docker的试用
docker -version:查看是否已经安装了docker；并确定docker是否正在运行？
- 搜索镜像文件：比如说查找名为教导的tutorial的image
docker search tutorial
you@tutorial:~$ docker search tutorial
Found 1 results matching your query ("tutorial")
NAME DESCRIPTION
learn/tutorial An image for the interactive tutorial
2.下载刚刚搜索到的image；比如说教导image的镜像文件
you@tutorial:~$ docker pull learn/tutorial
Pulling repository learn/tutorial from https://index.docker.io/v1
Pulling image 8dbd9e392a964056420e5d58ca5cc376ef18e2de93b5cc90e868a1bbc8318c1c (precise) from ubuntu
Pulling image b750fe79269d2ec9a3c593ef05b4332b1d1a02a62b4accb2c21d589ff2f5f2dc (12.10) from ubuntu
Pulling image 27cf784147099545 () from tutorial
3.使用docker run让刚刚下载的容器say hello world
you@tutorial:~$ docker run learn/tutorial echo "hello world"
hello world
4.为刚刚的容器安装ping的安装包
you@tutorial:~$ docker run learn/tutorial apt-get install -y ping
Reading package lists...
Building dependency tree...
The following NEW packages will be installed:
iputils-ping
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 56.1 kB of archives.
After this operation, 143 kB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu/ precise/main iputils-ping amd64 3:20101006-1ubuntu1 [56.1 kB]
debconf: delaying package configuration, since apt-utils is not installed
Fetched 56.1 kB in 1s (50.3 kB/s)
Selecting previously unselected package iputils-ping.
(Reading database ... 7545 files and directories currently installed.)
Unpacking iputils-ping (from .../iputils-ping_3%3a20101006-1ubuntu1_amd64.deb) ...
Setting up iputils-ping (3:20101006-1ubuntu1) ...
5：刚刚已经在容器中安装的ping的包；所以需要保存刚刚的修改。
首先通过docker ps -l获取刚刚得到的镜像文件。
you@tutorial:~$ docker ps -l
ID IMAGE COMMAND CREATED STATUS PORTS
6982a9948422 ubuntu:12.04 apt-get install ping 1 minute ago Exit 0
然后通过docker commit container_id
you@tutorial:~$ docker commit 6982a9948422 learn/ping
effb66b31edb
6:使用刚刚安装的ping包
you@tutorial:~$ docker run learn/ping ping www.google.com
PING www.google.com (74.125.239.129) 56(84) bytes of data.
64 bytes from nuq05s02-in-f20.1e100.net (74.125.239.148): icmp_req=1 ttl=55 time=2.23 ms
64 bytes from nuq05s02-in-f20.1e100.net (74.125.239.148): icmp_req=2 ttl=55 time=2.30 ms
64 bytes from nuq05s02-in-f20.1e100.net (74.125.239.148): icmp_req=3 ttl=55 time=2.27 ms
64 bytes from nuq05s02-in-f20.1e100.net (74.125.239.148): icmp_req=4 ttl=55 time=2.30 ms
64 bytes from nuq05s02-in-f20.1e100.net (74.125.239.148): icmp_req=5 ttl=55 time=2.25 ms
64 bytes from nuq05s02-in-f20.1e100.net (74.125.239.148): icmp_req=6 ttl=55 time=2.29 ms
64 bytes from nuq05s02-in-f20.1e100.net (74.125.239.148): icmp_req=7 ttl=55 time=2.23 ms
64 bytes from nuq05s02-in-f20.1e100.net (74.125.239.148): icmp_req=8 ttl=55 time=2.30 ms
64 bytes from nuq05s02-in-f20.1e100.net (74.125.239.148): icmp_req=9 ttl=55 time=2.35 ms
-> This would normally just keep going. However, this emulator does not support Ctrl-C, so we quit here.
7：查询container的详细信息
you@tutorial:~$ docker inspect efefdc74a1d5
[2013/07/30 01:52:26 GET /v1.3/containers/efef/json
{
"ID": "efefdc74a1d5900d7d7a74740e5261c09f5f42b6dae58ded6a1fde1cde7f4ac5",
"Created": "2013-07-30T00:54:12.417119736Z",
"Path": "ping",
"Args": [
"www.google.com"
],
"Config": {
"Hostname": "efefdc74a1d5",
"User": "",
"Memory": 0,
"MemorySwap": 0,
"CpuShares": 0,
"AttachStdin": false,
"AttachStdout": true,
"AttachStderr": true,
"PortSpecs": null,
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": null,
"Cmd": [
"ping",
"www.google.com"
],
"Dns": null,
"Image": "learn/ping",
"Volumes": null,
"VolumesFrom": "",
"Entrypoint": null
},
"State": {
"Running": true,
"Pid": 22249,
"ExitCode": 0,
"StartedAt": "2013-07-30T00:54:12.424817715Z",
"Ghost": false
},
"Image": "a1dbb48ce764c6651f5af98b46ed052a5f751233d731b645a6c57f91a4cb7158",
"NetworkSettings": {
"IPAddress": "172.16.42.6",
"IPPrefixLen": 24,
"Gateway": "172.16.42.1",
"Bridge": "docker0",
"PortMapping": {
"Tcp": {},
"Udp": {}
}
},
"SysInitPath": "/usr/bin/docker",
"ResolvConfPath": "/etc/resolv.conf",
"Volumes": {},
"VolumesRW": {}
8:使用docker commit提交