Unable to chown on mounted volume

[14to9]

Hi Nathan,

Love love this project so far. Trying it out today on our nine container (locally docker-compose'd) project has everything running amazingly smoothly (and so much faster IO than VirtualBox thankyouverymuch)

BUT

One issue is this: On our simulated ftp host, the container we're running attempts to run chown on the mounted path and fails. Here's the step to reproduce (requires a local directory to test with, can be empty):

$ docker run -v /Users/14to9/dev/project/ftp:/ftp -it -e USERNAME=a -e PASSWORD=b morrisjobke/docker-proftpd:latest 
Setting credentials to a:b
chown: changing ownership of '/ftp/abcbwi-1438018428_20150727-173347_204.xml': Operation not permitted
chown: changing ownership of '/ftp': Operation not permitted
$ 

Is this expected behavior from dlite, or the permissions issue it feels like?

Thanks again for this project 👍 💯

[nlf]

so those chown steps would actually be running on an nfs mount which enables root_squash by default to protect your files. i'll have to see if i can tweak the nfs export config to allow for this.

[emaiax]

I guess I'm having the same issue trying to mount postgresql with a persistent data volume on my /Users path.

/Code/db $ docker run --rm -v "/Users/emaiax/Code/db/data:/var/lib/postgresql/data" postgres
chown: changing ownership of ‘/var/lib/postgresql/data’: Operation not permitted

I don't know if it's the same issue, let me know if I'm on the wrong place.

[nlf]

if you edit /etc/exports and change the -mapall=##:## (where ## will be your UID and GID) to -maproot=root:wheel does this resolve the issue for both of you?

[nlf]

oh, note that after doing that you'll have to run sudo nfsd update and then dlite stop && dlite start for the change to take effect

[arnested]

Changing /etc/exports as described here and the change from #69 finally made me run MariaDB-containers with /var/lib/mysql on a volume!

👍

[emaiax]

Yeah, that works like a charm! 👯

[14to9]

Thanks, Nathan!

👍🏼

On Jan 30, 2016, at 2:40 PM, Nathan LaFreniere notifications@github.com wrote:

Closed #50 via ad08a42.

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