If you are using a pre-created RBD image for this, you will need to disable all the image features that krbd doesn't support: # rbd feature disable dummy01 exclusive-lock,object-map,fast-diff,deep-flatten On Sun, Jan 7, 2018 at 11:36 AM, Traiano Welcome <traiano@xxxxxxxxx> wrote: > Hi List > > I'm getting the following error when trying to run docker with a rbd volume > (either pre-existing, or not): > > "VolumeDriver.Create: Unable to create Ceph RBD Image" > > Please could someone give me a clue as to how to debug this further and > resolve it? > > Details of my platform: > > 1. ceph version 10.2.10 (5dc1e4c05cb68dbf62ae6fce3f0700e4654fdbbe) > 2. Docker version 17.05.0-ce, build 89658be > 3. rbd-docker-plugin --version 2.0.1 > 4. Kernel: Linux lol-server-049 4.4.0-62-generic #83-Ubuntu SMP Wed Jan 18 > 14:10:15 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux > > Here are the details from the rbd-docker logs and syslogs: > > - Running docker with an as-yet-uncreated rbd volume, and rbd-docker-plugin > with --create=true: > > ``` > root@lol-server-045:~# docker run --volume-driver=rbd --volume dummy02:/mnt > centos:latest bash > docker: Error response from daemon: create dummy02: VolumeDriver.Create: > Unable to create Ceph RBD Image(dummy02): exit status 2. > See 'docker run --help'. > ``` > > - With an already created rbd volume, and rbd-docker-plugin with > --create=false: > > ``` > root@lol-server-045:~# docker run --volume-driver=rbd --volume dummy01:/mnt > centos:latest bash > docker: Error response from daemon: create dummy01: VolumeDriver.Create: > Ceph RBD Image not found: dummy01. > > ``` > > > - state of a pre-created rbd device: > > root@lol-server-045:/var/log# rbd ls| egrep dummy > dummy01 > > root@lol-server-045:/var/log# rbd info dummy01 > rbd image 'dummy01': > size 1096 MB in 274 objects > order 22 (4096 kB objects) > block_name_prefix: rbd_data.85d6238e1f29 > format: 2 > features: layering, exclusive-lock, object-map, fast-diff, > deep-flatten > flags: > > BUG: https://bugs.launchpad.net/ubuntu/+source/ceph/+bug/1578484 > > ``` > root@lol-server-045:/var/log# > root@lol-server-045:/var/log# rbd feature disable foo exclusive-lock > object-map fast-diff deep-flatten > rbd: error opening image foo: (2) No such file or directory > root@lol-server-045:/var/log# rbd feature disable dummy01 exclusive-lock > object-map fast-diff deep-flatten > root@lol-server-045:/var/log# rbd map dummy01 --pool rbd > /dev/rbd3 > ``` > > - rbd-docker-plugin.log entry following restart of the rbd-docker driver > service) > > ``` > 2018/01/07 23:45:20 main.go:121: INFO: Creating Docker VolumeDriver Handler > 2018/01/07 23:45:20 main.go:125: INFO: Opening Socket for Docker to connect: > /run/docker/plugins/rbd.sock > 2018/01/07 23:45:29 main.go:141: INFO: received TERM or KILL signal: > terminated > 2018/01/07 23:45:29 main.go:190: INFO: closing log file > 2018/01/07 23:45:29 main.go:91: INFO: starting rbd-docker-plugin version > 2.0.1 > 2018/01/07 23:45:29 main.go:92: INFO: canCreateVolumes=true, > removeAction="ignore" > 2018/01/07 23:45:29 main.go:101: INFO: Setting up Ceph Driver for > PluginID=rbd, cluster=, ceph-user=docker, pool=rbd, > mount=/var/lib/docker-volumes, config=/etc/ceph/ceph.conf > 2018/01/07 23:45:29 driver.go:85: INFO: newCephRBDVolumeDriver: setting base > mount dir=/var/lib/docker-volumes/rbd > 2018/01/07 23:45:29 main.go:121: INFO: Creating Docker VolumeDriver Handler > 2018/01/07 23:45:29 main.go:125: INFO: Opening Socket for Docker to connect: > /run/docker/plugins/rbd.sock > ``` > > - when attempting to run a docker image, specifying a volume that does not > yet exist: > > ``` > root@lol-server-045:/var/log# docker run -u 0 --privileged -it > --volume-driver rbd -v dummy02:/mnt:rw centos:latest bash > ``` > > > docker: Error response from daemon: create dummy02: VolumeDriver.Create: > Unable to create Ceph RBD Image(dummy02): exit status 2. > ``` > > - Log entry: > > ``` > 2018/01/07 23:45:29 driver.go:85: INFO: newCephRBDVolumeDriver: setting base > mount dir=/var/lib/docker-volumes/rbd > 2018/01/07 23:45:29 main.go:121: INFO: Creating Docker VolumeDriver Handler > 2018/01/07 23:45:29 main.go:125: INFO: Opening Socket for Docker to connect: > /run/docker/plugins/rbd.sock > 2018/01/07 23:46:56 api.go:188: Entering go-plugins-helpers getPath > 2018/01/07 23:46:56 driver.go:467: WARN: Image dummy02 does not exist > 2018/01/07 23:46:56 api.go:132: Entering go-plugins-helpers createPath > 2018/01/07 