[英]Running Docker Interactive Shell
I am trying to run interactive shell for an image which I am running using docker-compose. 我正在尝试为使用docker-compose运行的图像运行交互式外壳。
I tried docker-run and docker-exec 我尝试了docker-run和docker-exec
xyz@abc:~$ sudo docker exec -it 235197ff4f0e /bin/bash
rpc error: code = 2 desc = oci runtime error: exec failed: container_linux.go:262: starting container process caused "exec: \"/bin/bash\": stat /bin/bash: no such file or directory"
xyz@abc:~$ sudo docker run -it drone/drone:0.7 /bin/bash
No help topic for '/bin/bash'
Trying to generate ssh key inside drone, so that i can clone from private repositories. 试图在无人机内部生成ssh密钥,以便我可以从专用存储库中克隆。
There are several things going on here. 这里发生了几件事。 I'd like to take a look at the second error first:
我想先看看第二个错误:
The drone/drone
image is configured to automatically run the /drone
command (which you can determine by using docker inspect
and looking for the Entrypoint
key). drone/drone
图像配置为自动运行/drone
命令(您可以通过使用Entrypoint
docker inspect
和寻找Entrypoint
密钥来确定)。 So if you run: 因此,如果您运行:
docker run drone/drone:0.7 help
You end up running, inside the container: 您最终在容器内运行:
drone help
And of course, if you run: 当然,如果您运行:
docker run drone/drone:0.7 /bin/bash
You are running, in the container: 您正在容器中运行:
drone /bin/bash
Hence the error message you are seeing ("No help topic for '/bin/bash'"), because you are passing an unrecognized option to the the drone
command. 因此,您看到的错误消息(“'/ bin / bash'的无帮助主题”),因为您将无法识别的选项传递给了
drone
命令。
The first error is much simpler. 第一个错误要简单得多。 Your error message is:
您的错误消息是:
exec: \"/bin/bash\": stat /bin/bash: no such file or directory
That seems pretty clear. 这似乎很清楚。 There is no
/bin/bash
. 没有
/bin/bash
。 In fact, if you inspect the contents of the image, you'll see that there is only a minimal filesystem. 实际上,如果您检查图像的内容,您会发现只有最小的文件系统。 The easiest way to look is by starting a container, then using
docker export
, like this: 最简单的查看方法是启动一个容器,然后使用
docker export
,如下所示:
$ docker run drone/drone:0.7 help
[...output doesn't matter...]
$ docker export $(docker ps -lq) | tar tf -
Which shows you: 显示以下内容:
.dockerenv
dev/
dev/console
dev/pts/
dev/shm/
drone
etc/
etc/hostname
etc/hosts
etc/mtab
etc/resolv.conf
etc/ssl/
etc/ssl/certs/
etc/ssl/certs/ca-certificates.crt
proc/
sys/
There's no /bin/bash
, no ssh
, no git
, etc, so you're not going to have much luck with your current plan. 没有
/bin/bash
,没有ssh
,没有git
等,因此您当前的计划不会有太多的运气。 You may want to consider cloning the remote repositories on your host and then exposing them to your container using a host volume mount ( -v /host/path:/container path
), or building a custom image that contains the tooling you need. 您可能要考虑克隆主机上的远程存储库,然后使用主机卷挂载(
-v /host/path:/container path
)将它们公开到容器中,或者构建包含所需工具的自定义映像。
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