CODEWITHSUNDEEP
docker
max
max

Reputation: 52253

How to find out who references a given volume?

I have a volume that isn't recognized as orphaned:

>docker volume ls -qf dangling=true
>docker volume ls
DRIVER              VOLUME NAME
local               70cb...

I assume it's used by one of my containers, but how can I find out which one?

Upvotes: 0

Views: 49

Answers (1)

programmerq
programmerq

Reputation: 6534

I don't believe there's a way to ask a volume what containers belong to, but you can ask what volumes a container has a reference to. You can loop over each container and look for the volume in question. For example, this bash loop around the docker CLI should do the trick:

export volume=70cb
for container in $(docker ps -aq); 
    do docker inspect $container \
       | grep $volume \
       && echo $container matches;
    done

This, of course, is prone to false positives in the off chance than any of the docker inspect output arbitrarily matches the value you pass in for the volume, but it is a good starting point.

Upvotes: 1

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