TopoLVM csi driver

[Jean-Baptiste-Lasselle]

Ok celui là il faut l'essayer, et au pire refaire le build arm64 comlet, ce devrait être faisable plsu facilement que pour openEBS

https://github.com/topolvm/topolvm?tab=readme-ov-file#getting-started

[Jean-Baptiste-Lasselle]

the only small little issue i have with topolvm, is that it has as a requirement, cert-manager, so I MUST have a domain name for the ACME challenges to succeed, cf. https://github.com/topolvm/topolvm/blob/main/docs/getting-started.md

im probabl doomed to buy ine for poc/demo purposes

update: completely false the cert manager is used by topolvm, but it absolutely not requires any Donmain name, and does not use ACME

[Jean-Baptiste-Lasselle]

Useful infos to understand the kind demo example of topolvm:

• in the make file they refer to something called lvmd:
  • that a command line that is actually a part of topolvm
  • the source code of lvmd is here : https://github.com/topolvm/topolvm/tree/main/cmd/lvmd
  • lvmd 's purpose is to control lvm volume groups using gRPC
  • the little docs for using lvmd: https://github.com/topolvm/topolvm/blob/main/docs/lvmd.md
  • why lvmd ? I mean the challenge with using Rook Ceph and/or OpenEBS in Kind (or k3d) is okay how do I make it possible to use lvm or non formatted raw devices inside docker conainers (which are going to be the kubernetes cluster nodes)?
• I still have the issue with Open EBS that it uses bitnami's etcd container which is NOT available for arm64 , and my problem is that it is hard to configure openEBS to use something else, i will have to tweak its helm chart, and probably more

[Jean-Baptiste-Lasselle]

Useful infos to understand the kind demo example of topolvm:

• in the make file they refer to something called lvmd:

  • that a command line that is actually a part of topolvm
  • the source code of lvmd is here : https://github.com/topolvm/topolvm/tree/main/cmd/lvmd
  • lvmd 's purpose is to control lvm volume groups using gRPC
  • the little docs for using lvmd: https://github.com/topolvm/topolvm/blob/main/docs/lvmd.md
  • why lvmd ? I mean the challenge with using Rook Ceph and/or OpenEBS in Kind (or k3d) is okay how do I make it possible to use lvm or non formatted raw devices inside docker conainers (which are going to be the kubernetes cluster nodes)?
• I still have the issue with Open EBS that it uses bitnami's etcd container which is NOT available for arm64 , and my problem is that it is hard to configure openEBS to use something else, i will have to tweak its helm chart, and probably more

LVMD is a simple grpc api to run LVM operations, its source code is in the topolvm repository. The TopoLVM CSI driver iuses this gRPC api to run LVM operations.