78082a6a28
Automatic merge from submit-queue (batch tested with PRs 64690, 66174). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. Check presence of /dev/disk/by-id before reading it in ScaleIO **What this PR does / why we need it**: In certain OS environments, like RHEL 7.4 using Xen PV driver `xen_blkfront` for boot and data disks, the path `/dev/disk/by-id` does not exist in the OS post boot. When trying to dynamically provision PVs from a ScaleIO storageclass in such an environment, ScaleIO fails when trying to create the PV with: ``` E0711 08:02:50.441964 25246 sio_client.go:342] scaleio: failed to ReadDir /dev/disk/by-id: open /dev/disk/by-id: no such file or directory E0711 08:02:50.441989 25246 sio_volume.go:123] scaleio: setup of volume k8svol-282bd4fa84d: open /dev/disk/by-id: no such file or directory ``` This PR avoids the above failure by first checking for the presence of `/dev/disk/by-id` before attempting to read from it as done in other drivers like gce_pd. **Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*: Fixes # **Special notes for your reviewer**: **Release note**: ```release-note NONE ``` /sig storage |
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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
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.