# Image Builder for Cluster API The Image Builder can be used to build images intended for use with Kubernetes [CAPI](https://cluster-api.sigs.k8s.io/) providers. Each provider has its own format of images that it can work with. For example, AWS instances use AMIs, and vSphere uses OVAs. For detailed documentation, see https://image-builder.sigs.k8s.io/capi/capi.html.