docker-machine/docs/reference/regenerate-certs.md

regenerate-certs

Usage: docker-machine regenerate-certs [OPTIONS] [arg...]

Regenerate TLS Certificates for a machine

Description:
   Argument(s) are one or more machine names.

Options:

   --force, -f  Force rebuild and do not prompt

Regenerate TLS certificates and update the machine with new certs.

For example:

$ docker-machine regenerate-certs dev
Regenerate TLS machine certs?  Warning: this is irreversible. (y/n): y
Regenerating TLS certificates