Installation failing due to ACL support about elkarbackup-docker

[xezpeleta]

Sorry but the Docker image uses the ElkarBackup deb package, which needs ACL support enabled.

Apparently, even using Docker containers, you need to mount your / with ACL enabled in your host system.

[xezpeleta]

More info here

[mkuurstra]

Hmm, still no luck. acl was already installed on my debian installation but enabled it explicitly in my fstab, rebooted and still no success. Am I the only one having this issue? In that case I'll just inspect my machine further.

[xezpeleta]

I'm going to check it under a Debian host (I'm currently testing Docker image under Ubuntu). What Debian and Docker version are you using?

Thanks

[mkuurstra]

Debian version 8.7
Docker version 17.03.1-ce

No, thank you :)

[xezpeleta]

Apparently with Ubuntu 16.04 and Docker 17.03.1-ce everything works well, but if we use Debian instead Ubuntu I have the same issue as you.

Ubuntu and Debian both has ACLs enabled and a usual ElkarBackup installation works well there. But the Docker container has a different behaviour (both are configured with AUFS); setfacl command will reply a Operation not supported in Debian, while in Ubuntu everything will work fine.

It looks a Docker compatibility problem with Debian... :-/

[mkuurstra]

Hmm, it's good to know it's nothing in my setup but I can't find anything that could cause this, I'm drawing a blank here. Any idea how to continue or where to report this?

[xezpeleta]

I've just opened an issue moby/moby#32915

Maybe someone could give us any clue there.

[xezpeleta]

We've just discovered in #18 thanks to @Paul-dH that this bug also affects to Ubuntu 17.04.

The easiest workaround to fix that is to change the Docker storage driver from AuFS to devicemapper:

# /etc/docker/daemon.json
{
    "storage-driver": "devicemapper"
}

Anyone has any other idea to fix this?

Thanks

[xezpeleta]

We're closing this issue because we've released a completely new Docker image:

https://hub.docker.com/r/elkarbackup/elkarbackup/