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DEVELOPMENT.md

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Local Development

  • First start minikube with enough memory.
minikube start --memory 4g
  • create 2 loop devices for csi-lvm usage
minikube ssh 'for i in 0 1; do fallocate -l 1G loop${i} ; sudo losetup -f loop${i}; sudo losetup -a ; done'
  • set docker environment to point to minikube
eval $(minikube docker-env)
  • build docker images of controller and provisioner
make dockerimages
  • deploy the controller and start logging in the background
k apply -f deploy/controller.yaml
stern -n csi-lvm ".*" &
  • deploy the pvc´s
k apply -f example/pvc.yaml
  • start using the pvc in different pod scenarios, see example pod-*.yaml

NOTICE on block mount tests in minikube

The busybox implementation of losetup lacks some flags on which the kubernetes currently depends on. (see kubernetes/kubernetes#83265 )

So for block mounts on minikube you have to copy a "full" linux losetup binary to minikube

If you're on linux e.g.:

 minikube ssh 'sudo rm /sbin/losetup'
 scp -o 'StrictHostKeyChecking=no' -i $(minikube ssh-key) $(which losetup)  docker@$(minikube ip):/tmp/losetup
 minikube ssh 'sudo mv /tmp/losetup /sbin/losetup'