23:46:56 driver.go:145: INFO: API Create(&{"dummy02" map[]}) > 2018/01/07 23:46:56 driver.go:153: INFO: createImage(&{"dummy02" map[]}) > 2018/01/07 23:46:56 driver.go:687: INFO: Attempting to create new RBD Image: > (rbd/dummy02, %!s(int=20480), xfs) > 2018/01/07 23:46:56 driver.go:203: ERROR: Unable to create Ceph RBD > Image(dummy02): exit status 2 > ``` > > - docker log entries: > > > ``` > Jan 7 23:42:03 lol-server-045 kernel: [4063726.059726] aufs > au_opts_verify:1597:dockerd[107149]: dirperm1 breaks the protection by the > permission bits on the lower branch > Jan 7 23:42:30 lol-server-045 kernel: [4063752.624828] aufs > au_opts_verify:1597:dockerd[107147]: dirperm1 breaks the protection by the > permission bits on the lower branch > Jan 7 23:45:20 lol-server-045 rbd-docker-plugin[77813]: 2018/01/07 23:45:20 > main.go:179: INFO: setting log file: /var/log/rbd-docker-plugin.log > Jan 7 23:45:29 lol-server-045 rbd-docker-plugin[77856]: 2018/01/07 23:45:29 > main.go:179: INFO: setting log file: /var/log/rbd-docker-plugin.log > Jan 7 23:46:56 lol-server-045 kernel: [4064019.169722] aufs > au_opts_verify:1597:dockerd[107449]: dirperm1 breaks the protection by the > permission bits on the lower branch > Jan 7 23:46:56 lol-server-045 dockerd[107120]: > time="2018-01-07T23:46:56.857163090+08:00" level=error msg="Handler for POST > /v1.29/containers/create returned error: create dummy02: > VolumeDriver.Create: Unable to create Ceph RBD Image(dummy02): exit status > 2" > ``` > > - state of the ceph cluster: > > ``` > root@lol-server-045:/var/log# ceph -s > cluster 0bb54801-846d-47ac-b14a-3828d830ff3a > health HEALTH_OK > monmap e1: 1 mons at {lol-server-045=10.0.0.20:6789/0} > election epoch 6, quorum 0 lol-server-045 > fsmap e11: 1/1/1 up {0=lol-server-050=up:active} > osdmap e64: 5 osds: 5 up, 5 in > flags sortbitwise,require_jewel_osds > pgmap v1232770: 192 pgs, 3 pools, 14067 MB data, 82167 objects > > 2018/01/07 23:45:29 main.go:125: INFO: Opening Socket for Docker to connect: > /run/docker/plugins/rbd.sock > 2018/01/07 23:46:56 api.go:188: Entering go-plugins-helpers getPath > 2018/01/07 23:46:56 driver.go:467: WARN: Image dummy02 does not exist > 2018/01/07 23:46:56 api.go:132: Entering go-plugins-helpers createPath > 2018/01/07 23:46:56 driver.go:145: INFO: API Create(&{"dummy02" map[]}) > 2018/01/07 23:46:56 driver.go:153: INFO: createImage(&{"dummy02" map[]}) > 2018/01/07 23:46:56 driver.go:687: INFO: Attempting to create new RBD Image: > (rbd/dummy02, %!s(int=20480), xfs) > 2018/01/07 23:46:56 driver.go:203: ERROR: Unable to create Ceph RBD > Image(dummy02): exit status 2 > ``` > > - docker log entries: > > > ``` > Jan 7 23:42:03 lol-server-045 kernel: [4063726.059726] aufs > au_opts_verify:1597:dockerd[107149]: dirperm1 breaks the protection by the > permission bits on the lower branch > Jan 7 23:42:30 lol-server-045 kernel: [4063752.624828] aufs > au_opts_verify:1597:dockerd[107147]: dirperm1 breaks the protection by the > permission bits on the lower branch > Jan 7 23:45:20 lol-server-045 rbd-docker-plugin[77813]: 2018/01/07 23:45:20 > main.go:179: INFO: setting log file: /var/log/rbd-docker-plugin.log > Jan 7 23:45:29 lol-server-045 rbd-docker-plugin[77856]: 2018/01/07 23:45:29 > main.go:179: INFO: setting log file: /var/log/rbd-docker-plugin.log > Jan 7 23:46:56 lol-server-045 kernel: [4064019.169722] aufs > au_opts_verify:1597:dockerd[107449]: dirperm1 breaks the protection by the > permission bits on the lower branch > Jan 7 23:46:56 lol-server-045 dockerd[107120]: > time="2018-01-07T23:46:56.857163090+08:00" level=error msg="Handler for POST > /v1.29/containers/create returned error: create dummy02: > VolumeDriver.Create: Unable to create Ceph RBD Image(dummy02): exit status > 2" > ``` > > - state of the ceph cluster: > > ``` > root@lol-server-045:/var/log# ceph -s > cluster 0bb54801-846d-47ac-b14a-3828d830ff3a > health HEALTH_OK > monmap e1: 1 mons at {lol-server-045=10.0.0.20:6789/0} > election epoch 6, quorum 0 lol-server-045 > fsmap e11: 1/1/1 up {0=lol-server-050=up:active} > osdmap e64: 5 osds: 5 up, 5 in > flags sortbitwise,require_jewel_osds > pgmap v1232770: 192 pgs, 3 pools, 14067 MB data, 82167 objects > 28396 MB used, 7623 GB / 7651 GB avail > 192 active+clean > ``` > > Many thanks in advance for any help! > > Traiano > > > > > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Jason _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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