009858f18d
Automatic merge from submit-queue Fix subPath existence check to not follow symlink **What this PR does / why we need it**: Volume mounting logic introduced in #43775 and #45623 checks for subPath existence before attempting to create a directory, should subPath not be present. This breaks if subPath is a dangling symlink, os.Stat returns "do not exist" status, yet `os.MkdirAll` can't create directory as symlink is present at the given path. This patch makes existence check to use os.Lstat which works for normal files/directories as well as doesn't not attempt to follow symlink, therefore it's "do not exist" status is more reliable when making a decision whether to create directory or not. subPath symlinks can be dangling in situations where kubelet is running in a container itself with access to docker socket, such as CoreOS's kubelet-wrapper script **Release note**: ```release-note Fix pods failing to start when subPath is a dangling symlink from kubelet point of view, which can happen if it is running inside a container ``` |
||
|---|---|---|
| .github | ||
| api | ||
| build | ||
| cluster | ||
| cmd | ||
| docs | ||
| examples | ||
| federation | ||
| Godeps | ||
| hack | ||
| logo | ||
| pkg | ||
| plugin | ||
| staging | ||
| test | ||
| third_party | ||
| translations | ||
| vendor | ||
| .bazelrc | ||
| .gazelcfg.json | ||
| .generated_files | ||
| .gitattributes | ||
| .gitignore | ||
| BUILD.bazel | ||
| CHANGELOG.md | ||
| code-of-conduct.md | ||
| CONTRIBUTING.md | ||
| labels.yaml | ||
| LICENSE | ||
| Makefile | ||
| Makefile.generated_files | ||
| OWNERS | ||
| OWNERS_ALIASES | ||
| README.md | ||
| Vagrantfile | ||
| WORKSPACE | ||
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.