ubuntu - Docker-Compose: permission denied / no matching entries in passwd file

Question

docker-compose and linux newbie here. I set up my first docker-compose container and get some errors in my docker logs, which I would like to fix:

failed to setup application, mkdir /mnt/vg1/myapp/: permission denied can't make directory /mnt/vg1/myapp

so I double-checked the directory permissions, which look fine to me:

drwxrwx--- 2 myuser docker  4096 Jan 22 20:54 myapp/

(I also tried chmod 777, which didn't solve the errors)

Then I checked, how to specify a user for running docker-compose up. I added the user:-line to my docker-compose.yml:

version: '2'

services:
    myapp:
        build: .
        image: myuser/myapp:latest
        container_name: "myapp"
        hostname: "myapp"
        user: "myuser"
        restart: always
...

Now things got worse: I cannot recreate my docker container.

myuser@myhost:/opt/mydocker$ docker-compose up -d
Removing myapp
Recreating 55419e7048cc_myapp ... error

ERROR: for 55419e7048cc_myapp  Cannot start service myapp: unable to find user myuser: no matching entries in passwd file

ERROR: for myapp Cannot start service myapp: unable to find user myuser: no matching entries in passwd file
ERROR: Encountered errors while bringing up the project.

So I checked /etc/passwd:

root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
bin:x:2:2:bin:/bin:/usr/sbin/nologin
sys:x:3:3:sys:/dev:/usr/sbin/nologin
sync:x:4:65534:sync:/bin:/bin/sync
...
myuser:x:1001:1001:My Admin User,,,:/home/myuser:/bin/bash

Seems fine for me. So I'm running out of ideas, how to fix this error. :/

Any ideas, what I might be missing?

Many thanks in advance!

question from:https://stackoverflow.com/questions/65854051/docker-compose-permission-denied-no-matching-entries-in-passwd-file

Answer 1

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