have fun with docker try! http://www.docker.com/tryit

log

you@tutorial:~$ docker run learn/tutorial echo hello world
hello world 

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) ...


you@tutorial:~$ docker ps -l
ID                  IMAGE               COMMAND                CREATED             STATUS              PORTS
6982a9948422        ubuntu:12.04        apt-get install ping   1 minute ago        Exit 0


you@tutorial:~$ docker commit 
Usage: Docker commit [OPTIONS] CONTAINER [REPOSITORY [TAG]]
 
Create a new image from a container's changes
 
  -author="": Author (eg. "John Hannibal Smith <[email protected]>"
  -m="": Commit message
  -run="": Config automatically applied when the image is run. (ex: {"Cmd": ["cat", "/world"], "PortSpecs": ["22"]}')




tutorial:~$ docker commit learn/ping 6982 init
effb66b31edb


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.



you@tutorial:~$ docker ps
ID                  IMAGE               COMMAND               CREATED             STATUS              PORTS
efefdc74a1d5        learn/ping:latest   ping www.google.com   37 seconds ago      Up 36 seconds


you@tutorial:~$ docker inspect efef
[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": {}
  
  
  >> docker push learn/ping
  
  ...
  
                _ _       _                    _
__      _____| | |   __| | ___  _ __   ___  | |
\ \ /\ / / _ \ | |  / _` |/ _ \| '_ \ / _ \ | |
 \ V  V /  __/ | | | (_| | (_) | | | |  __/ |_|
  \_/\_/ \___|_|_|  \__,_|\___/|_| |_|\___| (_)
                                              
 
 
 
                        ##        .
                  ## ## ##       ==
               ## ## ## ##      ===
           /""""""""""""""""\___/ ===
      ~~~ {~~ ~~~~ ~~~ ~~~~ ~~ ~ /  ===- ~~~
           \______ o          __/
             \    \        __/
              \____\______/
 
              |          |
           __ |  __   __ | _  __   _
          /  \| /  \ /   |/  / _\ |
          \__/| \__/ \__ |\_ \__  |