基于centos7镜像创建可以ssh链接的Docker容器
-
写dockerfile
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[root@web01 sshddockerfile]
# cat Dockerfile
FROM centos
MAINTAINER liuhaixiao
RUN yum -y
install
wget
RUN
rm
-rf
/etc/yum
.repos.d/*
RUN wget -O
/etc/yum
.repos.d
/CentOS-Base
.repo http:
//mirrors
.aliyun.com
/repo/Centos-7
.repo
RUN yum clean all
RUN yum
install
-y openssh-server
sudo
RUN
sed
-i
's/UsePAM yes/UsePAM no/g'
/etc/ssh/sshd_config
RUN
useradd
admin
RUN
echo
"admin:admin"
| chpasswd
RUN
echo
"admin ALL=(ALL) ALL"
>>
/etc/sudoers
RUN
ssh
-keygen -t dsa -f
/etc/ssh/ssh_host_dsa_key
RUN
ssh
-keygen -t rsa -f
/etc/ssh/ssh_host_rsa_key
# 启动sshd服务并且暴露22端口
RUN
mkdir
/var/run/sshd
EXPOSE 22
CMD [
"/usr/sbin/sshd"
,
"-D"
]
[root@web01 sshddockerfile]
#
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2.创建镜像
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docker build -t sshddocker ./
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3.查看镜像
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[root@web01 sshddockerfile]
# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
sshddocker latest 73204ab652dd 12 minutes ago 323.2 MB
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4.根据此镜像启动一个容器
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docker run -d --name mysshdcontainer IP:23:22 sshddocker
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5.查看生成的容器
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[root@web01 sshddockerfile]
# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f4620f5dd045 sshddocker
"/usr/sbin/sshd -D"
6 minutes ago Up 6 minutes IP:23->22
/tcp
mysshdcontainer
[root@web01 sshddockerfile]
#
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6.远程登录测试
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[root@web02 ~]
# ssh admin@59.110.25.215 -p 23
admin@59.110.25.215's password:
[admin@f4620f5dd045 ~]$
[admin@f4620f5dd045 ~]$
sudo
-i
[
sudo
] password
for
admin:
[root@f4620f5dd045 ~]
# pwd
/root
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7.查看容器的IP
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yum -y
install
net-tools
[root@f4620f5dd045 ~]
# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.2 netmask 255.255.240.0 broadcast 0.0.0.0
inet6 fe80::42:c0ff:fea8:2 prefixlen 64 scopeid 0x20<link>
ether 02:42:c0:a8:00:02 txqueuelen 0 (Ethernet)
RX packets 814 bytes 377183 (368.3 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 565 bytes 64761 (63.2 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 0 (Local Loopback)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@f4620f5dd045 ~]
#
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本文转自 小小三郎1 51CTO博客，原文链接：http://blog.51cto.com/wsxxsl/1889535，如需转载请自行联系原作者
