Update listmonk-simple.service - add optional log file (#1640)

#1614 (comment)

Author: MaximilianKohler

listmonk-simple.service

@@ -24,13 +24,14 @@ RestartSec=5
 # to the end of the ExecStart line above after creating the dir and fetching the files with:
 # mkdir -p /etc/listmonk/static ; wget -O - https://github.com/knadh/listmonk/archive/master.tar.gz | tar xz -C /etc/listmonk/static --strip=2 "listmonk-master/static"
 
-# Set user to run listmonk service as (instead of root), and folders it can write to.
+# To enable a log file that persists after restarts, replace the ExecStart= line with:
+# ExecStart=/bin/bash -ce "exec /usr/bin/listmonk --config /etc/listmonk/config.toml --static-dir /etc/listmonk/static >>/etc/listmonk/listmonk.log 2>&1"
+
+# Set user to run listmonk service as (instead of root).
 # Can use "DynamicUser=" instead, if your systemd version is >= 232.
 # https://www.freedesktop.org/software/systemd/man/latest/systemd.exec.html#DynamicUser=
 #User=
 #StateDirectory=/etc/listmonk
-#LogsDirectory=/etc/listmonk
-#CacheDirectory=/etc/listmonk/cache
 #Environment=HOME=/usr/bin
 
 # Use systemd’s ability to disable security-sensitive features