utkuozdemir / pv-migrate

CLI tool to easily migrate Kubernetes persistent volumes

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NodePort type service

BonzTM opened this issue · comments

I'm surprised to not have seen this request yet, but my request would be to implement a NodePort type service.

Is your feature request related to a problem? Please describe.
LoadBalancer type service is great, if you have IPs to play around with or a L2 implementation in-cluster like MetalLB. Local is great, but unstable and slow with large PVs. A NodePort service implementation would be easier to implement and possibly solve a missing piece between these solutions.

Describe the solution you'd like
A NodePort option that creates a service of type NodePort, therefore opening a high-port on each node for incoming traffic (40000 for instance) and forwarding SSH from that port to 22 on the pod.

What would you prefer the rsync target to be? <ip-of-a-random-node>:<nodeport> or something else?

What would you prefer the rsync target to be? <ip-of-a-random-node>:<nodeport> or something else?

Yes. I think pulling one from kubectl would be good, but requiring the user to input a node IP would also be fine

Hi,

I also was looking on how to setup NodePort.

I suppose this flag should do it:

--helm-set sshd.service.type=NodePort

@pavlovnicola It wouldn't work unfortunately, it needs explicit support. Setting some helm values can prevent pv-migrate to work correctly, and this is one of the cases - the whole logic depends on service type being LoadBalancer there.

@utkuozdemir I tried it anyway and you are right. It does not work. Thanks for clarifying.

Any update on this?
I am trying to move data between two self hosted clusters (there isn't any LB on both)

I would use local strategy but I am facing the same error reported on #236