nfs-subdir-external-provisioner
descheduler
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nfs-subdir-external-provisioner | descheduler | |
---|---|---|
48 | 27 | |
2,314 | 4,012 | |
3.6% | 2.7% | |
5.1 | 0.0 | |
about 1 month ago | 1 day ago | |
Shell | Go | |
Apache License 2.0 | Apache License 2.0 |
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nfs-subdir-external-provisioner
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Investigating a failed VolumeSnapshot with NFS on Kubernetes
Using nfs-subdir-external-provisioner instead of csi-driver-nfs
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Help me What to Choose?
NFS Provisioner
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Longhorn alternatives
Depends on how much resiliency you need . Something like https://github.com/kubernetes-sigs/nfs-subdir-external-provisioner works well for a lab or non-prod cluster. You could even use something like this in prod if you have access to highly reliably NFS mounts.
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Move to K8s for hosting at home?
I used the NFS provisioner for persistent volumes until I got the Ceph side up and running. I created a share on my NAS specifically for k8s. It worked very well and had the bonus of being just a regular file system that you could browse/edit easily (just place files in or edit config). I would agree with not moving plex into k8s. I right now just have a barebones 1 control 2 worker setup using k3s.
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Unsure how NFS Persistent Volumes work, please help!
This is what you need https://github.com/kubernetes-sigs/nfs-subdir-external-provisioner Point it to a folder and it will create subfolders for each PVC.
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Almost 1yr in the making, finally got my Kubernetes DevOps/IaC/CD set up going, fully self-hosted cloud equiivalent. GLEE!!! (AMA?)
nfs-subdir-external-provisioner: https://github.com/kubernetes-sigs/nfs-subdir-external-provisioner
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Network Storage on On-Prem Barebones Machine
With NFS I was able to get that to work using NFS SubDir Provisioner and this is working fine as far as I can tell. Though it is odd how it works. You dont seem to be able to tell the exact path you're going for, so you have to create a provisioner that goes to the path directly and even it will create its own folder with a GUI associated to it. This really isnt idea for things like scripted backups, or even knowing how persistence works properly.
- Template like values in CSI manifest ${.PVC.namespace} and ${.PVC.name} ... Somebody give me some insight into these?
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Longhorn to nas nfs
I have also used: https://github.com/kubernetes-sigs/nfs-subdir-external-provisioner for playing with NFS, directly from K8, instead of hosts.
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K8s Persistant Storage
Then nfs is the way to go. Im using this one https://github.com/kubernetes-sigs/nfs-subdir-external-provisioner at home with k3s. works fine for my usecases. I havent tested snapshots and restores yet.
descheduler
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Any advice to rebalance and reallocation pod to spread among low usage nodes with existing deployment
The Kubernetes Sig's deschedule sounds like what you want, it can be configured to move pods around such that an over or under utilized node will get pods removed or added: https://github.com/kubernetes-sigs/descheduler
- What Wishlist Features Would You Like To See From K8s?
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Schedule on Least Utilized Node
maybe descheduler can help? https://github.com/kubernetes-sigs/descheduler
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I have 3 nodes. One of the nodes suddenly went down. How do I make the pods spread evenly to the other nodes?
Surprised this wasn't suggested yet, you can also use a software like the k8s Descheduler that executes periodically to rebalance your workloads across the existing nodes.
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Leader Election In Kubernetes
Here an example of coordination api in Go https://github.com/kubernetes-sigs/descheduler/commit/3cbae5e72ba53447a609e6001755ff395e6eeceb https://github.com/kubernetes-sigs/descheduler/commit/0a52af9ab82a52fd8c864a81f4033736f11aab34
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Kubernetes Cordon: How It Works and When to Use It
You might want to take a look at descheduler: https://github.com/kubernetes-sigs/descheduler
- How do I define a maximum life time for a pod?
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How to make sure node autoscaler scales nodes down after deployment's replicaset are scaled down?
Having said that, it seems like that the "best practice" is using https://github.com/kubernetes-sigs/descheduler#lownodeutilization. What do you think?
There's no built in descheduler, but there is https://github.com/kubernetes-sigs/descheduler
What are some alternatives?
csi-driver-nfs - This driver allows Kubernetes to access NFS server on Linux node.
longhorn - Cloud-Native distributed storage built on and for Kubernetes
nfs-ganesha-server-and-external-provisioner - NFS Ganesha Server and Volume Provisioner.
csi-s3 - A Container Storage Interface for S3
flux2 - Open and extensible continuous delivery solution for Kubernetes. Powered by GitOps Toolkit.
autoscaler - Autoscaling components for Kubernetes
kadalu - A lightweight Persistent storage solution for Kubernetes / OpenShift / Nomad using GlusterFS in background. More information at https://kadalu.tech
csi-driver-smb - This driver allows Kubernetes to access SMB Server on both Linux and Windows nodes.
restic - Fast, secure, efficient backup program
kube-prometheus - Use Prometheus to monitor Kubernetes and applications running on Kubernetes
helm - The Kubernetes Package Manager
container-object-storage-interface-spec - Container Object Storage (COSI) Specification