It's possible to talk to k8s's API, for instance talking to CoreV1Api:
from kubernetes import client, config
v1 = client.CoreV1Api()
k8s_corev1_api = client.CoreV1Api()
k8s_corev1_api.read_namespaced_service("myservice", 'default')If I add an operator to k8s, for instance redis-operator, this operator adds an API endpoint redisfailover to k8s. Is it possible to interact with it using native k8s Python client?
Yes, redisfailover is actually a Custom Resource, created by the Redis Operator. You can interact with custom resources with the CustomObjectsApi, very similarly to your above example:
api = client.CustomObjectsApi()
api.get_namespaced_custom_object(
group='databases.spotahome.com',
version='v1',
namespace='default',
plural='redisfailovers',
name='myredisfailover'
)