A sample drop-in knife plugin that executes inspec commands via SSH.
knife inspec -q <query> -c <command> [-u <user> -k <keyfile>]
<query> - A Chef search query. Defaults to *, so overriding this is highly recommended.
<command> - The InSpec command to run. Defaults to 'detect'.
<user> - The SSH user to connect as. Defaults to 'chef'.
<keyfile> - The SSH keyfile to use. Defaults to '~/.ssh/id_dsa'.