搭建了docker环境，就来体验一下Docker，常用docker image命令如下：
1. 搜索docker image
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root@localhost ~]# docker search ubuntu
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
ubuntu Ubuntu is a Debian-based Linux operating s... 2954 [OK]
ubuntu-upstart Upstart is an event-based replacement for ... 58 [OK]
dorowu/ubuntu-desktop-lxde-vnc Ubuntu with openssh-server and NoVNC on po... 32 [OK]
torusware/speedus-ubuntu Always updated official Ubuntu docker imag... 25 [OK]
ubuntu-debootstrap debootstrap --variant=minbase --components... 22 [OK]
tleyden5iwx/ubuntu-cuda Ubuntu 14.04 with CUDA drivers pre-installed 18 [OK]
rastasheep/ubuntu-sshd Dockerized SSH service, built on top of of... 16 [OK]
consol/ubuntu-xfce-vnc Ubuntu container with "headless" VNC sessi... 8 [OK]
ioft/armhf-ubuntu [ABR] Ubuntu Docker images for the ARMv7(a... 7 [OK]
n3ziniuka5/ubuntu-oracle-jdk Ubuntu with Oracle JDK. Check tags for ver... 7 [OK]
nuagebec/ubuntu Simple always updated Ubuntu docker images... 4 [OK]
nickistre/ubuntu-lamp-wordpress LAMP on Ubuntu with wp-cli installed 3 [OK]
nimmis/ubuntu This is a docker images different LTS vers... 3 [OK]
maxexcloo/ubuntu Docker base image built on Ubuntu with Sup... 2 [OK]
sylvainlasnier/ubuntu Ubuntu 15.10 root docker images with commo... 1 [OK]
isuper/base-ubuntu This is just a small and clean base Ubuntu... 1 [OK]
densuke/ubuntu-jp-remix Ubuntu Linuxの日本語remix風味です 1 [OK]
seetheprogress/ubuntu Ubuntu image provided by seetheprogress us... 1 [OK]
nickistre/ubuntu-lamp LAMP server on Ubuntu 1 [OK]
teamrock/ubuntu TeamRock's Ubuntu image configured with AW... 0 [OK]
konstruktoid/ubuntu Ubuntu base image 0 [OK]
birkof/ubuntu Ubuntu 14.04 LTS (Trusty Tahr) 0 [OK]
zoni/ubuntu 0 [OK]
esycat/ubuntu Ubuntu LTS 0 [OK]
rallias/ubuntu Ubuntu with the needful 0
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2. 下载image
3. 查看image
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[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
ubuntu latest d55e68e6cc9c 4 weeks ago 187.9 MB
ubuntu 14.04 d55e68e6cc9c 4 weeks ago 187.9 MB
training/sinatra latest f0f4ab557f95 19 months ago 447 MB
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4. 删除image
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[root@localhost ~]# docker rm training/sinatra
Error response from daemon: no such id: training/sinatra
Error: failed to remove containers: [training/sinatra]
[root@localhost ~]# docker rm f0f4ab557f95
Error response from daemon: no such id: f0f4ab557f95
Error: failed to remove containers: [f0f4ab557f95]
[root@localhost ~]# docker rmi f0f4ab557f95
Untagged: training/sinatra:latest
Deleted: f0f4ab557f954f3e04177663a3af90e88641bcdcce1f02ac900dbd9768ef4945
Deleted: 79e6bf39f99322cc062a79bec4a09de0dd19cb7f5f735b4b6b7832c04b13bb45
Deleted: ce80548340bb03726d391bb8fa4d134f8418c2fff90be9a7323560debdea9bd2
Deleted: e809f156dc985e07105fdc86ec05eb03eb7aac8636dc210e8595d31b55787f4a
Deleted: bfab314f3b766eddf9778f8dce089f44e84ea028f4a44ce68740dce81a844ec8
Deleted: be88c4c27e80023b6aea82f0f2e15fb21c6f4193fe814e5b58010d356dd7846b
Deleted: 3e76c0a80540a0d36493ae7110796fc92f559a191454e3ac19c1d4c650bdd9e0
Deleted: 511136ea3c5a64f264b78b5433614aec563103b4d4702f3ba7d4d2698e22c158
You have new mail in /var/spool/mail/root
[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
ubuntu latest af88597ec24b 6 days ago 187.9 MB
ubuntu 14.04 d55e68e6cc9c 4 weeks ago 187.9 MB
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5. 运行image
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[root@localhost ~]# docker run -i -t apache2
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6. kill运行的docker image
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[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
68333b272b52 ubuntu "/bin/bash" 18 minutes ago Up 18 minutes clever_babbage
0ca2aff5b94b ubuntu "bash" 48 minutes ago Up 48 minutes focused_hypatia
You have new mail in /var/spool/mail/root
[root@localhost ~]# docker kill 68333b272b52
68333b272b52
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
0ca2aff5b94b ubuntu "bash" 54 minutes ago Up 54 minutes focused_hypatia
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7. 制作image
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[root@localhost tmp]# more Dockerfile
FROM apache2
RUN apt-get install -y wget
[root@localhost tmp]# docker build -t wget .
Sending build context to Docker daemon 2.609 MB
Sending build context to Docker daemon
Step 0 : FROM apache2
---> f5cf247f22af
Step 1 : RUN apt-get install -y wget
---> Running in ab3cd326c53c
[root@localhost tmp]# docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
wget latest be8bf51f39d5 29 seconds ago 229.1 MB
apache2 latest f5cf247f22af 5 hours ago 223.8 MB
ubuntu latest af88597ec24b 6 days ago 187.9 MB
ubuntu 14.04 d55e68e6cc9c 4 weeks ago 187.9 MB
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8. docker volume clean
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docker system prune --all --volumes --force
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