docker

Posted 2020-10-30

发布docker容器的web服务

查看本地镜像

将镜像启动为容器 new_centos

[[email protected] ~]# docker run --name new_centos -itd centos /bin/bash

进入容器 new_centos中安装vim,epel-release,net-tools,nginx，启动nginx时报错

将容器 new_centos 打包成镜像

[[email protected]ux-002 ~]# docker commit new_centos centos:nginx

容器映射，进入到容器里，再次启动nginx

[[email protected] ~]# docker run -itd --privileged -e "container=docker" -p 8080:80 centos:nginx /usr/sbin/init
1fa78208c57109cb501c18a176dd9fb2f77620e3285100628f86c21e0cfc887f
[[email protected] ~]# docker exec -it 1fa78208c5 /bin/bash
[[email protected] /]# systemctl start nginx

在浏览器中访问容器

发布docker容器的sshd服务

[[email protected] ~]# docker run -itd centos 
d2b2f907f72ce7bf1143e79315ad41352db1d5924c1487baf6e6892d1384e6cd
[[email protected] ~]# docker exec -it d2b2f907f72c bash
[[email protected] /]# yum install openssh openssh-clients openssh-server -y
[[email protected] /]# exit
[[email protected] ~]# docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS                  NAMES
d2b2f907f72c        centos              "/bin/bash"         3 minutes ago       Up 3 minutes                               pedantic_johnson
1fa78208c571        centos:nginx        "/usr/sbin/init"    41 minutes ago      Up 41 minutes       0.0.0.0:8080->80/tcp   stupefied_chandrasekhar
[[email protected] ~]# docker commit d2b2f907f72c centos:sshd
sha256:97b04b37ef07a8f8bd8ef44f97a9d9886ef3e9f5f64be5d6ae028ec351fc219a

[[email protected] ~]# docker run -itd --privileged -p 9000:22 centos:sshd /usr/sbin/init
e7eb5afce1f9c3b294fdfa30e6d99d3c6b42e67b869077ac0f23d47f5348fbfb
[[email protected] ~]# docker exec -it e7eb5afc bash
[[email protected] /]# systemctl start sshd
[[email protected] /]# passwd
Changing password for user root.
New password: 
BAD PASSWORD: The password is shorter than 8 characters
Retype new password: 
passwd: all authentication tokens updated successfully.