Production-Grade Container Scheduling and Management
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Patrick Ohly 43539c855f e2e framework: unify logging, support skipping helpers
ginkgo.GinkgoHelper is a recent addition to ginkgo which allows functions to
mark themselves as helper. This then changes which callstack gets reported for
failures. It makes sense to support the same mechanism also for logging.

There's also no reason why framework.Logf should produce output that is in a
different format than klog log entries. Having time stamps formatted
differently makes it hard to read test output which uses a mixture of both.
Another user-visible advantage is that the error log entry from
framework.ExpectNoError now references the test source code.

With textlogger there is a simple replacement for klog that can be reconfigured
to let the caller handle stack unwinding. klog itself doesn't support that
and should be modified to support it (feature freeze).

Emitting printf-style output via that logger would work, but become less
readable because the message string would get quoted instead of printing it
verbatim as before. So instead, the traditional klog header gets reproduced
in the framework code. In this example, the first line is from klog, the second
from Logf:

    I0111 11:00:54.088957  332873 factory.go:193] Registered Plugin "containerd"
    ...
      I0111 11:00:54.987534 332873 util.go:506] >>> kubeConfig: /var/run/kubernetes/admin.kubeconfig

Indention is a bit different because the initial output is printed before
installing the logger which writes through ginkgo.GinkgoWriter.

One welcome side effect is that now "go vet" detects mismatched parameters for
framework.Logf because fmt.Sprintf is called without mangling the format
string. Some of the calls were incorrect.
2024-01-20 18:23:31 +01:00
.github
api Make verify-fieldname-docs actually error 2024-01-14 10:32:08 -08:00
build [go] Bump images, dependencies and versions to go 1.21.6 and distroless iptables to 0.4.4 2024-01-11 11:54:35 +01:00
CHANGELOG CHANGELOG: Update directory for v1.26.13 release 2024-01-17 19:42:12 +00:00
cluster Merge pull request #122290 from andrewsykim/ccm-version-bump 2024-01-04 18:00:24 +01:00
cmd Merge pull request #122850 from neolit123/1.30-v1beta4-timeouts 2024-01-19 03:28:14 +01:00
docs
hack Merge pull request #122879 from liggitt/verbose-local-up 2024-01-20 03:50:35 +01:00
LICENSES dependencies: zapr v1.3.0, zap v1.26.0 2023-11-07 20:24:28 +01:00
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pkg Merge pull request #117803 from sourcelliu/preFilterState 2024-01-19 10:57:20 +01:00
plugin Remove unneeded permissions of node-controller role 2024-01-18 15:58:28 +08:00
staging Merge pull request #122842 from pohly/klog-update 2024-01-18 20:11:00 +01:00
test e2e framework: unify logging, support skipping helpers 2024-01-20 18:23:31 +01:00
third_party verify: nicer failure message rendering in Prow 2023-06-02 15:39:27 +02:00
vendor Merge pull request #122842 from pohly/klog-update 2024-01-18 20:11:00 +01:00
.generated_files
.gitattributes
.gitignore add rundir folder to gitignore 2023-10-12 21:54:59 +01:00
.go-version [go] Bump images, dependencies and versions to go 1.21.6 and distroless iptables to 0.4.4 2024-01-11 11:54:35 +01:00
CHANGELOG.md
code-of-conduct.md
CONTRIBUTING.md
go.mod Merge pull request #122842 from pohly/klog-update 2024-01-18 20:11:00 +01:00
go.sum Merge pull request #122842 from pohly/klog-update 2024-01-18 20:11:00 +01:00
LICENSE
Makefile
OWNERS
OWNERS_ALIASES Merge pull request #122307 from carlory/sig-storage 2024-01-02 18:04:25 +01:00
README.md use the latest semver version for the badge 2023-10-24 15:30:17 -04:00
SECURITY_CONTACTS Update SECURITY_CONTACTS 2023-10-10 14:45:43 +00:00
SUPPORT.md

Kubernetes (K8s)

CII Best Practices Go Report Card GitHub release (latest SemVer)


Kubernetes, also known as K8s, is an open source system for managing containerized applications across multiple hosts. It provides basic mechanisms for the 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.

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 the 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.