Make the generic webhook admission controller use the dynamic webhook config manager #46808
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| /* | ||
| Copyright 2017 The Kubernetes Authors. | ||
|
|
||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
|
|
||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
|
|
||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package configuration | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "math" | ||
| "sync" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "k8s.io/apimachinery/pkg/runtime" | ||
| "k8s.io/apimachinery/pkg/util/wait" | ||
| ) | ||
|
|
||
| func TestTolerateBootstrapFailure(t *testing.T) { | ||
|
|
||
| var fakeGetSucceed bool | ||
| var fakeGetSucceedLock sync.RWMutex | ||
| fakeGetFn := func() (runtime.Object, error) { | ||
| fakeGetSucceedLock.RLock() | ||
| defer fakeGetSucceedLock.RUnlock() | ||
| if fakeGetSucceed { | ||
| return nil, nil | ||
| } else { | ||
| return nil, fmt.Errorf("this error shouldn't be exposed to caller") | ||
| } | ||
| } | ||
| poller := newPoller(fakeGetFn) | ||
| poller.bootstrapGracePeriod = 100 * time.Second | ||
| poller.bootstrapRetries = math.MaxInt32 | ||
| // set failureThreshold to 0 so that one single failure will set "ready" to false. | ||
| poller.failureThreshold = 0 | ||
| stopCh := make(chan struct{}) | ||
| defer close(stopCh) | ||
| go poller.Run(stopCh) | ||
| go func() { | ||
| // The test might have false negative, but won't be flaky | ||
| timer := time.NewTimer(2 * time.Second) | ||
| <-timer.C | ||
| fakeGetSucceedLock.Lock() | ||
| defer fakeGetSucceedLock.Unlock() | ||
| fakeGetSucceed = true | ||
| }() | ||
|
|
||
| done := make(chan struct{}) | ||
| go func(t *testing.T) { | ||
| _, err := poller.configuration() | ||
| if err != nil { | ||
| t.Errorf("unexpected error: %v", err) | ||
| } | ||
| close(done) | ||
| }(t) | ||
| <-done | ||
| } | ||
|
|
||
| func TestNotTolerateNonbootstrapFailure(t *testing.T) { | ||
| fakeGetFn := func() (runtime.Object, error) { | ||
| return nil, fmt.Errorf("this error should be exposed to caller") | ||
| } | ||
| poller := newPoller(fakeGetFn) | ||
| poller.bootstrapGracePeriod = 1 * time.Second | ||
| poller.interval = 1 * time.Millisecond | ||
| stopCh := make(chan struct{}) | ||
| defer close(stopCh) | ||
| go poller.Run(stopCh) | ||
| // to kick the bootstrap timer | ||
| go poller.configuration() | ||
|
|
||
| wait.PollInfinite(1*time.Second, func() (bool, error) { | ||
| poller.lock.Lock() | ||
| defer poller.lock.Unlock() | ||
| return poller.bootstrapped, nil | ||
| }) | ||
|
|
||
| _, err := poller.configuration() | ||
| if err == nil { | ||
| t.Errorf("unexpected no error") | ||
| } | ||
| } | ||
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
@smarterclayton how's this version? (ignore the unit tests, i'll update them if the implementation is right)
Also, in your previous comments, when you said "smeared out", do you mean "spread out"?
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
@smarterclayton could you take another look? If bootstrap==false at the time configuration() is called, configuration() retries 5 times. Thanks.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
Yeah, looks ok to me