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45 Commits (214c916045ec88450458b6a5741bea5b936bfcdc)

Author SHA1 Message Date
Jing Xu f19a1148db This change supports robust kubelet volume cleanup 
Currently kubelet volume management works on the concept of desired
and actual world of states. The volume manager periodically compares the
two worlds and perform volume mount/unmount and/or attach/detach
operations. When kubelet restarts, the cache of those two worlds are
gone. Although desired world can be recovered through apiserver, actual
world can not be recovered which may cause some volumes cannot be cleaned
up if their information is deleted by apiserver. This change adds the
reconstruction of the actual world by reading the pod directories from
disk. The reconstructed volume information is added to both desired
world and actual world if it cannot be found in either world. The rest
logic would be as same as before, desired world populator may clean up
the volume entry if it is no longer in apiserver, and then volume
manager should invoke unmount to clean it up.
 2016-08-15 11:29:15 -07:00
Harry Zhang c495397cae Refactor uuid into its own pkg 2016-07-30 00:07:02 -04:00
David McMahon ef0c9f0c5b Remove "All rights reserved" from all the headers. 2016-06-29 17:47:36 -07:00
saadali 542f2dc708 Introduce new kubelet volume manager 
This commit adds a new volume manager in kubelet that synchronizes
volume mount/unmount (and attach/detach, if attach/detach controller
is not enabled).

This eliminates the race conditions between the pod creation loop
and the orphaned volumes loops. It also removes the unmount/detach
from the `syncPod()` path so volume clean up never blocks the
`syncPod` loop.
 2016-06-15 09:34:08 -07:00
saadali 9b6a505f8a Rename UniqueDeviceName to UniqueVolumeName 
Rename UniqueDeviceName to UniqueVolumeName and move helper functions
from attacherdetacher to volumehelper package.
Introduce UniquePodName alias
 2016-06-15 09:32:12 -07:00
Jan Safranek 0ee9160f88 volume recycler: Don't start a new recycler pod if one already exists. 
Recycling is a long duration process and when the recycler controller is
restarted in the meantime, it should not start a new recycler pod if there is
one already running.

This means that the recycler pod must have deterministic name based on name
of the recycled PV, we then get name conflicts when creating the pod.

Two things need to be changed:
- recycler controller and recycler plugins must pass the PV.Name to place,
  where the pod is created.

- create recycler pod with deterministic name and check "already exists" error.

