Wait for specific final state instead of waiting for specific number of
operations in volume unit tests. The tests are more readable and will survive
random goroutine ordering (PV and PVC controller have both their own
goroutine).
Automatic merge from submit-queue
allow lock acquisition injection for quota admission
Allows for custom lock acquisition when composing the quota admission controller.
@derekwaynecarr I'm still experimenting to make sure this satisfies the need downstream, but looking for agreement in principle
Changes:
* moved waiting for synced caches before starting any work
* refactored worker() to really quit on quit
* changed queue to a ratelimiting queue and added retries on errors
* deep-copy deployments before mutating - we still need to deep-copy
replica sets and pods
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Move deployment functions to deployment/util.go not widely used
If the function is not used in multiple areas, move it to deployment/util.go
fixes#26750
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Some scheduler optimizations
Ref #28590
This PR doesn't do anything fancy - it is just reducing amount of memory allocations in scheduler, which in turn significantly speeds up scheduler.
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allow handler to join after the informer has started
This allows an event handler to join after a SharedInformer has started. It can't add any indexes, but it can add its reaction functions.
This works by
1. stopping the flow of events from the reflector (thus stopping updates to our store)
1. registering the new handler
1. sending synthetic "add" events to the new handler only
1. unblocking the flow of events
It would be possible to
1. block
1. list
1. add recorder
1. unblock
1. play list to as-yet unregistered handler
1. block
1. remove recorder
1. play recording
1. add new handler
1. unblock
But that is considerably more complicated. I'd rather not start there since this ought to be the exception rather than the rule.
@wojtek-t who requested this power in the initial review
@smarterclayton @liggitt I think this resolves our all-in-one ordering problem.
@hongchaodeng since this came up on the call
* rolling.go (has all the logic for rolling deployments)
* recreate.go (has all the logic for recreate deployments)
* sync.go (has all the logic for getting and scaling replica sets)
* rollback.go (has all the logic for rolling back a deployment)
* util.go (contains all the utilities used throughout the controller)
Leave back at deployment_controller.go all the necessary bits for
creating, setting up, and running the controller loop.
Also add package documentation.
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Use `CreatedByAnnotation` constant
A nit but didn't want the strings to get out of sync.
Signed-off-by: Doug Davis <dug@us.ibm.com>
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Track object modifications in fake clientset
Fake clientset is used by unit tests extensively but it has some
shortcomings:
- no filtering on namespace and name: tests that want to test objects in
multiple namespaces end up getting all objects from this clientset,
as it doesn't perform any filtering based on name and namespace;
- updates and deletes don't modify the clientset state, so some tests
can get unexpected results if they modify/delete objects using the
clientset;
- it's possible to insert multiple objects with the same
kind/name/namespace, this leads to confusing behavior, as retrieval is
based on the insertion order, but anchors on the last added object as
long as no more objects are added.
This change changes core.ObjectRetriever implementation to track object
adds, updates and deletes.
Some unit tests were depending on the previous (and somewhat incorrect)
behavior. These are fixed in the following few commits.
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Kubelet should mark VolumeInUse before checking if it is Attached
Kubelet should mark VolumeInUse before checking if it is Attached.
Controller should fetch fresh copy of node object before detach instead of relying on node informer cache.
Fixes#27836
Ensure that kublet marks VolumeInUse before checking if it is Attached.
Also ensures that the attach/detach controller always fetches a fresh
copy of the node object before detach (instead ofKubelet relying on node
informer cache).
Using new fake clientset registry exposes the actual flow on pending
namespace finalization: get namespace, create finalizer, list pods and
delete namespace if there are no pods.
Since fake clientset now correctly tracks objects created by deployment
controller, it triggers different controller behavior: controller only
creates replica set once and updates deployment once.
Fake clientset no longer needs to be prepopulated with records: keeping
them in leads to the name conflict on creates. Also, since fake
clientset now respects namespaces, we need to correctly populate them.
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Convert service account token controller to use a work queue
Converts the service account token controller to use a work queue. This allows parallelization of token generation (useful when there are several simultaneous namespaces or service accounts being created). It also lets us requeue failures to be retried sooned than the next sync period (which can be very long).
Fixes an issue seen when a namespace is created with secrets quotaed, and the token controller tries to create a token secret prior to the quota status having been initialized. In that case, the secret is rejected at admission, and the token controller wasn't retrying until the resync period.
Automatic merge from submit-queue
Fix initialization of volume controller caches.
Fix `PersistentVolumeController.initializeCaches()` to pass pointers to volume or claim to `storeObjectUpdate()` and add extra functions to enforce that the right types are checked in the future.
Fixes#28076
Fix PersistentVolumeController.initializeCaches() to pass pointers to volume
or claim to storeObjectUpdate() and add extra functions to enforce that the
right types are checked in the future.
Fixes#28076
