I've tried many different configurations with the goal of configuring a GitHub account to use ssh authentication in Bamboo version 5.5.1. For the repository host I'm using "Git" instead of "GitHub", since the GitHub option requires a username and password.
For the repository URL this seems correct: ssh://git@github.com:path/to/project.git
The Authentication Type is set to "SSH private key" and I uploaded the private key to use. The build fails though, with the error "(java.lang.IllegalArgumentException : Unknown RepositoryDefinition 393240)". I've confirmed on the host that cloning the repo over ssh works, and I'm out of ideas on how to correctly configure this repository URL after doing many variations of the patterns at https://confluence.atlassian.com/display/BAMBOO/Git
Any help is much appreciated!