feat(systemd): Manage After dependencies

Allow nginx to be started after a list of systemd units (disabled by
default).

Signed-off-by: Julien Riou <[email protected]>

Author: jouir

CHANGELOG.md

@@ -11,6 +11,7 @@ FEATURES:
 - Add support for installing NGINX Open Source and NGINX Plus on Alpine Linux 3.21.
 - Add a parameter, `nginx_distribution_package`, to override the default NGINX package name when installing NGINX from your distribution/OS repository.
 - Add a parameter, `nginx_skip_os_install_config_check`, to turn off the NGINX config check handler when installing NGINX from the respective distribution package manager. This should help avoid potential issues where the default NGINX config that ships with a distribution is broken for some reason.
+- Add a parameter, `nginx_service_after`, to start the service after this list of systemd units.
 
 BUG FIXES:
 

defaults/main/systemd.yml

@@ -35,6 +35,12 @@ nginx_service_overridefilename: override.conf
 # Default is to comment this out
 # nginx_service_restartsec: 5s
 
+# Start the service after these units
+# [Unit]
+# After=
+# Default is to comment this out
+# nginx_service_after: []
+
 # Enable a custom systemd override file
 # ** This could break the service **
 # Setting this to true disables custom values above

templates/services/nginx.service.override.conf.j2

@@ -16,3 +16,8 @@ Restart={{ nginx_service_restart }}
 {% if nginx_service_restartsec is defined %}
 RestartSec={{ nginx_service_restartsec }}
 {% endif %}
+
+[Unit]
+{% if nginx_service_after %}
+After={{ nginx_service_after | join(" ") }}
+{% endif %}