment filter for ansible_managed annotations

[growi]

What

Changes all template files that include the {{ ansible_managed }} annotation to include {{ ansible_managed | comment }} or, in case of XML templates , {{ ansible_managed | comment('xml') }} instead.
Documentation: Ansible: manipulating-text

Why

The {{ ansible_managed }} vairable is configurable via the ansible.cfg file and can be a multiline string in which case the form # {{ ansible_managed }} used in keycloak.conf.j2, keycloak.service.j2 and keycloak-sysconfig.j2 breaks the file. XML templates that use <!-- {{ ansible_managed }} --> are ok and I only changed them for consistency.

Example

ansible.cfg

ansible_managed = WARNING: This file is managed by ANSIBLE.
  template: {file}
  modified on: %Y-%m-%d %H:%M:%S
  by user: {uid}

# {{ ansible_managed }} renders an invalid unit file:

# WARNING: This file is managed by ANSIBLE.
 template: roles/keycloak/templates/keycloak.service.j2
 modified on: 2024-03-13 00:39:13
 by user: root
[Unit]
Description=Keycloak Server
After=network.target
...

The Service can still be started but no longer enabled. Verify with systemd-analyze
# systemd-analyze verify /etc/systemd/system/keycloak.service

/etc/systemd/system/keycloak.service:2: Assignment outside of section. Ignoring.
/etc/systemd/system/keycloak.service:3: Assignment outside of section. Ignoring.
/etc/systemd/system/keycloak.service:4: Assignment outside of section. Ignoring.

{{ ansible_managed | comment }} renders a valid unit file:

#
# WARNING: This file is managed by ANSIBLE.
# template: roles/keycloak/templates/keycloak.service.j2
# modified on: 2024-03-13 00:39:25
# by user: root
#
[Unit]
Description=Keycloak Server
After=network.target
...

Side Effects

None

[guidograzioli]

PR looks good to me, thanks for the contribution!