Code and Documentation Generation

CNI

Antrea uses protoc and protoc-gen-go to generate CNI gRPC service code.

If you make any change to cni.proto (/pkg/apis/cni/v1beta1/cni.proto), you can re-generate the code by invoking make codegen.

Extension API Resources and Custom Resource Definitions

Antrea extends Kubernetes API with an extension APIServer and Custom Resource Definitions, and uses k8s.io/code-generator (release-1.18) to generate clients, informers, conversions, protobuf codecs and other helpers. The resource definitions and their generated codes are located in the conventional paths: pkg/apis/<resource group> for internal types and pkg/apis/<resource group>/<version> for versioned types and pkg/client/clientset for clients.

If you make any change to any types.go, you can re-generate the code by invoking make codegen.

Mocks

Antrea uses the GoMock framework for its unit tests.

If you add or modify interfaces that need to be mocked, please add or update MOCKGEN_TARGETS in update-codegen-dockerized.sh (/hack/update-codegen-dockerized.sh) accordingly. All the mocks for a given package will typically be generated in a sub-package called testing. For example, the mock code for the interface Baz defined in the package pkg/foo/bar will be generated to pkg/foo/bar/testing/mock_bar.go, and you can import it via pkg/foo/bar/testing.

Same as above, you can re-generate the mock source code (with mockgen) by invoking make codegen.

Generated Documentation

Prometheus integration document contains a list of supported metrics, which could be affected by third party component changes. The collection of metrics is done from a running Kind deployment, in order to reflect the current list of metrics which is exposed by Antrea Controller and Agents.

To regenerate the metrics list within the document, use make-metrics-doc.sh (/hack/make-metrics-doc.sh) with document location as a parameter.