docker - 如何在Jenkins docker容器中切换到root？

Question

我在Docker容器中设置了Jenkins服务器。我正在使用的图像是docker pull jenkins。之后，我通过docker exec -it b74d035352ec bash连接到容器。默认用户为jenkins，但我无法切换到root用户并出现以下错误:

jenkins@b74d035352ec:/$ su -
su: must be run from a terminal

运行 sudo时出现以下错误:

$ sudo ls

We trust you have received the usual lecture from the local System
Administrator. It usually boils down to these three things:

    #1) Respect the privacy of others.
    #2) Think before you type.
    #3) With great power comes great responsibility.

sudo: no tty present and no askpass program specified

有谁知道如何解决这个问题？我确实需要对该容器具有root权限。还是应该安装任何东西？如果需要，我可以根据该图像构建一个新图像。

Answer 1

您只能在构建期间执行此操作，如documentation中所述。

FROM jenkins
# if we want to install via apt
USER root
RUN apt-get update && apt-get install -y ruby make more-thing-here
# drop back to the regular jenkins user - good practice
USER jenkins

因此，您必须构建自己的镜像才能以root用户身份执行任务。