Allow hostPath for data about helm-charts

[Crazybus]

Hey Michael,

When using hostpaths how do you make sure that each pod is scheduled to the node with that pods data? My understanding is that this was the main reason that the local storage volumes was created to address. If there is some kind of trick to guarantee this then I would be open to the idea.

[micw]

@Crazybus In my deployments I use nodeSelector for this (e.g. tag all date nodes with elasticsearch/datanode=true and use this as selector).
Edit: actually hostPath is a workaround for a current limitation in K8S - it's just not possible to auto-provision local storage or hostPath volumes.

[Crazybus]

@Crazybus In my deployments I use nodeSelector for this (e.g. tag all date nodes with elasticsearch/datanode=true and use this as selector).

Could you give a bit more info since I still don't understand how that would work. This sounds like your pods could land on any of the data nodes that were tagged with elasticsearch/datanode=true. I'd like to understand how you can have 6 Kubernetes nodes and a 3 pod statefulset and keep the pods on the correct host which has their data.

Edit: actually hostPath is a workaround for a current limitation in K8S - it's just not possible to auto-provision local storage or hostPath volumes.

I was able to get local persistent volumes working with auto provisioning and have documented it in the readme. This was on GCP so it probably wouldn't work for an on-prem cluster but it is indeed possible.

I tested it following the running the local volume static provisioner for GKE.

[botelastic]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[liquid-cloud]

Would love this feature!

[botelastic]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[botelastic]

This issue has been automatically closed because it has not had recent activity since being marked as stale.

[hjyoti]

Can any one explain how to use hostPath iun helm chart