docker 使用随记

1.搜索镜像

jun@jun-VirtualBox:~$ sudo docker search ubuntu
jun@jun-VirtualBox:~$ sudo docker search ubuntu
NAME                                                      DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
ubuntu                                                    Ubuntu is a Debian-based Linux operating sys…   13503     [OK]
dorowu/ubuntu-desktop-lxde-vnc                            Docker image to provide HTML5 VNC interface …   602                  [OK]
websphere-liberty                                         WebSphere Liberty multi-architecture images …   282       [OK]
rastasheep/ubuntu-sshd                                    Dockerized SSH service, built on top of offi…   256                  [OK]
consol/ubuntu-xfce-vnc                                    Ubuntu container with "headless" VNC session…   244                  [OK]
ubuntu-upstart                                            DEPRECATED, as is Upstart (find other proces…   112       [OK]
neurodebian                                               NeuroDebian provides neuroscience research s…   88        [OK]
1and1internet/ubuntu-16-nginx-php-phpmyadmin-mysql-5      ubuntu-16-nginx-php-phpmyadmin-mysql-5          50                   [OK]
open-liberty                                              Open Liberty multi-architecture images based…   49        [OK]
ubuntu-debootstrap                                        DEPRECATED; use "ubuntu" instead                45        [OK]
i386/ubuntu                                               Ubuntu is a Debian-based Linux operating sys…   28
solita/ubuntu-systemd                                     Ubuntu + systemd                                24                   [OK]
1and1internet/ubuntu-16-apache-php-5.6                    ubuntu-16-apache-php-5.6                        14                   [OK]
1and1internet/ubuntu-16-apache-php-7.0                    ubuntu-16-apache-php-7.0                        13                   [OK]
1and1internet/ubuntu-16-nginx-php-phpmyadmin-mariadb-10   ubuntu-16-nginx-php-phpmyadmin-mariadb-10       11                   [OK]
1and1internet/ubuntu-16-nginx-php-5.6-wordpress-4         ubuntu-16-nginx-php-5.6-wordpress-4             9                    [OK]
1and1internet/ubuntu-16-nginx-php-5.6                     ubuntu-16-nginx-php-5.6                         8                    [OK]
1and1internet/ubuntu-16-apache-php-7.1                    ubuntu-16-apache-php-7.1                        7                    [OK]
darksheer/ubuntu                                          Base Ubuntu Image -- Updated hourly             5                    [OK]
1and1internet/ubuntu-16-nginx-php-7.0                     ubuntu-16-nginx-php-7.0                         4                    [OK]
owncloud/ubuntu                                           ownCloud Ubuntu base image                      3
1and1internet/ubuntu-16-nginx-php-7.1-wordpress-4         ubuntu-16-nginx-php-7.1-wordpress-4             3                    [OK]
1and1internet/ubuntu-16-php-7.1                           ubuntu-16-php-7.1                               1                    [OK]
smartentry/ubuntu                                         ubuntu with smartentry                          1                    [OK]
1and1internet/ubuntu-16-sshd                              ubuntu-16-sshd                                  1                    [OK]
jun@jun-VirtualBox:~$

2.下载镜像

jun@jun-VirtualBox:~$ sudo docker image pull ubuntu
Using default tag: latest
latest: Pulling from library/ubuntu
Digest: sha256:b5a61709a9a44284d88fb12e5c48db0409cfad5b69d4ff8224077c57302df9cf
Status: Image is up to date for ubuntu:latest
docker.io/library/ubuntu:latest
jun@jun-VirtualBox:~$

3.查看当前镜像

jun@jun-VirtualBox:~$ sudo docker images
REPOSITORY    TAG       IMAGE ID       CREATED        SIZE
ubuntu        latest    d13c942271d6   9 days ago     72.8MB
hello-world   latest    feb5d9fea6a5   3 months ago   13.3kB
jun@jun-VirtualBox:~$

4.docker 运行,创建容器

sudo docker run -it -p 9922:22 -w /usr1 -v /home/jun/dockerfiles/file/:/usr1 ubuntu /bin/bash

-p:端口映射,「:」前为主机端口号,后面为docker里面的端口号,这里就用22连接ssh

-w:docker 挂载目录

-v:主机目录映射,「:」前为主机目录,要从根目录开始写,后面是dock里面的目录

ubuntu:镜像名称

/bin/bash:docker用bash运行

5.docker 安装ssh

5.1 安装openssh

apt-get install openssh-server

5.2 给root设置密码,设置密码如root

passwd root

5.3 修改ssh配置文件,增加 PermitRootLogin yes 注意不要拼写错误

vi /etc/ssh/sshd_config
#LoginGraceTime 2m
#PermitRootLogin prohibit-password
PermitRootLogin yes
#StrictModes yes
#MaxAuthTries 6
#MaxSessions 10

5.4 重启ssh服务

root@d66a34cd1a8b:/# /etc/init.d/ssh restart
 * Restarting OpenBSD Secure Shell server sshd                                                                             [ OK ] 
root@d66a34cd1a8b:/# exit

5.5 退出docker Ctrl+p,Ctrl+q,连续敲这两组合键一次

5.6 用ssh连接 ssh root@127.0.0.1 -p 9922,密码输入root(上面配置的密码)

5.7 设置start后自动打开ssh

image.png

编辑.bashrc文件,增加以下内容

/etc/init.d/ssh start
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