[ghempton]

You also don't need to ssh into the box with chef...

[jaggederest]

Technically you're both wrong - both chef and git use ssh as an underlying transport.

[sandfox]

Pedant time! ssh is just one of many transports that git can use.

[jdminhbg]

He's right though about Heroku, you use ssh as the transport to deploy via git.