docker安装nsenter，找不到命令

Question

当我使用jpetazzo/nsenter将nsenter安装到"/usr/local/bin"时

但是我在"/usr/local/bin“中找不到nsenter，并且"bash: nsenter: command not found"

bash-3.2$ docker images
REPOSITORY                         TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
ubuntu                             mengka              8eaa4ff06b53        2 weeks ago         188.3 MB
fedora                             latest              834629358fe2        2 weeks ago         241.3 MB
jpetazzo/nsenter                   latest              6ed3da1d7fa6        7 weeks ago         367.7 MB



bash-3.2$ docker run -v /usr/local/bin:/target jpetazzo/nsenter
Installing nsenter to /target
Installing docker-enter to /target


bash-3.2$ docker ps -a
CONTAINER ID        IMAGE                                     COMMAND                CREATED             STATUS                      PORTS               NAMES
c0c5ce8f8059        jpetazzo/nsenter:latest                   "/bin/sh -c /install   8 seconds ago       Exited (0) 7 seconds ago                        adoring_colden      
171c2439b5c7        jpetazzo/nsenter:latest                   "/bin/sh -c /install   4 minutes ago       Exited (0) 4 minutes ago                        insane_pasteur      
07d6e341af00        jpetazzo/nsenter:latest                   "/bin/sh -c /install   11 minutes ago      Exited (0) 9 minutes ago                        stupefied_carson    
18cab084f4f6        mengka-image-time01:latest                "/bin/sh mengka.sh"    19 hours ago        Exited (0) 4 hours ago                          fervent_morse


bash-3.2$ nsenter
bash: nsenter: command not found

Answer 1

我知道它没有回答这个问题，但是你知道Docker 1.3引入了一个新的"exec“命令吗？

• https://docs.docker.com/reference/commandline/cli/#exec
• http://blog.docker.com/2014/10/docker-1-3-signed-images-process-injection-security-options-mac-shared-directories/

Answer 2

你应该使用

    docker run --name nsenter -it ubuntu:14.04 to enter a os like ubuntu ,or center os ,and you can

Answer 3

docker run --rm jpetazzo/nsenter cat /nsenter > /tmp/nsenter && chmod +x /tmp/nsenter