When at it, remove useless 'resourceVersion' argument and make log messages
starting with lowercase.
 2016-05-19 12:58:25 +02:00
Jan Safranek 75b0e2ad63 provisioning: Refactor volume plugins. 
NewPersistentVolumeTemplate() and Provision() are merged into one call.
 2016-05-18 10:06:51 +02:00
saadali 79012f6d53 Rename volume.Builder to Mounter and volume.Cleaner to Unmounter 2016-03-25 11:29:58 -07:00
Vishnu kannan 9e5ddcb822 Do not track resource usage for host path volumes. They can contain loops. 
Signed-off-by: Vishnu kannan <vishnuk@google.com>
 2016-03-24 12:05:08 -07:00
Sami Wagiaalla 7767698459 Remove SupportsOwnershipManagement volume attribute 2016-01-13 10:37:10 -05:00
Sami Wagiaalla f650648aae Add fsGroup to SetUp and SetUpAt 2016-01-13 10:37:10 -05:00
Chakravarthy Nelluri fa76de79e5 Add support for flex volume. Flex volume adds support for thirdparty(vendor) 
volumes and custom mounts.
 2015-12-23 14:11:38 -08:00
markturansky 4fc1bf1f23 Added PersistentVolumeController 2015-12-11 10:33:30 -05:00
Phillip Wittrock c67ce887f2 Volume Metrics Interface and base implementation. 
- Add volume.MetricsProvider function to Volume interface.
- Add volume.MetricsDu for providing metrics via executing "du".
- Add volulme.MetricsNil for unsupported Volumes.
 2015-12-09 16:06:24 -08:00
Paul Morie 911757486d Refactor volume.Builder.IsReadOnly() to volume.Builder.GetAttributes() 2015-11-13 23:34:48 -05:00
Sami Wagiaalla 1d352a16b8 Support volume relabling for pods which specify an SELinux label 2015-10-28 09:26:58 -04:00
Paul Morie 3cd12f5e05 FSGroup implementation 2015-10-22 16:40:59 -04:00
markturansky a1692e06e6 added pv attrs to volumeOptions, improved tests 2015-09-18 13:14:56 -04:00
markturansky 3bed0a2b5c Added volume.Creater interface and simple HostPath implementation 2015-09-18 13:14:56 -04:00
k8s-merge-robot c1eb1a1b2f Merge pull request #13791 from fgrzadkowski/fix_secrets_in_docker 
Auto commit by PR queue bot
 2015-09-17 15:13:29 -07:00
markturansky c2de9e9647 Added volume.Deleter interface and simple HostPath implementation 2015-09-17 12:08:58 -04:00
Filip Grzadkowski 7fe34f2050 Introduce nsenter writer for volume plugins 2015-09-17 16:40:29 +02:00
markturansky 7bc55b5aea configurable pv recyclers 2015-09-15 12:48:25 -04:00
markturansky 0e7f73ad67 expand volume.Spec to include full Volume and PV 2015-09-03 08:57:32 -04:00
markturansky 68358fd308 Added VolumeConfig to volumes 2015-09-01 12:04:26 -04:00
Kris Rousey 565189f5b8 Correcting all go vet errors 2015-08-11 13:55:37 -07:00
Mike Danese 8e33cbfa28 rewrite go imports 2015-08-05 17:30:03 -07:00
Brendan Burns 63cf00d24f Merge pull request #10424 from markturansky/readonly_fix 
Auto commit by PR queue bot
 2015-07-29 14:25:44 -07:00
Mike Danese f40b970bd9 Merge pull request #11987 from markturansky/recyc_fix 
Fixed newRecycler func for HostPath & NFS
 2015-07-29 13:11:08 -07:00
markturansky e8289ceb9d rebased and updated 2015-07-29 14:48:06 -04:00
markturansky 63ccfa2beb Added unit tests for each PV using IsReadOnly 2015-07-29 14:38:40 -04:00
markturansky fae6759490 IsReadOnly bool on builder 2015-07-29 14:35:37 -04:00
markturansky 649374ddb4 fixed newRecycler func for HostPath & NFS 2015-07-29 14:13:05 -04:00
jiangyaoguo 63560f385c refector host_path volume to seperate builder and cleaner 2015-07-20 17:23:04 +08:00
markturansky 39c5152e2c fixed pv recycler timeout precision 2015-06-20 00:34:29 -04:00
markturansky cfc08c4fdf Changed busybox img to official gcr.io image 2015-06-16 16:15:19 -04:00
markturansky 986cbb56d4 Recycling HostPath and NFS impls 2015-06-04 15:46:03 -04:00
Tim Hockin f66ca25d9f Rename AccessMode to PersistentVolumeAccessMode 2015-05-18 17:21:30 -07:00
Paul Morie cd359ffa73 Refactor volume interfaces to receive pod instead of ObjectReference 2015-05-10 20:12:57 -04:00
Paul Morie b538642464 Inject mounter into volume plugins 2015-05-04 11:28:57 -04:00
Eric Paris 6b3a6e6b98 Make copyright ownership statement generic 
Instead of saying "Google Inc." (which is not always correct) say "The
Kubernetes Authors", which is generic.
 2015-05-01 17:49:56 -04:00
markturansky e1481fb9c2 Refactored Volume plugins to use InternalVolume instead of API types 2015-04-14 14:25:01 -04:00
Paul Morie c98e89fca0 Set rootcontext of emptyDir tmpfs mounts correctly 2015-04-13 12:50:36 -04:00
markturansky 111f3d5120 Add GetAccessModes to volume plugin interface 2015-03-24 16:02:39 -04:00
Tim Hockin bfadae77e0 Promote volume plugins, prep for persistent vols 
Move pkg/kubelet/volume/... to pkg/volume/...
Some renames to make the soon-to-come persistent volumes work clearer.
 2015-03-20 13:49:40 -07:00