制作镜像

cat Dockerfile 
FROM ubuntu:22.04
USER root
RUN apt update -y
RUN apt-get -y install lxcfs
COPY start.sh /
CMD ["/start.sh"]

[zldlocal2] root@zldlocal2:~# cat start.sh 
#!/bin/bash
# Cleanup
nsenter -m/proc/1/ns/mnt fusermount -u /var/lib/lxcfs 2> /dev/null