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121 Commits

Author SHA1 Message Date
Jan Safranek
c7da3abd5b volume controller: Speed up binding by not sorting volumes 
The binder sorts all available volumes first, then it filters out volumes
that cannot be bound by processing each volume in a loop and then finds
the smallest matching volume by binary search.

So, if we process every available volume in a loop, we can also remember the
smallest matching one and save us potentially long sorting (and quick binary
search).
 2016-05-20 12:26:39 +02:00
Jan Safranek
01b20d8e77 Generate shorter provisioned PV names. 
GCE PD names are generated out of provisioned PV.Name, therefore it should be
as short as possible and still unique.
 2016-05-18 10:06:51 +02:00
Jan Safranek
79b91b9ee0 Refactor persistent volume initialization 
There should be only one initialization function, shared by the real
controller and unit tests.
 2016-05-18 10:06:51 +02:00
Jan Safranek
7f549511e2 Big move and rename 
- remove persistentvolume_ prefix from all files
- split controller.go into controller.go and controller_base.go (to have them
  under 1500 lines for github)
 2016-05-18 10:06:51 +02:00
Jan Safranek
c5fe1f943c Fixed binder logging 
- we need the original volume/claim in error paths
- don't report version conflicts as errors (they happen pretty often and we
  recover from them)
 2016-05-18 10:06:51 +02:00
Jan Safranek
41adcc5496 Speed up binding of provisioned volumes 
This fixes e2e test for provisioning - it expects that provisioned volumes
are bound quickly.

Majority of this patch is update of test framework needs to initialize the
controller appropriately.
 2016-05-18 10:06:51 +02:00
Jan Safranek
c6f05c8056 provisioning: Add unit testso for provisioning errors. 2016-05-18 10:06:51 +02:00
Jan Safranek
c24b33793c unit test: Add possibility to inject kubeclient errors. 2016-05-18 10:06:51 +02:00
Jan Safranek
92dc159ab6 Delete provisioned volumes that are not needed. 
We should delete volumes that are provisioned for a claim and the claim
gets bound to different volume during the provisioning.
 2016-05-18 10:06:51 +02:00
Jan Safranek
9fb0f7a3fd provisioning: Unit tests 2016-05-18 10:06:51 +02:00
Jan Safranek
514d595881 provisioning: Implement provisioner 2016-05-18 10:06:51 +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
Jan Safranek
dd7890c362 delete: Implement Deleter 2016-05-18 10:06:51 +02:00
Jan Safranek
22e68d4622 recycler: unit tests 
- Add reclaim policy to newVolume() call.
- Implement reactor Volumes().Get().
- Implement mock volume plugin.
- Add recycler tests.
- Add a synchronization condition to controller.scheduleOperation
  - we need to pause the controller here, let the test to do some bad things
    to the controller and test error cases in recycleVolumeOperation.

Test framework gets more and more complicated... But this is the last piece,
I promise.
 2016-05-18 10:06:24 +02:00
Jan Safranek
a08d826ca5 Make a separate functions to emit events and change status. 
These two seem to be always used together.
 2016-05-18 10:06:24 +02:00
Jan Safranek
1feb346830 recycler: implement recycler 
Also update the old unit test to pass. New unit tests will be added in
subsequent commit.
 2016-05-18 10:06:24 +02:00
Jan Safranek
56cae2dc20 unit test framework: Wait for all running operations to finish during all tests. 2016-05-18 10:06:24 +02:00
Jan Safranek
cf68370371 recycler: Maintain a list of long-running operations. 
We need to keep list of running recyclers, deleters and provisioners in
memory in order not to start a new recycling/deleting/provisioning twice
for the same volume/claim.

