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COPY different with btrfs?

(Cyaer) #1

I actually have a problem with a Dockerfile from (commit 6a158ca2d2c5fdec597f1025c58fad90a57312dc). There the code

COPY requirements.txt .

creates a “Not a directory” error with my btrfs based docker system. The developer of this tool has no problems with overlay filesystem. Are there known differences between btrfs, aufs, or overlay?

(Vrms) #2

do you mean

A) your host OS is installed on btrfs? … or
B) your docker is setup using the btrfs storage driver?

(Cyaer) #3

I am running productive docker systems with -s btrfs (so B). But this more or less implies that the whole system is running with btrfs (A) :wink:

But also the machine I build the containers with is a btrfs laptop (A) with running docker -s btrfs (B) - and this is the machine I tried to CP file /path which failed but seems to work with overlay (I guess the developer uses default docker settings, no -s btrfs neither a btrfs system).