Continuous integration with Gurobi
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I am currently writing my master thesis along with two fellow students. To write more robust code and follow clean code-principles we are writing tests to make sure that everything works as expected and allow for greater flexibility in our project.
We have sat up CircleCI as a continuous integration tool that runs our tests on every new Pull Request. The problem is that we don´t have Gurobi working with the CI-tool. Currently, we have to skip all Gurobi-related tests in CircleCI, and that seems like a lot of waste. Is it possible to somehow setup Gurobi on a CI-tool?
I am using an academic licence.
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Due to license restrictions, this is not possible with an academic license - except if your CI is running locally and can for example access a site license or is within the academic domain.
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So if I can run Jenkins on-premise at a university server it might be possible? Do you have any documentation on this or pointers as to where to start?
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Running Gurobi on a Jenkins server or some other CI implementation is not different than running it locally. You just need to make sure that a valid license is available and accessible from the server.
Do you have a site license at your university? Then you only need to specify the license or token server.
Otherwise, you may create a local single-user academic license for the CI server.
In all cases, please ensure that the CI server is only used for academic purposes to not violate our license conditions.
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The practical issue with using grbgetkey in a CI environment is that you can only activate a key once, while the CI workflow is run many times during the course of code development. So if there's no way for license keys (.lic files) to be hostname/hostid independent, or if one cannot programmatically request a new keycode from Gurobi, I don't see how one could do this..
So the essential issue here seems to me to be this:
Although I am using the academic license legitimately to develop academic open-source code (which will require users to have their own Gurobi license to use the Gurobi-specific parts of my application), as the developer of the code I cannot predict which machine (i.e. which hostname) will be assigned to test my code by my CI provider, and thus I cannot test my code. Even if I was using my own Jenkins installation, there is no guarantee that the worker nodes I would be using for testing would have a predictable hostname.
Any pointers here would be appreciated...
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Do you have a site license at your university? Then you only need to specify the token server.
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