80d21e5929
The node-controllers has 2 reconcilation methods:
- workqueue with workers, is using during bootstrap and process
nodes until the cloud provider taint is removed
- periodic loop, that runs every certain period polling the cloud
provider to get the instances metadata to update the node addresses,
since nodes can Update its addresses anytime during its lifecycle.
These follows up on the parallelization of the node-controller, that
previously increased the number of workers that handle the bootstrap.
This parallelize the periodic loop based on the input value of the
number of workers, and also uses the informer lister instead of doing
a new List to the apiserver.
Added an unit test that can used to evaluate the performance improvement
with different workers values:
=== RUN TestUpdateNodeStatus/single_thread
node_controller_test.go:2537: 1 workers: processed 100 nodes int 1.055595262s
=== RUN TestUpdateNodeStatus/5_workers
node_controller_test.go:2537: 5 workers: processed 100 nodes int 216.990972ms
=== RUN TestUpdateNodeStatus/10_workers
node_controller_test.go:2537: 10 workers: processed 100 nodes int 112.422435ms
=== RUN TestUpdateNodeStatus/30_workers
node_controller_test.go:2537: 30 workers: processed 100 nodes int 46.243204ms
Change-Id: I38870993431d38fc81a2dc6a713321cfa2e40d85
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| cluster | ||
| cmd | ||
| docs | ||
| hack | ||
| LICENSES | ||
| logo | ||
| pkg | ||
| plugin | ||
| staging | ||
| test | ||
| third_party | ||
| vendor | ||
| .generated_files | ||
| .gitattributes | ||
| .gitignore | ||
| .go-version | ||
| .golangci.yaml | ||
| CHANGELOG.md | ||
| code-of-conduct.md | ||
| CONTRIBUTING.md | ||
| go.mod | ||
| go.sum | ||
| LICENSE | ||
| Makefile | ||
| OWNERS | ||
| OWNERS_ALIASES | ||
| README.md | ||
| SECURITY_CONTACTS | ||
| SUPPORT.md | ||
Kubernetes (K8s)
Kubernetes, also known as K8s, is an open source system for managing containerized applications across multiple hosts. It provides 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 your company 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 K8s
See our documentation on kubernetes.io.
Try our interactive tutorial.
Take a free course on Scalable Microservices with Kubernetes.
To use Kubernetes code as a library in other applications, see the list of published components.
Use of the k8s.io/kubernetes module or k8s.io/kubernetes/... packages as libraries is not supported.
To start developing K8s
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.
mkdir -p $GOPATH/src/k8s.io
cd $GOPATH/src/k8s.io
git clone https://github.com/kubernetes/kubernetes
cd kubernetes
make
You have a working Docker environment.
git clone https://github.com/kubernetes/kubernetes
cd kubernetes
make quick-release
For the full story, 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.
Community Meetings
The Calendar has the list of all the meetings in Kubernetes community in a single location.
Adopters
The User Case Studies website has real-world use cases of organizations across industries that are deploying/migrating to Kubernetes.
Governance
Kubernetes project is governed by a framework of principles, values, policies and processes to help our community and constituents towards our shared goals.
The Kubernetes Community is the launching point for learning about how we organize ourselves.
The Kubernetes Steering community repo is used by the Kubernetes Steering Committee, which oversees governance of the Kubernetes project.
Roadmap
The Kubernetes Enhancements repo provides information about Kubernetes releases, as well as feature tracking and backlogs.