# Installation docker
yum install -y docker
# Start docker
systemctl start docker
# Join boot
systemctl enable docker
# View status
systemctl status docker
# View docker version
docker --version
# Pull the mirror CentOS7.5
docker pull centos:7.5.1804
# View Mirror
docker image ls
# Guardian-type container operation
docker container run -itd --name="centos7.5"
# View the running state of the container
# Into the guard-running vessel
docker container exec -it /bin/bash
# Use local ftp source of yum
vim /etc/yum.repo/ftp.repo
# Install SSH
yum install -y openssh
# start up
systemctl start ssh
An error
After Baidu
Solution
If we use systemctl management services necessary to add parameters to increase --privileged right, and can not use the default bash, replaced by init, the following command
ocker run -d -it --privileged nginx-1 /usr/sbin/init
docker ps -a
docker exec -it 3623 /bin/bash
systemctl start sshd
systemctl status sshd