#docker-dev

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        [13docker] 15SvenDowideit closed pull request #7703: Update debian.md - add small para with notes for Debian Stable (Wheezy) and earlier (06master...06patch-1) 02http://git.io/muTBBw
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      • mwhudson
        SvenDowideit_: i guess to use btfs i need to have a btrfs volume and point docker at it somehow?
      • SvenDowideit_
        ya
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      • mwhudson
        (this kernel does seem to have btrfs support)
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      • SvenDowideit_
        make a btrfs partition
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      • then use -g to point to ut, and -s btrfs
      • bkc__
        mwhudson: apt-get install btrfs-tools :)
      • SvenDowideit_
        na, real men format the disk using a hex editor
      • SvenDowideit_ hasn't done that for almost 30 years
      • mmmm, i think
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      • mwhudson
        ok
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      • Storage Driver: btrfs
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      • so now i can run docker run and it won't eat my system? :)
      • bkc__
        SvenDowideit_: ... hardcore :P
      • SvenDowideit_
        dunno - i'm wondering if it will do the same
      • mwhudson
        let's find out
      • SvenDowideit_
        as the first happening looked more like a lack of namespacing to me
      • mwhudson
        i already have the powerstab command in shell history :)
      • SvenDowideit_
        grin
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      • bkc__: na, thats just how things were back then
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      • bkc__
        SvenDowideit_: indeed
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      • SvenDowideit_
        disks were unreliable, so you'd regularly need to fix them up, and they were small enough to hand hack
      • bkc__
        I'm just waiting for you to say that you've controlled computers with cables ;)
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      • mwhudson
        yeah, no, that broke things again
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      • /dev/loop2 on / type btrfs (rw,relatime,space_cache)
      • SvenDowideit_
        mmm - my thesis was an autonomous robotic vacum cleaner - and i designed, laid out and then built the pcb, then built a semi-realtime os for it
      • but na, i wated my dad bootup pdp-11's using just the switches - does that count? :)
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      • mwhudson: /me is currently out of depth - crosbymichael would be 'the guy'
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      • bkc__
        SvenDowideit_: counts ^.^
      • SvenDowideit_
        :)
      • it all makes my phone feel so very awesome
      • mwhudson
        so my current docker/arm64 status is i can build it, and you can run something in a container!
      • SvenDowideit_
        mwhudson: considering you had aufs surprises - do you have all the cgroups support on?
      • mwhudson
        ... once
      • SvenDowideit_: i don't know
      • SvenDowideit_
        :)
      • mwhudson
        do you know how to tell?
      • SvenDowideit_
        I was expecting the daemon to complain bitterly
      • oh wait, some clever bugger has a check script
      • mwhudson
        it does say this: 2014/09/01 01:05:57 WARNING: Your kernel does not support cgroup swap limit.
      • SvenDowideit_
        look in /proc/cgroups and /dev/cgroups while I go look for it in hack
      • mwhudson
        but that doesn't really sound bitter enough
      • SvenDowideit_
        check-config.sh in crontrib
      • ya
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      • mwhudson
        i think i'll need to reboot before i can run that :)
      • SvenDowideit_
        and whatever you find out, if we can get a check for that added to that script, that would be neat
      • hehe
      • mwhudson
        SvenDowideit_: only red is
      • - "aufs":
      • - CONFIG_AUFS_FS: missing
      • SvenDowideit_
        but nothing suggesting the namespacing is not ok - the next thing I'd do, is do some experiments doing fs namespacing manually
      • mwhudson
        ok
      • SvenDowideit_
        to confirm that it works - at which point, it might be libcontainer not quite working on your arm64 hack
      • mwhudson
        actually i think the next thing i need to do is have lunch :-)
      • SvenDowideit_
        ooo, you could try the lxc driver
      • mwhudson
        oh right
      • lxc works fine on arm64 afaik
      • SvenDowideit_
        nice :)
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      • mwhudson
        how do i use the lxc driver?
      • oh -e lxc
      • SvenDowideit_
        "_
      • mwhudson
        bah /.dockerinit: error while loading shared libraries: libgo.so.5: cannot open shared object file: No such file or directory
      • i guess i need to actually make a static binary then, rather than just pretending :)
      • lunch time
      • SvenDowideit_: thanks for your help so far
      • SvenDowideit_
        :) its fun :)
      • mwhudson
        SvenDowideit_: so with some hacking, i have a genuinely static docker binary and using the lxc execdriver works
      • SvenDowideit_
        much yay :)
      • mwhudson
        no kidding!
      • SvenDowideit_
        twould be nice if we can test / error on whatever didn't work before tho
      • for the next porterer
      • mwhudson
        yeah, so this means there is some libcontainer problem?
      • (probably, anyway)
      • SvenDowideit_
        possibly - that dockerinit thing seems pertinant
      • mwhudson
        well it still happens with a genuinely static binary
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      • crosbymichael
        You probably need to set some values for that arch
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