Nfs-server disconnected after adding d container

 docker run -itd --restart always --network host --name cube_test -h cube_test -v /home/docker_home/cube_test/:/home/host_home --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro cube_test init
[화  4월 12 17:22:22 2022] systemd[1]: systemd 219 running in system mode. (+PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 -SECCOMP +BLKID +ELFUTILS +KMOD +IDN)
[화  4월 12 17:22:22 2022] systemd[1]: Detected architecture x86-64.
[화  4월 12 17:22:22 2022] systemd[1]: Set hostname to <cube_test>.
[화  4월 12 17:22:23 2022] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[화  4월 12 17:22:23 2022] systemd[1]: Created slice Root Slice.
[화  4월 12 17:22:23 2022] systemd[1]: Listening on Delayed Shutdown Socket.
[화  4월 12 17:22:23 2022] systemd[1]: Reached target Local Encrypted Volumes.
[화  4월 12 17:22:23 2022] systemd[1]: Listening on udev Control Socket.
[화  4월 12 17:22:23 2022] systemd[1]: Created slice System Slice.
[화  4월 12 17:22:23 2022] systemd[1]: Created slice system-getty.slice.
[화  4월 12 17:22:23 2022] systemd[1]: Reached target Remote File Systems.
[화  4월 12 17:22:23 2022] systemd[1]: Reached target Swap.
[화  4월 12 17:22:23 2022] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[화  4월 12 17:22:23 2022] systemd[1]: Starting Collect Read-Ahead Data...
[화  4월 12 17:22:23 2022] systemd[1]: Listening on Journal Socket.
[화  4월 12 17:22:23 2022] systemd[1]: Mounting Debug File System...
[화  4월 12 17:22:23 2022] systemd[1]: Mounting Huge Pages File System...
[화  4월 12 17:22:23 2022] systemd[1]: Created slice User and Session Slice.
[화  4월 12 17:22:23 2022] systemd[1]: Reached target Slices.
[화  4월 12 17:22:23 2022] systemd[1]: Listening on udev Kernel Socket.
[화  4월 12 17:22:23 2022] systemd[1]: Starting Journal Service...
[화  4월 12 17:22:23 2022] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[화  4월 12 17:22:23 2022] systemd[1]: Reached target Paths.
[화  4월 12 17:22:23 2022] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[화  4월 12 17:22:23 2022] systemd[1]: Mounted Debug File System.
[화  4월 12 17:22:23 2022] systemd[1]: Mounted Huge Pages File System.
[화  4월 12 17:22:23 2022] systemd[1]: Started Collect Read-Ahead Data.
[화  4월 12 17:22:23 2022] systemd[1]: Starting Create Static Device Nodes in /dev...
[화  4월 12 17:22:23 2022] systemd[1]: Mounting Configuration File System...
[화  4월 12 17:22:23 2022] systemd[1]: Starting Apply Kernel Variables...
[화  4월 12 17:22:23 2022] systemd[1]: Starting Setup Virtual Console...
[화  4월 12 17:22:23 2022] systemd[1]: Starting udev Coldplug all Devices...
[화  4월 12 17:22:23 2022] systemd[1]: Starting Load/Save Random Seed...
[화  4월 12 17:22:23 2022] systemd[1]: Mounted Configuration File System.
[화  4월 12 17:22:23 2022] systemd[1]: Started Load/Save Random Seed.
[화  4월 12 17:22:23 2022] systemd[1]: Started udev Coldplug all Devices.
[화  4월 12 17:22:23 2022] systemd[1]: Started Apply Kernel Variables.
[화  4월 12 17:22:24 2022] systemd[1]: Started Create Static Device Nodes in /dev.
[화  4월 12 17:22:24 2022] systemd[1]: Started Setup Virtual Console.
[화  4월 12 17:22:24 2022] systemd[1]: Started Journal Service.
[화  4월 12 17:22:24 2022] nfsd: last server has exited, flushing export cache

What is the reason?

Regards