Root password inside a Docker container

Question

I\'m using a Docker image which was built using the USER command to use a non-root user called dev. Inside a container, I\'m \"dev\", but I want to edit the

Answer 1

When you start the container, you will be root but you won't know what root's pw is. To set it to something you know simply use "passwd root". Snapshot/commit the container to save your actions.

Answer 2

You can log into the Docker container using the root user (ID = 0) instead of the provided default user when you use the -u option. E.g.

docker exec -u 0 -it mycontainer bash

root (id = 0) is the default user within a container. The image developer can create additional users. Those users are accessible by name. When passing a numeric ID, the user does not have to exist in the container.

from Docker documentation

Update: Of course you can also use the Docker management command for containers to run this:

docker container exec -u 0 -it mycontainer bash

Answer 3

try the following command to get the root access

$ sudo -i 

Answer 4

You can use the USER root command in your Dockerfile.