Change minikube bootstrapper from localkube to kubeadm

[devguyio]

Kyma for minikube currently makes use of localkube boostrapper. Localkube boostrapper has been deprecated and will be removed in future minikube release (see PR #2911 ). Users are supposed to migrate to kubeadm as bootstrapper.
This issue tracks Kyma for minikube migration from localkube to kubeadm boostrapper.

[devguyio]

Comment from @sslavic

One approach I tried was to put certs in ~/.minikube/files/var/lib/localkube/certs/, expecting they would get copied on the VM on path /var/lib/localkube/certs/ which is accessible to api server Docker container running in VM. This trick worked on Mac, but fails on Windows because files do not get copied consistently as expected (even when same vm driver is used) to root but instead end up nested to /home/docker directory, and also directory structure gets flattened see minikube#2768

Alternative ideas how to proceed:

• fix the problematic bug/inconsistency in minikube minikube#2768
• for Windows (or other OS too) run minikube in Docker
• evaluate using Docker for Mac and Docker for Windows, as replacement for minikube
• drop Windows support
• drop problematic features (dex) for local/minikube setup
  • extreme case being to drop local platform startup mode completely

[devguyio]

Comment from @sslavic

Consulted with @pbochynski on how to proceed. He's driving a proposal for new Kyma authorization design which would remove OIDC configuration and make it easier to switch minikube to kubeadm. If proposal goes through, then this issue to move minikube from localkube to kubeadm might become just subtask or follow up task to removing OIDC configuration.

[stale]

This issue has been automatically marked as stale due to the lack of recent activity. It will soon be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically closed due to the lack of recent activity.

[abbi-gaurav]

This issue is still valid. Hence reopening

[stale]

This issue has been automatically marked as stale due to the lack of recent activity. It will soon be closed if no further activity occurs. Thank you for your contributions.

[Disper]

It's no longer actual https://github.com/kyma-project/kyma/blob/master/installation/scripts/minikube.sh#L217