Docker Container Tutorial #6 Docker Container Users

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. In the 6th Docker Container Tutorial I demonstrate how to connect to a docker container via a specific user.
By default docker attaches to a container using the root user.
This isn't ideal for security reasons and some applications need to run as certain users.
In this tutorial I create a Unix user account inside a Ubuntu container.
I then connect to that user from the host machine.

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#docker #devops #howtocodewell

[howtocodewell]

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[nasamind]

your all 7 min is useful .. thank you..

[priyankagoel]

Thanks a lot. It was very useful for me

[BDGKruger]

Can one create an extra user in the dockerfile? For instance I run an app and filebeats, filebeats must run as user filebeat but my other app run on his usual user, I assume root.

[premkumarwaghmare]

I was looking for the Docker File Instruction USER

[RaineWilder]

Question: How is it that the user pete exists in the container after the container has stopped? From what I've read so far a container is immutable and doesn't save any changes to the filesystem. My understanding was that the user needs to be added in the Dockerfile instructions when an image is built. I guess I misunderstood the container immutability. Would you care to explain?

[sonyylj]

I have run docker to mount the persistent volume, but the permissions of the host and the mysql container are inconsistent, which makes it impossible to write mysql data to the mount volume. How can I solve this problem?

[DevenSitapara]

docker run -it -u pete ubuntu /bin/bash

docker: Error response from daemon: unable to find user pete: no matching entries in passwd file.

[dominikkaspar]

Nice quick demo!
One question though: why can you simply "log in" as user pete into the container without requiring to enter any password?

[test]

can we map local users into a container?