Docker: How to access to a private github repo using ssh?
I’m trying to clone a private repo from github using Docker. The problem is that I need to use ssh to access to that repo. I added a key in my github project’s setting which is used, I suppose, to identify the docker‘s server.
My problem is that I can’t figure out what I should write in my Dockerfile so that the server use that key when it tries to access to my github repo. I saw examples where id_rsa is added to the container, but I don’t know where id_rsa is stored on their server, if it exists
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RUN mkdir /root/.ssh/ # can't find the file id_rsa ADD id_rsa /root/.ssh/id_rsa RUN touch /root/.ssh/known_hosts RUN ssh-keyscan github.com >> /root/.ssh/known_hosts run git clone email@example.com:user/repo.git
How do I access to my private repo from docker’s server ?
2 Solutions collect form web for “Docker: How to access to a private github repo using ssh?”
If you want to use
git from the Dockerfile, you need to configure the container in the same way as you would configure your own development machine.
I can’t really understand which is “their” in “their server”, so I’m just guessing.
When you registered a public key with github, you should have got the private key too. That’s the
id_rsa that you see in other examples.
If you can not locate that file, just start over. Delete the old key, generate a new one and configure it on github and on your docker build context (in your example, just copy it in the same folder as the Dockerfile).
As a different strategy, you might want to do the checkout outside of the image build process (clone locally and
ADD everything to the image).
I managed to do this by using ssh-add on the key.
A “problem” with using multiple
RUN instructions is that non-persistent data won’t be available at the next
RUN. I managed to log in and use github private repos with
RUN eval `ssh-agent -s` && \ ssh-add id_rsa && \ git clone firstname.lastname@example.org:user/repo.git
By using the
&&‘s on a single CMD, the
eval process will still be running and ssh-agent has the key loaded when you connect to github.
I hope this helps.