Docker usage Notes

Recently heard that Docker is very hot, these two days to learn a bit. I am practical is the Mac OS operating system.

For information on what is the benefits of Docker, Docker, and installation, please refer to: http://tech.uc.cn/?p=2726

First, the basic command

1. Install Ubuntu virtual machine

Docker pull Ubuntu

2. View image

@~Docker imagesREPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL sizeubuntu              latest              9bd07e480c5b        9 days ago          192.7 MB

3. Sign in to Ubuntu

Docker run-a stdin-a stdout-a stderr-i-T ubuntu/bin/  bash[email protected]:/# uname-3.16. 4-tinycore64 #1: x86_64 x86_64x86 _64 gnu/linux[email protected]:

Here's an explanation of the above command: Docker run-i-T <image>/bin/bash using image to create container and enter interactive mode, the login shell is/bin/bash

4, view container. After exiting Ubuntu, view

[Email protected]:/# exitexit@Docker PS-aCONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                      PORTS               NAMESccaffb725895        ubuntu:latest       "/bin/bash  "         3 minutes ago       Exited (0 seconds ago                       trusting_ Bohr       

Ii. Preservation of container

If I log in to Ubuntu later to enter these commands is too cumbersome, need to lock container

1. Start container

@~ $ docker PS-acontainer ID        IMAGE               COMMAND             CREATED             STATUS                      PORTS               NAMESccaffb725895        Ubuntu:latest       "/bin/bash"         3 minutes ago       Exited ( 0  the seconds ago                       Trusting_bohr       @~docker start ccaffb725895ccaffb725895

2, attach

@~ $ docker start ccaffb725895ccaffb725895@~Docker attach ccaffb725895[email protected ]:/# [email protected]:/# uname-3.16. 4-tinycore64 #1: £ x86_64x86_ x86_64 gnu/linux[email protected]:

3. Save image, Commit command

@~$ docker imagesrepository TAG IMAGE ID CREATED VIRTUAL Sizeubuntu Latest 9BD07E480C5B9Days ago192.7mb@~ $Docker commit-a "Liqiu <[email protected]>" ccaffb725895 ubuntu:ssh- ubuntu5d2941e8c0bf7fe988604f11d043a03331ec83536ce09f841e760d51156b6865@~$ docker imagesrepository TAG IMAGE ID CREATED VIRTUAL Sizeubuntu ssh -ubuntu5D2941E8C0BF about a minute ago192.7Mbubuntu Latest 9bd07e480c5b9Days ago192.7MB

Third, delete container

@~ $ docker Stop ccaffb725895ccaffb725895@~ $ docker ps-acontainer ID        IMAGE               COMMAND             created< C5/>status                       PORTS               NAMESccaffb725895        ubuntu:latest       "/bin/bash"           minutes ago      Exited (1275  minutes ago                       Trusting_bohr       @~Docker rm ccaffb725895ccaffb725895@~ $ docker ps-acontainer ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               names@

Iv. Recovery

After everything is calm, think of a problem, I installed a curl in the virtual machine, and I'll start it in a few days. Does curl still exist?

1. Go to Ubuntu and install Curl

@~ $ docker run-a stdin-a stdout-a stderr-i-t ubuntu/bin/bash[email protected]:/# sudo apt-install curl

2. After exiting, save the image

" Liqiu <[email protected]> " 0efb23b52565 ubuntu:curl-ubuntuaac468ce18c883bc71e849028a1718e57d80d3c6231840e6b1fdb4d66354bfe6@ ~ $ docker imagesrepository          TAG                 IMAGE ID            CREATED              VIRTUAL sizeubuntu              Curl-ubuntu         Aac468ce18c8        About a minute ago   204.1  mbubuntu              latest              9bd07e480c5b        9 days ago           192.7 MB

3. Re-enter the mirror

@~ $ docker imagesrepository          TAG                 IMAGE ID            CREATED              VIRTUAL sizeubuntu              Curl-ubuntu         Aac468ce18c8 about        a minute ago   204.1  mbubuntu              latest              9bd07e480c5b         9 days ago           192.7  mb@~ $ docker run-a stdin-a stdout-a stderr-i-t aac468ce18c8/ bin/bash[email protected]:/# curl www.baidu.com<! DOCTYPE html> ..... .........

Finish the job! ~

Docker usage Notes