Docker Ubuntu 12.04

当我从Docker INDEX下载一个全新的Ubuntu：12.04容器时，它没有任何工作。它甚至没有sudo或lsb_release。有没有人有任何想法为什么或如何让容器进入可用的状态？谢谢。Docker Ubuntu 12.04

2014-05-21 Greg

请首先确定“可以使用的状态”。对我来说，bash可以工作，你可以通过'apt-get'获取所有精确的依赖关系。 – shawnzhu

这个问题似乎是无关紧要的，因为它是关于一般计算而不是编程。 –

请列出您输入的命令，并描述它对“没有任何作用”的含义。显然它看起来已经下载了。 –

看到你做了什么并且知道你的期望会很有趣。但这里是一个工作的例子，也许这有助于：

# get the image 
docker pull ubuntu 

# run pwd in the image and see that you are in "/" 
docker run ubuntu pwd 
/

# curl a website and see that curl is not installed 
docker run ubuntu curl www.google.com 
2014/05/22 07:52:42 exec: "curl": executable file not found in $PATH 

# update apt-get 
docker run ubuntu apt-get update 

# Now attention: Docker will not change the base image Ubuntu! 
# So apt is not updated in your Ubuntu image! Instead, Docker 
# will create a new container every time you run a command. Let's see 
# how the new container is called (your CONTAINER ID will be different!): 
docker ps -a 
CONTAINER ID  IMAGE        COMMAND    CREATED    STATUS 
a7ae5dae6dd8  ubuntu:12.04      apt-get update   53 seconds ago  Exited (0) 40 seconds ago              nostalgic_lumiere 

# So container a7ae5dae6dd8 is Ubuntu + apt-get update. Give it 
# a name and save it as a new image: 
docker commit a7ae my-ubuntu 

# Now install curl in my-ubuntu 
docker run my-ubuntu apt-get install -y curl 

# And again: the image my-ubuntu is not changed! Instead we have a new 
# container which has curl installed: 
docker ps -a 
CONTAINER ID  IMAGE        COMMAND    CREATED    STATUS 
e07118069479  my-ubuntu:latest     apt-get install -y c About a minute ago Exited (0) 45 seconds ago              naughty_wozniak 
a7ae5dae6dd8  ubuntu:12.04      apt-get update   9 minutes ago  Exited (0) 9 minutes ago              nostalgic_lumiere 

# Let's save this container as our image: 
docker commit e071 my-ubuntu 

# and now run curl on my-ubuntu: 
docker run my-ubuntu curl www.google.com 
    % Total % Received % Xferd Average Speed Time Time  Time Current 
           Dload Upload Total Spent Left Speed 
100 258 100 258 0  0 10698  0 --:--:-- --:--:-- --:--:-- 25800 
<HTML><HEAD><meta http-equiv="content-type" content="text/html;charset=utf-8"> 
<TITLE>302 Moved</TITLE></HEAD><BODY> 
<H1>302 Moved</H1> 
The document has moved 
<A HREF="http://www.google.de/?gfe_rd=cr&amp;ei=ZrB9U4_eH4HW_AbjvoG4Ag">here</A>. 
</BODY></HTML>

我希望能帮助看看Docker是如何工作的。为了让图像进入一个可以使用的状态（安装你的包和东西），你当然不会像上面那样手动完成它。相反，你将创建一个Dockerfile建立形象：

FROM Ubuntu 
RUN apt-get update 
RUN apt-get install -y curl

，并建立类似docker build . -t my-ubuntu想要的图像。

来源

2014-05-22 08:13:25

Docker Ubuntu 12.04

回答

相关问题