InfraBox has a quite unique feature for running your Continuous Integration jobs on multiple clusters. So you can have multiple Kubernetes clusters, even on different networks (like different cloud providers and/or on-prem), with an InfraBox installation in each of them.
InfraBox is an open source continuous integration system based on Kubernetes. It can be used to run all your CI jobs like compilation of your software, tests and benchmarks, but it is not limited to it. Many people ask why do we need another CI system, because there are already plenty out there. We think that these CI tools did not solve many of our CI problems. Now depending on the CI tool you use you may have the same or similar issues: