docker 容器开启ssh服务

使用docker启动centos7

docker run -itd --privileged=true --name=ssh -p 2022:22 centos:centos7 bash

进入容器安装openssh-server

docker exec -it ssh bash
yum install openssh-server

生成密钥

ssh-keygen -q -t rsa -b 2048 -f /etc/ssh/ssh_host_rsa_key -N ''
ssh-keygen -q -t ecdsa -f /etc/ssh/ssh_host_ecdsa_key -N ''
ssh-keygen -t dsa -f /etc/ssh/ssh_host_ed25519_key -N ''

修改 /etc/ssh/sshd_config 配置信息：

sed -i "s/#UsePrivilegeSeparation.*/UsePrivilegeSeparation no/g" /etc/ssh/sshd_config
sed -i "s/UsePAM.*/UsePAM no/g" /etc/ssh/sshd_config

启动sshd服务

/usr/sbin/sshd -D &

验证sshd服务

[root@0225722ae3f8 /]# lsof -i:22
COMMAND PID USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
sshd    101 root    3u  IPv4 946908      0t0  TCP *:ssh (LISTEN)
sshd    101 root    4u  IPv6 946910      0t0  TCP *:ssh (LISTEN)