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Reorganize volume controllers and manager
* Move both PV and attach/detach volume controllers to `controllers/volume` (closes#26222)
* Rename `kubelet/volume` to `kubelet/volumemanager`
* Add/update OWNER files
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TLS bootstrap API group (alpha)
This PR only covers the new types and related client/storage code- the vast majority of the line count is codegen. The implementation differs slightly from the current proposal document based on discussions in design thread (#20439). The controller logic and kubelet support mentioned in the proposal are forthcoming in separate requests.
I submit that #18762 ("Creating a new API group is really hard") is, if anything, understating it. I've tried to structure the commits to illustrate the process.
@mikedanese @erictune @smarterclayton @deads2k
```release-note-experimental
An alpha implementation of the the TLS bootstrap API described in docs/proposals/kubelet-tls-bootstrap.md.
```
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Add EndpointReconcilerConfig to master Config
Add EndpointReconcilerConfig to master Config to allow downstream integrators to customize the reconciler and reconciliation interval when starting a customized master
@kubernetes/sig-api-machinery @deads2k @smarterclayton @liggitt @kubernetes/rh-cluster-infra
Add EndpointReconcilerConfig to master Config to allow downstream integrators to customize the reconciler
and reconciliation interval when starting a customized master.
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Add integration test for binding PVs using label selectors
Adds an integration test for persistent volume claim 'MatchExpressions' label selector.
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Reapply ScheduledJob tests (2ab885a53a)
Re-applied the ScheduledJob tests (#25737) which were reverted due to an integration test error in #27184.
The problem was in `TestBatchGroupBackwardCompatibility` which is testing backwards compatibility for storing jobs (`extensions/v1beta1` vs `batch/v1`), which is not needed for `batch/v2alpha1`. I've added a skip to aforementioned test for that group. See `test/integration/master_test.go` for the actual fix.
@caesarxuchao @mikedanese ptal
@piosz @jszczepkowski @erictune fyi
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Add possibility to run integration tests in parallel
- add env. variable with etcd URL to intergration tests
- update documentation with example how to use it to find flakes
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Add integration test for binding PVs using label selectors
Adds an integration test for persistent volume claim label selector.
Many integration tests delete all keys in etcd as part of their cleanup.
To run these tests in parallel we must run several etcd daemons, each on
different port and pass etcd url to the test suite.
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add unit and integration tests for rbac authorizer
This PR adds lots of tests for the RBAC authorizer.
The plan over the next couple days is to add a lot more test cases.
Updates #23396
cc @erictune
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Add integration test for provisioning/deleting many PVs.
The test is configurable by KUBE_INTEGRATION_PV_OBJECTS for load tests, 100 objects are created by default.
@kubernetes/sig-storage
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.
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volume integration: wait for PVs before creating PVCs
The test should wait until all volumes are processed by volume controller (i.e. in the controller cache) before creating a PVC.
Without that, the "best" matching PV could not be in the cache and controller might bind the PVC to suboptiomal one.
This fixes integration test flake "Bind mismatch! Expected pvc-2 capacity 50000000000 but got pvc-2 capacity 52000000000".
Fixes#27179 (together with #26894)
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Fix integration pv flakes
There are two fixes in this PR:
- run tests in separarate functions and use objects with different names, otherwise events from the beginning of the function are caught later when we watch for events of a different PV/PVC
- don't set PV.Spec.ClaimRef.UID of pre-bound PVs. PVs with UID set are considered as bound and they are deleted/recycled when appropriate PVC does not exists yet.
Fixes#26730 and probably also ~~#26894~~ #26256
The test should wait until all volumes are processed by volume controller (i.e.
in the controller cache) before creating a PVC.
Without that, the "best" matching PV could not be in the cache and controller
might bind the PVC to suboptiomal one.
This fixes integration test flake "Bind mismatch! Expected pvc-2 capacity
50000000000 but got pvc-2 capacity 52000000000".
