Docker: jenkins:alpine into the container,Unable to obtain root permissions.
bash-4.3$ su
su: must be suid to work properly
bash-4.3$ sudo apk add wget
bash: sudo: command not found
mpv945
All 7 comments
It is expected behavior as it is best practice to run processes that dont require root as a user. To install packages to your docker container build your own image.
Btw. The image got curl if you dont want to build your own image.
Nols1000
on 15 Mar 2018
When there is a new update
New version of Jenkins (2.89.4) is available for download (changelog).
I download the new war package and can't update it to the directory.
mpv945
on 15 Mar 2018
Update your docker by pulling the version you like to update to from here and redeploy the jenkins container with the pulled image.
Nols1000
on 15 Mar 2018
Use this to get inside the container: docker exec -it --user root $(containerName) /bin/bash
mbrostami
on 7 Oct 2018
使用它来进入容器：
docker exec -it --user root $(containerName) /bin/bash
Thank you
munderline
on 3 Sep 2019
It is expected behavior as it is best practice to run processes that dont require root as a user.
@Nols1000 The processes are run inside a container. What's the harm in that? Not being able to su hinders debugging.
x-yuri
on 6 Nov 2019
For anyone with the same question as @x-yuri here are the first 3 results from Google that explain in good detail what the harm is in running as root users in containers.
https://engineering.bitnami.com/articles/why-non-root-containers-are-important-for-security.html
https://medium.com/@mccode/processes-in-containers-should-not-run-as-root-2feae3f0df3b
https://americanexpress.io/do-not-run-dockerized-applications-as-root/
Keep your containers safe y'all, and happy coding!
alexmherrmann
on 28 Apr 2020
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Most helpful comment
Use this to get inside the container:
docker exec -it --user root $(containerName) /bin/bash