容器退出时我丢失了数据

尽管有Docker的Interactive教程和常见问题解答,但当容器退出时,我仍然丢失了数据。

我已经按照以下说明安装了Docker:http

:

//docs.docker.io/en/latest/installation/ubuntulinux

在ubuntu 13.04上没有任何问题。

但是退出时它将丢失所有数据。

iman@test:~$ sudo docker version

Client version: 0.6.4

Go version (client): go1.1.2

Git commit (client): 2f74b1c

Server version: 0.6.4

Git commit (server): 2f74b1c

Go version (server): go1.1.2

Last stable version: 0.6.4

iman@test:~$ sudo docker run ubuntu ping

2013/10/25 08:05:47 Unable to locate ping

iman@test:~$ sudo docker run ubuntu apt-get install 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 0s (195 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) ...

iman@test:~$ sudo docker run ubuntu ping

2013/10/25 08:06:11 Unable to locate ping

iman@test:~$ sudo docker run ubuntu touch /home/test

iman@test:~$ sudo docker run ubuntu ls /home/test

ls: cannot access /home/test: No such file or directory

我还通过相同结果的交互式会话对其进行了测试。我忘记了什么吗?

回答:

正如@ mohammed-noureldin和其他人所说,实际上这 的 。每次它只是创建一个新的容器。

回答:

您需要提交对容器所做的更改,然后运行它。尝试这个:

sudo docker pull ubuntu

sudo docker run ubuntu apt-get install -y ping

然后使用以下命令获取容器ID:

sudo docker ps -l

提交对容器的更改:

sudo docker commit <container_id> iman/ping

然后运行容器:

sudo docker run iman/ping ping www.google.com

这应该工作。

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