Fabric8
fabric8 is an end to end development platform spanning ideation to production for the creation of cloud native applications and microservices
linux windows osx open-source free cloud-paas virt go
Travis-CI
Travis CI is a hosted CI service free for open source communities. It directly integrates with GitHub, BitBucket and many other version control systems, and offers deep support for a variety of languages. Travis also has an Enterprise version that can be installed on your own servers.
linux free commercial ci java