Service on Alpine can't properly shutdown (with solutions)

[lawipac]

Netclient Version 1.6.0 ( also happens to 1.5.1 )
Alpine : 3.23

drive:~# rc-service netclient status
 * status: started
drive:~# rc-service netclient stop
 * Stopping netclient ...                                                                                                                                          [ ok ]
drive:~# rc-service netclient start
 * Starting netclient ...
 * supervise-daemon: /sbin/netclient is already running
 * failed to start netclient                                                                                                                                       [ !! ]
 * ERROR: netclient failed to start
drive:~# ps w | grep netclient
 2083 root      0:00 supervise-daemon netclient --start --stdout /var/log/netclient.log --stderr /var/log/netclient.log --pidfile /var/run/netclient.pid --respawn-delay 2 --respawn-max 3 --respawn-period 10 --user root /sbin/netclient -- daemon
 2617 root      0:00 /sbin/netclient daemon
 2852 root      0:00 grep netclient
drive:~#

The reason is the usage of supervisor="supervise-daemon"

drive:~# sed -n '1,200p' /etc/init.d/netclient
#!/sbin/openrc-run

description="netclient daemon"
pidfile="/var/run/netclient.pid"
RC_SVCNAME="netclient"
command="/sbin/netclient"
command_args="daemon"
command_user="root"
supervisor="supervise-daemon"
respawn_max=3
respawn_period=10
output_log="/var/log/netclient.log"
error_log="/var/log/netclient.log"
depend() {
        after firewall
}

drive:~#

By modifying default service settings from

command_args="daemon"
supervisor="supervise-daemon"

to

command_args="daemon"
command_background="yes"
# supervisor="supervise-daemon"

It can stop and restart the service properly and can support autorestart during accidents by

respawn_max=3
respawn_period=10

the complete final service /etc/init.d/netclient read as;

#!/sbin/openrc-run

description="netclient daemon"
pidfile="/var/run/netclient.pid"
RC_SVCNAME="netclient"
command="/sbin/netclient"
command_args="daemon"
command_user="root"
command_background="yes"
# supervisor="supervise-daemon"
respawn_max=3
respawn_period=10
output_log="/var/log/netclient.log"
error_log="/var/log/netclient.log"

depend() {
        after firewall
}