Terraform apply always fails with apiServer.certSANs: Invalid value: ""

[sadlil]

Trying to create a simple minikube_cluster resource with terraform and terraform-provider-minikube failes with the following errors

│ Error: wait: /bin/bash -c "sudo env PATH="/var/lib/minikube/binaries/v1.26.1:$PATH" kubeadm init --config /var/tmp/minikube/kubeadm.yaml  --ignore-preflight-errors=DirAvailable--etc-kubernetes-manifests,DirAvailable--var-lib-minikube,DirAvailable--var-lib-minikube-etcd,FileAvailable--etc-kubernetes-manifests-kube-scheduler.yaml,FileAvailable--etc-kubernetes-manifests-kube-apiserver.yaml,FileAvailable--etc-kubernetes-manifests-kube-controller-manager.yaml,FileAvailable--etc-kubernetes-manifests-etcd.yaml,Port-10250,Swap,NumCPU,Mem,SystemVerification,FileContent--proc-sys-net-bridge-bridge-nf-call-iptables": Process exited with status 3
│ stdout:
│ 
│ stderr:
│ W0320 15:53:06.074140    6026 initconfiguration.go:119] Usage of CRI endpoints without URL scheme is deprecated and can cause kubelet errors in the future. Automatically prepending scheme "unix" to the "criSocket" with value "/var/run/cri-dockerd.sock". Please update your configuration!
│ apiServer.certSANs: Invalid value: "": altname is not a valid IP address, DNS label or a DNS label with subdomain wildcards: a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*'); a wildcard DNS-1123 subdomain must start with '*.', followed by a valid DNS subdomain, which must consist of lower case alphanumeric characters, '-' or '.' and end with an alphanumeric character (e.g. '*.example.com', regex used for validation is '\*\.[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')
│ To see the stack trace of this error execute with --v=5 or higher
│ 
│ 
│   with module.minikube_cluster.minikube_cluster.periscope,
│   on cluster/minikube.tf line 5, in resource "minikube_cluster" "periscope":
│    5: resource "minikube_cluster" "periscope" {
│

Looking at the rootcasue it seems with the provider the kubeadm config contains a apiServer.certSANs value with "".

---
apiVersion: kubeadm.k8s.io/v1beta3
kind: ClusterConfiguration
apiServer:
  certSANs: ["127.0.0.1", "localhost", ""]

The "" string entry is invalid.

I looked into the implementation and this implementations seems to be using minikube library instead of just using os.Exec command to start a local minikube. This way we are missing a lot of default check and runtime override done by minikube cli.