Re: Ceph inside Docker containers inside VirtualBox

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On Fri, Apr 19, 2019 at 6:53 PM Varun Singh <varun.singh@xxxxxxxxx> wrote:
>
> On Fri, Apr 19, 2019 at 10:44 AM Varun Singh <varun.singh@xxxxxxxxx> wrote:
> >
> > On Thu, Apr 18, 2019 at 9:53 PM Siegfried Höllrigl
> > <siegfried.hoellrigl@xxxxxxxxxx> wrote:
> > >
> > > Hi !
> > >
> > > I am not 100% sure, but i think, --net=host does not propagate /dev/
> > > inside the conatiner.
> > >
> > >  From the Error Message :
> > >
> > > 2019-04-18 07:30:06  /opt/ceph-container/bin/entrypoint.sh: ERROR- The
> > > device pointed by OSD_DEVICE (/dev/vdd) doesn't exist !
> > >
> > >
> > > I whould say, you should add something like --device=/dev/vdd to the docker run command for the osd.
> > >
> > > Br
> > >
> > >
> > > Am 18.04.2019 um 14:46 schrieb Varun Singh:
> > > > Hi,
> > > > I am trying to setup Ceph through Docker inside a VM. My host machine
> > > > is Mac. My VM is an Ubuntu 18.04. Docker version is 18.09.5, build
> > > > e8ff056.
> > > > I am following the documentation present on ceph/daemon Docker Hub
> > > > page. The idea is, if I spawn docker containers as mentioned on the
> > > > page, I should get a ceph setup without KV store. I am not worried
> > > > about KV store as I just want to try it out. Following are the
> > > > commands I am firing to bring the containers up:
> > > >
> > > > Monitor:
> > > > docker run -d --net=host -v /etc/ceph:/etc/ceph -v
> > > > /var/lib/ceph/:/var/lib/ceph/ -e MON_IP=10.0.2.15 -e
> > > > CEPH_PUBLIC_NETWORK=10.0.2.0/24 ceph/daemon mon
> > > >
> > > > Manager:
> > > > docker run -d --net=host -v /etc/ceph:/etc/ceph -v
> > > > /var/lib/ceph/:/var/lib/ceph/ ceph/daemon mgr
> > > >
> > > > OSD:
> > > > docker run -d --net=host --pid=host --privileged=true -v
> > > > /etc/ceph:/etc/ceph -v /var/lib/ceph/:/var/lib/ceph/ -v /dev/:/dev/ -e
> > > > OSD_DEVICE=/dev/vdd ceph/daemon osd
> > > >
> > > >  From the above commands I am able to spawn monitor and manager
> > > > properly. I verified this by firing this command on both monitor and
> > > > manager containers:
> > > > sudo docker exec d1ab985 ceph -s
> > > >
> > > > I get following outputs for both:
> > > >
> > > >    cluster:
> > > >      id:     14a6e40a-8e54-4851-a881-661a84b3441c
> > > >      health: HEALTH_OK
> > > >
> > > >    services:
> > > >      mon: 1 daemons, quorum serverceph-VirtualBox (age 62m)
> > > >      mgr: serverceph-VirtualBox(active, since 56m)
> > > >      osd: 0 osds: 0 up, 0 in
> > > >
> > > >    data:
> > > >      pools:   0 pools, 0 pgs
> > > >      objects: 0 objects, 0 B
> > > >      usage:   0 B used, 0 B / 0 B avail
> > > >      pgs:
> > > >
> > > > However when I try to bring up OSD using above command, it doesn't
> > > > work. Docker logs show this output:
> > > > 2019-04-18 07:30:06  /opt/ceph-container/bin/entrypoint.sh: static:
> > > > does not generate config
> > > > 2019-04-18 07:30:06  /opt/ceph-container/bin/entrypoint.sh: ERROR- The
> > > > device pointed by OSD_DEVICE (/dev/vdd) doesn't exist !
> > > >
> > > > I am not sure why the doc asks to pass /dev/vdd to OSD_DEVICE env var.
> > > > I know there are five different ways to spawning the OSD, but I am not
> > > > able to figure out which one would be suitable for a simple
> > > > deployment. If you could please let me know how to spawn OSDs using
> > > > Docker, it would help a lot.
> > > >
> > > >
> >
> > Thanks Br, I will try this out today.
> >
> > --
> > Regards,
> > Varun Singh
>
> Hi,
> So following your suggestion I tried following two commands:
> 1. I added --device=/dev/vdd switch without removing OSD_DEVICE env
> var. This resulted in same error before
> docker run -d --net=host --pid=host --privileged=true
> --device=/dev/vdd -v /etc/ceph:/etc/ceph -v
> /var/lib/ceph/:/var/lib/ceph/ -v /dev/:/dev/ -e OSD_DEVICE=/dev/vdd
> ceph/daemon osd
>
>
> 2. Then I removed OSD_DEVICE env var and just added --device=/dev/vdd switch
> docker run -d --net=host --pid=host --privileged=true
> --device=/dev/vdd -v /etc/ceph:/etc/ceph -v
> /var/lib/ceph/:/var/lib/ceph/ -v /dev/:/dev/  ceph/daemon osd
>
> OSD_DEVICE related error went away and I think ceph created an OSD
> successfully. But it wasn't able to connect to cluster. Is it because
> I did not give and network related information? I get the following
> error now:
>
> 2019-04-18 08:30:47  /opt/ceph-container/bin/entrypoint.sh: static:
> does not generate config
> 2019-04-18 08:30:47  /opt/ceph-container/bin/entrypoint.sh:
> Bootstrapped OSD(s) found; using OSD directory
> 2019-04-18 08:30:47  /opt/ceph-container/bin/entrypoint.sh: Creating osd
> 2019-04-18 08:30:52.944 7f897ca6d700 -1 auth: unable to find a keyring
> on /var/lib/ceph/bootstrap-osd/ceph.keyring: (2) No such file or
> directory
> 2019-04-18 08:30:52.944 7f897ca6d700 -1 AuthRegistry(0x7f8978063e78)
> no keyring found at /var/lib/ceph/bootstrap-osd/ceph.keyring,
> disabling cephx
> 2019-04-18 08:30:52.964 7f897ca6d700 -1 auth: unable to find a keyring
> on /var/lib/ceph/bootstrap-osd/ceph.keyring: (2) No such file or
> directory
> 2019-04-18 08:30:52.964 7f897ca6d700 -1 AuthRegistry(0x7f89780bcad8)
> no keyring found at /var/lib/ceph/bootstrap-osd/ceph.keyring,
> disabling cephx
> 2019-04-18 08:30:52.964 7f897ca6d700 -1 auth: unable to find a keyring
> on /var/lib/ceph/bootstrap-osd/ceph.keyring: (2) No such file or
> directory
> 2019-04-18 08:30:52.964 7f897ca6d700 -1 AuthRegistry(0x7f897ca6be78)
> no keyring found at /var/lib/ceph/bootstrap-osd/ceph.keyring,
> disabling cephx
> 2019-04-18 08:30:52.976 7f897585d700 -1 monclient(hunting):
> handle_auth_bad_method server allowed_methods [2] but i only support
> [1]
> 2019-04-18 08:30:52.976 7f897ca6d700 -1 monclient: authenticate NOTE:
> no keyring found; disabled cephx authentication
> [errno 95] error connecting to the cluster
>
>
> I tried googling the error and came across a couple of filed bugs but
> no solution. Any help in fixing this would be great.
>
> --
> Regards,
> Varun Singh

Hi,
Any help here would be deeply appreciated.

-- 
Regards,
Varun Singh

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