Trailblazer is a high-level Architecture libraries for the Ruby web application (not only for Rails). If you are no familiar with it yet - take a 20 minutes walk through guide...

I want to cover once again those places where our team had issues or misunderstanding. Trailblazer documentation got a lot of improvements recently and keep getting more and more care. Some points from this list are covered by the docs, but in practice not everything was smooth.

When you use more than one SSH key to access GitHub you can use primary account by default and additional, with such a config (assume your second SSH key file is ~/.ssh/id_rsa_pewpew)

Host github-pewpew
  HostName github.com
  IdentityFile ~/.ssh/id_rsa_pewpew

With Linux having ssh key in .ssh folder and configuring ~/.ssh/configis enough. But on MacOS I get an error during Git clone (and Capistrano deploy) like this:

git clone git@github-pewpew:.../...git
Cloning into 'MyRepo'...
ERROR: Repository not found.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights and the repository exists.

a bit confusing, but an error is not with Repo by itself (if you are completely sure that you are the repo owner or have write-rights).

Solution

On MacOS X I need to additional keys manually by

$ ssh-add ~/.ssh/id_rsa_pewpew

and you can check what key are in use right now

$ ssh-add -l

Note

On MacOS X you will need to add key after every system restart. It looks like we need to use OSX Keychain to reload them authomatically via

$ ssh-add -K [path/to/private SSH key]