3.3.4. client-go¶
Kubernetes API Types¶
The actual Go types are contained in a types.go file (e.g., k8s.io/api/core/v1/types.go).
API Machinery¶
It includes all the generic building blocks to implement a Kubernetes-like API.
API Machinery is not restricted to container management, so, for example,
it could be used to build APIs for an online shop or any other business-specific domain.
k8s.io/apimachinery/pkg/apis/meta/v1:
It contains many of the generic API types such as ObjectMeta, TypeMeta, GetOptions, and ListOptions
client-go¶
enable protobuf for native Kubernetes resource clients by modifying the REST config:
cfg, err := clientcmd.BuildConfigFromFlags("", *kubeconfig)
cfg.AcceptContentTypes = "application/vnd.kubernetes.protobuf, application/json"
cfg.ContentType = "application/vnd.kubernetes.protobuf"
clientset, err := kubernetes.NewForConfig(cfg)
client-go |
kubernetes |
|---|---|
v6.0 |
v1.9.0 |
v7.0 |
v1.10.0 |
v8.0 |
v1.11.0 |
v9.0 |
v1.12.0 |
v10.0 |
v1.13.0 |
v11.0 |
v1.14.0 |
v12.0 |
v1.15.0 |
v0.16.0 |
v1.16.0 |
v0.17.0 |
v1.17.0 |
Kubernetes Objects:
a Go interface called runtime.Object from the package k8s.io/apimachinery/pkg/runtime
1. Return and set the GroupVersionKind
2. Be deep-copied