Working with Kubernetes using Python - Part 01 - List contexts

Following code snipet uses Python client for the kubernetes API and it takes the default kubeconfig file, list the contexts, and active context. 

kubectl commands: 

kubectl config get-contexts
kubectl config current-context

Code: 

	# prerequisite: pip3 install kubernetes
	from kubernetes import client, config
	def main():
	"""
	This function will use the default kubeconfig file, list the contexts, and active context.
	"""
	contexts, active_context = config.list_kube_config_contexts()
	if not contexts:
	print("Cannot find any context in kube-config file.")
	return
	contexts = [context["name"] for context in contexts]
	active_index = contexts.index(active_context["name"])
	active_context = active_context["name"]
	print(f"List of contexts: {contexts}")
	print(f"Active context index is: {active_index}")
	print(f"Actice context name is: {active_context}")
	if __name__ == "__main__":
	main()

view raw list_contexts.py hosted with ❤ by GitHub

Note: If you want to use a specific kubeconfig file, instead of  

contexts, active_context = config.list_kube_config_contexts() 

you can use  

contexts, active_context = config.list_kube_config_contexts(config_file="path-to-kubeconfig")

Reference:

https://github.com/kubernetes-client/python

Hope it was useful. Cheers!