crun detach mode process do not exit when using systemd #1827
Description
my app cont-ctrl will call “crun run --detach helloworld” command
everything is OK when I exec “cont-ctrl start helloworld -d”.
root@c1rdb02:~# cont-ctrl start helloworld -d
[123.516616200][EB-KPI][CONT] STARTING helloworld
[123.516870400][EB-KPI][CONT] VERIFYSIG helloworld
[123.518854600][EB-KPI][CONT] VERITYSETUP helloworld
[123.537028400][EB-KPI][CONT] MOUNT_START helloworld
[123.545635600][EB-KPI][CONT] MOUNTED_CONTENT helloworld
[123.546654600][EB-KPI][CONT] STARTRUNC helloworld
root@c1rdb02:~# Yep! I am helloworld_startup.sh!
!!!Hello World!!!
root@c1rdb02:~# ps auxf |grep helloworld
root 465 0.0 0.0 2828 740 ttyLF0 S+ 17:27 0:00 \_ grep helloworld
root 455 0.7 0.0 2084 1352 ? Ss 17:27 0:00 /bin/sh /usr/bin/helloworld_startup.sh
root 456 1.5 0.0 5204 1736 ? S 17:27 0:00 \_ helloworld
But two processess named 'crun run --detach helloworld' will exist when using systemd:
c1rdb02 login: root
root@c1rdb02:~# ps auxf |grep helloworld
root 226 0.0 0.0 4200 1148 ? Ss 17:25 0:00 crun run --detach helloworld
root 236 0.0 0.0 4300 2220 ? S 17:25 0:00 crun run --detach helloworld
root 237 0.0 0.0 2084 1356 ? Ss 17:25 0:00 \_ /bin/sh /usr/bin/helloworld_startup.sh
root 241 0.1 0.0 5204 1736 ? S 17:25 0:00 \_ helloworld
root 354 0.0 0.0 2828 684 ttyLF0 S+ 17:26 0:00 \_ grep helloworld
root@c1rdb02:~# cat /lib/systemd/system/helloworld.service
[Unit]
Description=Hello World Container Service
[Service]
Type=simple
Environment="XDG_RUNTIME_DIR=/run/user/0"
ExecStartPre=/bin/mkdir -p /run/user/0
ExecStart=/sbin/cont-ctrl start %p -d
ExecStopPost=/sbin/cont-ctrl stop %p -d
NotifyAccess=all
TimeoutStopSec=30
[Install]
WantedBy=multi-user.target
I don't know why exec the same command 'cont-ctrl start helloworld -d' will show two deferephenomenons