pyk8s 0.0.0a1

Kubernetes Python Pydantic Client

kubernetes-dynamic

This project aims to provide an easy interface over kubernetes API based on the official kubernetes package.

Basic syntax is very similar to kubectl.

client.pods.get() is the same as kubectl get pods

Example Usage

import kubernetes_dynamic as kd

client = kd.K8sClient()
pods: list[kd.models.V1Pod] = client.pods.get()
for pod in pods:
    print(pod.metadata.name)

Custom resources

import kubernetes_dynamic as kd

class MyModel(kd.models.ResourceItem):
    field: str


api: ResourceApi[MyModel] = kc.cl.get_api("mycustomresources", MyModel)
api: ResourceApi[MyModel] = kc.cl.get_api(kind="MyCustomResource", object_type=MyModel)
items: List[MyModel] = api.get()
item: Optional[MyModel] = api.get(name="exact-name")
if item:
    item.field = "modified"
    item.patch()
else:
    item = MyModel(metadata={"name": "exact-name", "namespace": "namespace-name"}, field="created", client=kd.cl)
    item.create()
    # item = MyModel(field="created")
    # item.metadata.name = "exact-name"

    # item = MyModel(metadata={"name": "exact-name"}, field="created")

    # item = MyModel(metadata=kd.models.V1Metadata(name="exact-name"), field="created")
    # item.create(namespace="namespace-name")

Models

We aim to provide pydantic models for all reasources.

Because the model names are exactly the same as in the kubernetes package, make sure you import the models from kubernetes_dynamic.models

• Proper type hinting
• All models are flexible (less dependent on kubernetes version):
  • accept extra values
  • all optional (type checker is tricked into assuming everything exists)
• Models created by queries have a reference to the client it was created by, manually creating models creates a default client(without arguments), or you can specify client manually.
• Base model contains common methods for all models:
  • refresh
  • patch
  • create
  • read
  • delete
  • is_ready
• additional features for specific models (just examples):
  • configmap:
    • from_path
  • ingress:
    • get_default_host
  • namespace:
    • annotate
    • ensure
  • pod:
    • get_restarts
    • exec
    • disk_usage
    • get_controller_type
    • get_env
  • secret
    • exists
    • set
    • decode

Subresources

Subresources are available under the main resource api objects:

• example: client.pods.exec

Work in progress

Expect breaking changes