git clone from remote server with ssh chaining

Question

we have a git repository on remove server A. I normally access that via ssh from my work machine, e.g.

git clone user@A:/path/to/repo

However, A is not accessible directly from outside work. There is another server, B, which I ssh into, which can then ssh into A. What I want to do now is to clone the repository on my machine at home. I tried stuff like

git clone B:A:/path/to/repo
git clone user@B:A/path/to/repo

neither of which worked. I suppose I could copy the repo on B and clone from there, but merging changes back to A would be a hassle. Any suggestions how I can access A directly?

David M. Syzdek · Accepted Answer · 2011-10-18 18:56:31Z

5

If you have passwordless SSH setup between server A and server B, then you can write a simple wrapper script which connects to server A via SSH and runs the command SSH with the arguments from Git.

Create Script:

cat << EOF > ssh-wrapper.sh
#!/bin/sh
ssh -T serverB.example.com ssh ${@}
exit $?
EOF
chmod 755 ssh-wrapper.sh

Then set GIT_SSH to ./ssh-wrapper.sh and call Git:

GIT_SSH='./ssh-wrapper.sh' git clone user@A:/path/to/repo

answered Oct 18, 2011 at 18:56

David M. Syzdek

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2 Comments

mbatchkarov Over a year ago

Great, thanks. A quick note to readers: commit using the standard syntax , e.g. "git commit -m ". Push by specifying the path to the wrapper: GIT_SSH='./ssh-wrapper.sh' git push

Steve Smith Over a year ago

I needed to invoke ruby's bundler with a specific deploy key. After ages of searching I finally found the magic env variable in your answer. Thanks!

alediaferia · Accepted Answer · 2011-10-18 07:28:25Z

2

I think you want a SSH-Tunnel to make it through A. Take a look at this: http://www.revsys.com/writings/quicktips/ssh-tunnel.html

answered Oct 18, 2011 at 7:28

alediaferia

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