https://minikube.sigs.k8s.io/docs/handbook/config/

minikube
    config
        set memory 16384

~/.kube/config

apiVersion: v1
clusters:
- cluster:
    certificate-authority: /home/iharh/.minikube/ca.crt
    server: https://192.168.99.100:8443
  name: minikube
contexts:
- context:
    cluster: minikube
    user: minikube
  name: minikube
current-context: minikube
kind: Config
preferences: {}
users:
- name: minikube
  user:
    client-certificate: /home/iharh/.minikube/client.crt
    client-key: /home/iharh/.minikube/client.key

~/.minikube/
    profiles/minikube/config.json
    machines/minikube/config.json
        ... longer version of ....

{
    "MachineConfig": {
        "MinikubeISO": "https://storage.googleapis.com/minikube/iso/minikube-v0.30.0.iso",
        "Memory": 4096,
        "CPUs": 2,
        "DiskSize": 40000,
        "VMDriver": "virtualbox",
        "HyperkitVpnKitSock": "",
        "HyperkitVSockPorts": [],
        "XhyveDiskDriver": "ahci-hd",
        "DockerEnv": null,
        "InsecureRegistry": null,
        "RegistryMirror": null,
        "HostOnlyCIDR": "192.168.99.1/24",
        "HypervVirtualSwitch": "",
        "KvmNetwork": "default",
        "DockerOpt": null,
        "DisableDriverMounts": false,
        "NFSShare": [],
        "NFSSharesRoot": "/nfsshares",
        "UUID": "",
        "GPU": false
    },
    "KubernetesConfig": {
        "KubernetesVersion": "v1.12.0",
        "NodeIP": "192.168.99.100",
        "NodeName": "minikube",
        "APIServerName": "minikubeCA",
        "APIServerNames": null,
        "APIServerIPs": null,
        "DNSDomain": "cluster.local",
        "ContainerRuntime": "",
        "NetworkPlugin": "",
        "FeatureGates": "",
        "ServiceCIDR": "10.96.0.0/12",
        "ExtraOptions": null,
        "ShouldLoadCachedImages": false
    }
}

/etc/crictl.yaml
runtime-endpoint: unix:///run/containerd/containerd.sock
image-endpoint: unix:///run/containerd/containerd.sock
timeout: 10
debug: false


WARNING: IT IS RECOMMENDED NOT TO RUN THE NONE DRIVER ON PERSONAL WORKSTATIONS
        The 'none' driver will run an insecure kubernetes apiserver as root that may leave the host vulnerable to CSRF attacks

When using the none driver, the kubectl config and credentials generated will be root owned and will appear in the root home directory.
You will need to move the files to the appropriate location and then set the correct permissions.  An example of this is below:

        sudo mv /root/.kube $HOME/.kube # this will write over any previous configuration
        sudo chown -R $USER $HOME/.kube
        sudo chgrp -R $USER $HOME/.kube

        sudo mv /root/.minikube $HOME/.minikube # this will write over any previous configuration
        sudo chown -R $USER $HOME/.minikube
        sudo chgrp -R $USER $HOME/.minikube