Support OpenSSH's IdentityFile config option #2533
Description
Description
As a developer I want docker-py to load the identity file according to my setting specified in ~/.ssh/config, not only the "default" id_rsa file.
Example
I have a ~/.ssh/config file with contents:
Host myHost
User myUser
HostName myIp
IdentityFile C:/Users/me/.ssh/id_rsa_custom_file
IdentitiesOnly yes
Now I would like docker-py to pick up C:/Users/me/.ssh/id_rsa_custom_file for trying to connect to the remote host (For example when I want to run docker-compose -H "ssh://myHost" ps. However right now it does not.
When I rename C:/Users/me/.ssh/id_rsa_custom_file to C:/Users/me/.ssh/id_rsa it works just fine. However this is not an option for me since I have multiple identity files and hosts that I want to use.
Proposal
Add something like this to the sshcon.py:
if 'identityfile' in host_config:
self.ssh_params['key_filename '] = host_config['identityfile']