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James Riley

Ruby, Javascript and Friends. Part of the Snapppt team. Living a life of learning. Join me.

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An issue that had me stumbled a while back and one of which I was reminded of this morning: the initially frustrating issue of capistrano repeatedly asking for my server ssh password. Now connecting to the deployment server via keyless ssh works without fail, the deploy config file seems fine and you can connect to your source code server via keyless ssh – so what gives?

A key aspect to remember is that the purpose of capistrano is to run commands on your remote deployment server as if you were running them locally on the server itself. So when we reach the task of grabbing the code from your chosen code repository (cloning from git for example), the command is being called from the deployment server and so it’s this connection that requires the ssh connection set up is order to avoid passwords.

The solution here is to set up the ssh key between your deployment server and your source code repository server to authorise the connection, and this is done in the usual way: running ssh-keygen on the deployment server, then copying the generated .ssh/id_rsa.pub into a new line of your source code servers .ssh/authorized_keys2 file. The details here may vary depending on your setup.

Done, no more pestering – capistrano is supposed to improve productivity after all right?