Hey @bclaridge
Have you managed to make it work? I use Docker for Mac (1.12.0-rc2-beta17 (build: 9779)) and tried many solutions but I always get the error: bind: Address already in use
docker run -it -v $SSH_AUTH_SOCK:$SSH_AUTH_SOCK -e SSH_AUTH_SOCK="$SSH_AUTH_SOCK" --rm ubuntu bash
root@2ef24e4b480d:/# echo $SSH_AUTH_SOCK
/private/tmp/com.apple.launchd.F1ULFbm6Mx/Listeners
root@2ef24e4b480d:/# ssh-add -l
Could not open a connection to your authentication agent.
root@2ef24e4b480d:/# eval $(`ssh-agent -a $SSH_AUTH_SOCK`)
bind: Address already in use
Thanks