This will be eventually replaced by GoRoutineMap from PR #24838.
 2016-05-18 10:06:24 +02:00
Jan Safranek
4e47f69cba recycler: Implement volume host interfaces. 
We need the controller to implement volume.VolumeHost interface to be able
to call recycle plugins.
 2016-05-18 10:06:24 +02:00
Jan Safranek
a17f0d5949 Move release logic to standalone function. 2016-05-18 10:06:23 +02:00
Jan Safranek
7b73384fda Add controller method tests. 2016-05-18 10:05:14 +02:00
Jan Safranek
af295719f6 Add events. 2016-05-17 15:14:11 +02:00
Jan Safranek
61019b2401 Process deleted PVs 
To speed up marking claims as "lost".
 2016-05-17 15:14:10 +02:00
Jan Safranek
50b61ae168 Add "multi-sync" tests. 
These test will call syncVolume/syncClaim until they reach consistent state.
 2016-05-17 15:14:09 +02:00
Jan Safranek
f4f252e81c Implement syncVolume. 2016-05-17 15:14:08 +02:00
Jan Safranek
5949b956f5 Implement syncClaim with bound claims. 2016-05-17 15:14:06 +02:00
Jan Safranek
eff6b50b93 Bind unbound claims in syncClaim. 2016-05-17 15:14:06 +02:00
Jan Safranek
e620bfc9cc Add unit test framework. 
It's quite complicated one, see subsequent commits for usage.
 2016-05-17 15:14:05 +02:00
Jan Safranek
a195802d3e Make standalone function to check for (pre-)bound volumes. 
Note the semantic change, we now check for UID=""
 2016-05-17 15:14:04 +02:00
Jan Safranek
20305f9235 Don't process events until fully initialized. 
We do not want to process any volume / claim events until both PV and claim
caches are fully loaded.
 2016-05-17 15:14:03 +02:00
Jan Safranek
71aa892a86 Implement volume controller skeleton. 
This is a simple controller that watches changes of PersistentVolumes and
PersistentVolumeClaims.
 2016-05-17 15:14:02 +02:00
Jan Safranek
b86e5923b2 Rename types.go to persistentvolume_index.go 
With some changes:
- make some method private, nobody seems to use them.
- adapt to framework.NewIndexerInformer instead of using custom cache.
 2016-05-17 15:14:01 +02:00
Jan Safranek
6fa527a460 Remove all three PersistentVolume controllers. 
We will add new ones gradually in smaller chunks.
 2016-05-10 17:57:54 +02:00
Prashanth Balasubramanian
6bc3052551 PetSet alpha controller 2016-05-04 18:39:17 -07:00
gmarek
3171aac57c Generated clients can return their RESTClients, RESTClient can return its RateLimiter 2016-04-27 22:15:10 +02:00
Sami Wagiaalla
99744df6ee Add loging to the recently recycled PV section 2016-04-04 10:07:03 -04:00
Andy Goldstein
5ce2e6d576 Check claimRef UID when processing a recycled PV, take 2 
Reorder code a bit so it doesn't allow a case where you get some error other than "not found"
combined with a non-nil Claim.

Add test case.
 2016-03-28 15:25:17 -04:00
saadali
79012f6d53 Rename volume.Builder to Mounter and volume.Cleaner to Unmounter 2016-03-25 11:29:58 -07:00
Sami Wagiaalla
b77abe56a2 Check claimRef UID when processing a recycled PV 2016-03-16 17:00:05 -04:00
Jordan Liggitt
d008283942 Tolerate multiple registered versions in a single group 2016-03-12 12:49:41 -05:00
k8s-merge-robot
d81d823ca5 Merge pull request #22393 from eparis/blunderbuss 
Auto commit by PR queue bot
 2016-03-02 18:51:56 -08:00
Eric Paris
5e5a823294 Move blunderbuss assignees into tree 2016-03-02 20:46:32 -05:00
Tim St. Clair
246b389275 Move test-only volume files to test-only volume package 2016-02-29 14:44:28 -08:00
k8s-merge-robot
a52eb5d433 Merge pull request #21268 from jsafrane/devel/recycle-provisioned 
Auto commit by PR queue bot
 2016-02-20 15:26:28 -08:00
k8s-merge-robot
eb45154996 Merge pull request #21348 from caesarxuchao/generate-fake-for-1-2 
Auto commit by PR queue bot
 2016-02-18 23:02:05 -08:00
Chao Xu
ad46715f51 generate fake client for release_1_2 2016-02-17 16:10:02 -08:00
laushinka
7ef585be22 Spelling fixes inspired by github.com/client9/misspell 2016-02-18 06:58:05 +07:00
Jan Safranek
6088369227 Delete provisioned volumes without claim. 
There is a race in dynamic provisioning:

1. User creates a claim to dynamically provision a volume.
2. Kubernetes start provisioning the volume.
3. User deletes the claim before 2. is finished.
4. Kubernetes finished provisioning the volume.

The volume is in Pending state. This volume should be deleted instead of
moving to Available state.
 2016-02-15 16:38:35 +01:00
k8s-merge-robot
315a509340 Merge pull request #20900 from jsafrane/devel/volume-names 
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 2016-02-13 17:58:29 -08:00
k8s-merge-robot
ad7ed67904 Merge pull request #20213 from jsafrane/devel/pv-reload 
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 2016-02-12 06:49:29 -08:00