We consider Continuous Integration (CI) an important aspect in a modern software engineering workflow. Easy-to-use CI resources should be available for all Helmholtz scientists. Beside the Helmholtz-wide GitLab many Helmholtz centers run their own GitLab instances on dedicated infrastructure in their center. In order to bundle resources and enable research software projects to easily use CI for their projects, CI will be offered as a service. In this milestone, we will set up CI as a Service and test it first with few pilot centers, in order to make it available to all Helmholtz communities.