caddy-frontend: Note implementation details regarding rotation

software/caddy-frontend/buildout.hash.cfg

@@ -22,7 +22,7 @@ md5sum = c801b7f9f11f0965677c22e6bbe9281b
 
 [template-apache-frontend]
 filename = instance-apache-frontend.cfg.in
-md5sum = a9d6b931fc9b5fd402b55c0219e6f02d
+md5sum = ab5312fb5454d5358b22b000cf6ed124
 
 [template-apache-replicate]
 filename = instance-apache-replicate.cfg.in

software/caddy-frontend/instance-apache-frontend.cfg.in

@@ -437,6 +437,11 @@ rendered = ${directory:bbb-ssl-dir}/frontend.crt
 name = caddy
 log = ${caddy-configuration:error-log} ${caddy-configuration:access-log}
 rotate-num = 30
+# Note: Slaves do not define their own reload, as this would be repeated,
+#       because sharedscripts work per entry, and each slave needs its own
+#       olddir
+#       Here we trust that there will be something to be rotated with error
+#       or access log, and that this will trigger postrotate script.
 post = ${frontend-caddy-lazy-graceful:rendered} &
 
 [logrotate-entry-nginx]