Add a PointToHost function for podman as well

[afbjorklund]

And add an active variable, similiar to docker

Closes #6886

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: afbjorklund

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [afbjorklund]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[medyagh]

/ok-to-test

[minikube-pr-bot]

kvm2 Driver
docker Driver

[medyagh]

please also add it to fix.go, so we warn people that they need to reval their podman-env on minikube restart (because of IP change)

// maybeWarnAboutEvalEnv wil warn user if they need to re-eval their docker-env, podman-env
// because docker changes the allocated bind ports after restart https://github.com/kubernetes/minikube/issues/6824
func maybeWarnAboutEvalEnv(drver string, name string) {
	if !driver.IsKIC(drver) {
		return
	}
	p := os.Getenv(constants.MinikubeActiveDockerdEnv)
	if p == "" {
		return
	}
	out.T(out.Notice, "Noticed you have an activated docker-env on {{.driver_name}} driver in this terminal:", out.V{"driver_name": drver})
	// TODO: refactor docker-env package to generate only eval command per shell. https://github.com/kubernetes/minikube/issues/6887
	out.WarningT(`Please re-eval your docker-env, To ensure your environment variables have updated ports: 

	'minikube -p {{.profile_name}} docker-env'

	`, out.V{"profile_name": name})

}

[minikube-pr-bot]

kvm2 Driver
Times for minikube: [63.75251888599999 64.683807988 63.690826474]
Average time for minikube: 64.04238444933334

Times for Minikube (PR 8062): [87.377967402 63.936263394 59.283693117]
Average time for Minikube (PR 8062): 70.199307971

Averages Time Per Log

+--------------------------------+-----------+--------------------+
|              LOG               | MINIKUBE  | MINIKUBE (PR 8062) |
+--------------------------------+-----------+--------------------+
| * minikube v1.10.0-beta.2 on   |  0.065377 |           0.061509 |
| Debian 9.11                    |           |                    |
| * Using the kvm2 driver based  |  0.021961 |           0.021717 |
| on existing profile            |           |                    |
| * Starting control plane node  |  0.003422 |           0.003144 |
| minikube in cluster minikube   |           |                    |
| * Creating kvm2 VM (CPUs=2,    | 39.451042 |          38.537679 |
| Memory=3700MB, Disk=20000MB)   |           |                    |
| ...                            |           |                    |
| * Preparing Kubernetes v1.18.1 | 22.473871 |          29.045276 |
| on Docker 19.03.8 ...          |           |                    |
| * Verifying Kubernetes         |  1.329015 |           1.627911 |
| components...                  |           |                    |
| * Enabled addons:              |  0.620336 |           0.814623 |
| default-storageclass,          |           |                    |
| storage-provisioner            |           |                    |
| * Done! kubectl is now         |  0.073797 |           0.082118 |
| configured to use "minikube"   |           |                    |
|                                |  0.003564 |           0.005331 |
+--------------------------------+-----------+--------------------+

docker Driver
Times for minikube: [29.161760439000002 26.694306188999995 26.198901824]
Average time for minikube: 27.351656150666667

Times for Minikube (PR 8062): [26.033633311000003 24.203768607999994 27.897081474]
Average time for Minikube (PR 8062): 26.044827797666667

Averages Time Per Log

+----------------------------------------+-----------+--------------------+
|                  LOG                   | MINIKUBE  | MINIKUBE (PR 8062) |
+----------------------------------------+-----------+--------------------+
| * minikube v1.10.0-beta.2 on           |  0.078202 |           0.075439 |
| Debian 9.11                            |           |                    |
| * Using the docker driver              |  0.002529 |           0.002438 |
| based on existing profile              |           |                    |
| * Starting control plane node          |  0.058888 |           0.058752 |
| minikube in cluster minikube           |           |                    |
| * Creating docker container            |  7.764689 |           7.463842 |
| (CPUs=2, Memory=3700MB) ...            |           |                    |
| * Preparing Kubernetes v1.18.1         |  0.120739 |           0.116425 |
| on Docker 19.03.2 ...                  |           |                    |
|   -                                    | 17.866649 |          17.245758 |
| kubeadm.pod-network-cidr=10.244.0.0/16 |           |                    |
| * Verifying Kubernetes                 |  1.389769 |           0.850859 |
| components...                          |           |                    |
| * Enabled addons:                      |  0.002565 |           0.163700 |
| default-storageclass,                  |           |                    |
| storage-provisioner                    |           |                    |
| * Done! kubectl is now                 |  0.063050 |           0.063078 |
| configured to use "minikube"           |           |                    |
|                                        |  0.004576 |           0.004536 |
+----------------------------------------+-----------+--------------------+