CODEWITHSUNDEEP
dockerdocker-volume
Vishnu
Vishnu

Reputation: 551

Cannot mount volume in docker container when directory name contains colon

I cannot mount a volume to a docker container when the directory name contains a colon (:)

The name of the directory is 2012-08-05-00:16:37 and I prefer not renaming the directory. I tried:

docker run -it --name test1 \
-v /host_system_path/2012-08-05-00\:16\:37/:/container_path/2012-08-05-00\:16\:37/ 
image_name

I get the error:

docker: Error response from daemon: invalid bind mount spec.See 
'docker run --help'.

If I rename the directory without spaces or only with hyphens, then the directory is mounted into the container without any issues. Can someone point out how can I solve the problem when the directory contains a colon.

I am on Ubuntu:16.04 and Docker version 17.06.0-ce.

Upvotes: 2

Views: 3085

Answers (2)

phil294
phil294

Reputation: 10852

Colons are currently not supported when specifying directory mappings via -v, and it seems you cannot escape them either.

You need to leverage --mount instead:

docker run ... --mount type=bind,source=/some:colon:file,destination=/container-path ...

In the worst of cases, you may of course alternatively still work around this limitation with a temporary system link (ln -s) or rename the target directory temporarily.

Upvotes: 2

wmorrell
wmorrell

Reputation: 5307

It's an open issue with Docker. But in your case, why would docker run -it --name test1 -v /host_system_path:/container_path image_name not be sufficient?

Upvotes: 1

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