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Improve godoc for goroutinemap
Improves the godoc of goroutinemap; found while preparing to use this type in another PR.
@saad-ali
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Fixed integer overflow bug in rate limiter.
```release-note
Fix overflow issue in controller-manager rate limiter
```
This PR fixes a bug in the delayed work-queue used by some controllers.
The integer overflow bug would previously cause hotlooping behavior after a few failures
as `time.Duration(..)` on values larger than MaxInt64 behaves unpredictably, and
after a certain value returns 0 always.
cc @bprashanth @pwittrock
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Revert revert 30090 with fix
This reverts #31297 (which originally reverted #30090) and applies a fix to stop the fd leak that was exposed by #30090.
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Avoid sorting lists when unnecessary
I've seen ThreadSafeMap::List consuming ~30% of whole CPU usage, spending the whole time in sorting (while it is in fact completely unneded).
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Add kubelet --network-plugin-mtu flag for MTU selection
* Add network-plugin-mtu option which lets us pass down a MTU to a network provider (currently processed by kubenet)
* Add a test, and thus make sysctl testable
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[Kubelet] Optionally consume configuration from <node-name> named config maps
This extends the Kubelet to check the API server for new node-specific config, and exit when it finds said new config.
/cc @kubernetes/sig-node @mikedanese @timstclair @vishh
**Release note**:
```
Extends Kubelet with Alpha Dynamic Kubelet Configuration. Please note that this alpha feature does not currently work with cloud provider auto-detection.
```
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Unset https_proxy before roundtripper_test
When running `hack/test-go.sh`, if the testing env is behind a https proxy, roundtripper_test will fail randomly.
After `unset https_proxy`, the testing works well. So, add a comment to be a troubleshooting tip.
Fail info:
```
--- FAIL: TestRoundTripAndNewConnection (0.12s)
roundtripper_test.go:319: proxied http->http: shouldError=false, got true: Get http://127.0.0.1:46711: unexpected EOF
FAIL
FAIL k8s.io/kubernetes/pkg/util/httpstream/spdy 0.148s
```
```
--- FAIL: TestRoundTripAndNewConnection (0.12s)
roundtripper_test.go:319: proxied https with auth (valid hostname + RootCAs) -> http: shouldError=false, got true: Get http://127.0.0.1:41028: unexpected EOF
FAIL
FAIL k8s.io/kubernetes/pkg/util/httpstream/spdy 0.146s
```
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Make 'allAlpha' a special feature gate
Rather than making all caller check both allAlpha and their own flag, make `allAlpha` set all of the alpha gates explicitly.
This is hard to test because of the globalness. I will follow this commit with a new one to add some way to test, but I wanted to float this design
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Implement TLS bootstrap for kubelet using `--experimental-bootstrap-kubeconfig` (2nd take)
Ref kubernetes/features#43 (comment)
cc @gtank @philips @mikedanese @aaronlevy @liggitt @deads2k @errordeveloper @justinsb
Continue on the older PR https://github.com/kubernetes/kubernetes/pull/30094 as there are too many comments on that one and it's not loadable now.
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Fixes#30886
This PR fixes https://github.com/kubernetes/kubernetes/issues/30886
```
make WHAT=pkg/kubelet
+++ [0818 17:03:21] Generating bindata:
/Users/jscheuermann/inovex/workspace/kubernetes-clone/test/e2e/framework/gobindata_util.go
+++ [0818 17:03:22] Building the toolchain targets:
k8s.io/kubernetes/hack/cmd/teststale
+++ [0818 17:03:22] Building go targets for darwin/amd64:
pkg/kubelet
```
Add --bootstrap-kubeconfig flag to kubelet. If the flag is non-empty
and --kubeconfig doesn't exist, then the kubelet will use the bootstrap
kubeconfig to create rest client and generate certificate signing request
to request a client cert from API server.
Once succeeds, the result cert will be written down to
--cert-dir/kubelet-client.crt, and the kubeconfig will be populated with
certfile, keyfile path pointing to the result certificate file, key file.
(The key file is generated before creating the CSR).
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Add annotations to the PodSecurityPolicy Provider interface
@pweil- is this what you were thinking in terms of API changes? I really like to avoid functions with more than 2 return values, but couldn't think of a cleaner approach in this case.
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use Reader.ReadLine instead of bufio.Scanner to support bigger yaml
@smarterclayton ptal. Also refer #19603#23125 for more details.
