Be able to customize the developer account password

[guillaumerose]

Now that the CA and the kubeadmin password are rotated, we are close to have a fully secured cluster. Only the developer account has always the same default password developer.

We can rotate it by default and/or add a new configuration option/flag to customize it

[rohanKanojia]

Hello, Could you please help me in understanding what needs to be done in order to fix this issue? I'll try to explain what I understand at the moment. Feel free to add anything in case I've missed anything.

This issue seems to be created as a follow up task done in 5a6e902

I think we want to achieve these things:

• We need to replace hardcoded developer password to an opinionated value (just like kubeconfig password)
• (Optional) Add another property developer-password to CRC config similar to kubeadmin-password to override opinionated developer password

To do this, we would need to refactor this method to be generic enough to generate a password for any specified user:

crc/pkg/crc/cluster/kubeadmin_password.go

Line 21 in d9f83bc

func GenerateKubeAdminUserPassword() error {

We would also need to update start.go to generate a password for developer user just like kubeadmin:

crc/pkg/crc/machine/start.go

Lines 685 to 688 in d9f83bc

	if err := cluster.GenerateKubeAdminUserPassword(); err != nil {
	return errors.Wrap(err, "Error generating new kubeadmin password")
	}
	}

Also, we need to add another field in ClusterConfig struct to store developer password and adjust other structs to read it:

crc/pkg/crc/cluster/kubeadmin_password.go

Lines 20 to 21 in d9f83bc

	// GenerateKubeAdminUserPassword creates and put updated kubeadmin password to ~/.crc/machine/crc/kubeadmin-password
	func GenerateKubeAdminUserPassword() error {