47320fd3f0
Automatic merge from submit-queue GC: Fix re-adoption race when orphaning dependents. **What this PR does / why we need it**: The GC expects that once it sees a controller with a non-nil DeletionTimestamp, that controller will not attempt any adoption. There was a known race condition that could cause a controller to re-adopt something orphaned by the GC, because the controller is using a cached value of its own spec from before DeletionTimestamp was set. This fixes that race by doing an uncached quorum read of the controller spec just before the first adoption attempt. It's important that this read occurs after listing potential orphans. Note that this uncached read is skipped if no adoptions are attempted (i.e. at steady state). **Which issue this PR fixes**: Fixes #42639 **Special notes for your reviewer**: **Release note**: ```release-note ``` cc @kubernetes/sig-apps-pr-reviews |
||
|---|---|---|
| .github | ||
| Godeps | ||
| api | ||
| build | ||
| cluster | ||
| cmd | ||
| docs | ||
| examples | ||
| federation | ||
| hack | ||
| hooks | ||
| logo | ||
| pkg | ||
| plugin | ||
| staging | ||
| test | ||
| third_party | ||
| translations | ||
| vendor | ||
| .bazelrc | ||
| .gazelcfg.json | ||
| .generated_files | ||
| .gitattributes | ||
| .gitignore | ||
| BUILD.bazel | ||
| CHANGELOG.md | ||
| CONTRIBUTING.md | ||
| LICENSE | ||
| Makefile | ||
| Makefile.generated_files | ||
| OWNERS | ||
| OWNERS_ALIASES | ||
| README.md | ||
| Vagrantfile | ||
| WORKSPACE | ||
| code-of-conduct.md | ||
| labels.yaml | ||
README.md
Kubernetes
Kubernetes is an open source system for managing containerized applications across multiple hosts, providing basic mechanisms for deployment, maintenance, and scaling of applications.
Kubernetes builds upon a decade and a half of experience at Google running production workloads at scale using a system called Borg, combined with best-of-breed ideas and practices from the community.
Kubernetes is hosted by the Cloud Native Computing Foundation (CNCF). If you are a company that wants to help shape the evolution of technologies that are container-packaged, dynamically-scheduled and microservices-oriented, consider joining the CNCF. For details about who's involved and how Kubernetes plays a role, read the CNCF announcement.
To start using Kubernetes
See our documentation on kubernetes.io.
Try our interactive tutorial.
Take a free course on Scalable Microservices with Kubernetes.
To start developing Kubernetes
The community repository hosts all information about building Kubernetes from source, how to contribute code and documentation, who to contact about what, etc.
If you want to build Kubernetes right away there are two options:
You have a working Go environment.
$ go get -d k8s.io/kubernetes
$ cd $GOPATH/src/k8s.io/kubernetes
$ make
You have a working Docker environment.
$ git clone https://github.com/kubernetes/kubernetes
$ cd kubernetes
$ make quick-release
If you are less impatient, head over to the developer's documentation.
Support
If you need support, start with the troubleshooting guide and work your way through the process that we've outlined.
That said, if you have questions, reach out to us one way or another.