1、Get key

Key Path
c:\user\xxxooo\.docker\machine\machines\%%%%%

xxxooo user

%%%%%  machine name

id_rsa  This is key

2、Need vm ip、id_rsa

Get IP：
1. docker-machine ssh %%%%%
2. ifconfig

If need PPK：winscp can auto change id_rsa to ppk

3、last step login VM account：docker

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https://github.com/boot2docker/boot2docker

Docker Machine auto logs in using the generated SSH key, but if you want to SSH into the machine manually (or you’re not using a Docker Machine managed VM), the credentials are:

user: docker 

pass: tcuser