python: Can't delete pods using Kubernetes API

I am using the python client library for the API. I am using the following code :

def delete_pod(name, namespace):
	api_instance = client.CoreV1Api()
	body = client.V1DeleteOptions()
	api_response = api_instance.delete_namespaced_pod(name, namespace, body)
	return api_response
print delete_pod('kargo-3','default')

But I get the following error :

2017-06-26 17:32:19,852 WARNING Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7f2e0ce059d0>: Failed to establish a new connection: [Errno 111] Connection refused',)': /api/v1/namespaces/default/pods/kargo-3
2017-06-26 17:32:19,853 WARNING Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7f2e0ce05b50>: Failed to establish a new connection: [Errno 111] Connection refused',)': /api/v1/namespaces/default/pods/kargo-3
2017-06-26 17:32:19,853 WARNING Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7f2e0ce05c90>: Failed to establish a new connection: [Errno 111] Connection refused',)': /api/v1/namespaces/default/pods/kargo-3
Traceback (most recent call last):
  File "utility_pods.py", line 41, in <module>
    print delete_pod('kargo-3','default')
  File "utility_pods.py", line 37, in delete_pod
    api_response = api_instance.delete_namespaced_pod(name, namespace, body)
  File "/home/piyush/.local/lib/python2.7/site-packages/kubernetes/client/apis/core_v1_api.py", line 9726, in delete_namespaced_pod
    (data) = self.delete_namespaced_pod_with_http_info(name, namespace, body, **kwargs)
  File "/home/piyush/.local/lib/python2.7/site-packages/kubernetes/client/apis/core_v1_api.py", line 9831, in delete_namespaced_pod_with_http_info
    collection_formats=collection_formats)
  File "/home/piyush/.local/lib/python2.7/site-packages/kubernetes/client/api_client.py", line 329, in call_api
    _return_http_data_only, collection_formats, _preload_content, _request_timeout)
  File "/home/piyush/.local/lib/python2.7/site-packages/kubernetes/client/api_client.py", line 153, in __call_api
    _request_timeout=_request_timeout)
  File "/home/piyush/.local/lib/python2.7/site-packages/kubernetes/client/api_client.py", line 406, in request
    body=body)
  File "/home/piyush/.local/lib/python2.7/site-packages/kubernetes/client/rest.py", line 265, in DELETE
    body=body)
  File "/home/piyush/.local/lib/python2.7/site-packages/kubernetes/client/rest.py", line 175, in request
    headers=headers)
  File "/home/piyush/.local/lib/python2.7/site-packages/urllib3/request.py", line 66, in request
    **urlopen_kw)
  File "/home/piyush/.local/lib/python2.7/site-packages/urllib3/request.py", line 87, in request_encode_url
    return self.urlopen(method, url, **extra_kw)
  File "/home/piyush/.local/lib/python2.7/site-packages/urllib3/poolmanager.py", line 321, in urlopen
    response = conn.urlopen(method, u.request_uri, **kw)
  File "/home/piyush/.local/lib/python2.7/site-packages/urllib3/connectionpool.py", line 678, in urlopen
    **response_kw)
  File "/home/piyush/.local/lib/python2.7/site-packages/urllib3/connectionpool.py", line 678, in urlopen
    **response_kw)
  File "/home/piyush/.local/lib/python2.7/site-packages/urllib3/connectionpool.py", line 678, in urlopen
    **response_kw)
  File "/home/piyush/.local/lib/python2.7/site-packages/urllib3/connectionpool.py", line 649, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "/home/piyush/.local/lib/python2.7/site-packages/urllib3/util/retry.py", line 388, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='localhost', port=443): Max retries exceeded with url: /api/v1/namespaces/default/pods/kargo-3 (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7f2e0ce0bd90>: Failed to establish a new connection: [Errno 111] Connection refused',))

At first I thought this was because I wasn’t providing kubernetes.client.configuration.api_key['authorization'] = 'YOUR_API_KEY'

But then I am able to use the APIs to get pod list node list, etc. They should also require authorization. Any clue?

About this issue

Original URL
State: closed
Created 7 years ago
Comments: 15 (4 by maintainers)

Most upvoted comments

Good afternoon. I’m new to Python and I’ve been working on a python script to remove a particular pod using the Kubernetes API, but it is not working. I was wondering if someone could take a look at my script to see what the problem could be. Currently I’m getting a SyntaxError: unexpected EOF while parsing, which means the code is processing all the way through. Below is my script:

from kubernetes import client, config

config.load_kube_config()

def delete_pod(self,name,namespace,body): core_v1 = client.CoreV1Api() delete_options = client.V1DeleteOptions() try: api_response = core_v1.delete_namespaced_pod( name=‘Stang-hi’, namespace=‘default’, body=delete_options) print(api_response)

I suspect you have a Python syntax problem in your script unrelated to the kubernetes package, but I’m not sure because the script you’ve posted isn’t formatted correctly. I have edited your script slightly and it seems to work for me.

from kubernetes import client, config

config.load_kube_config()


def delete_pod(name, namespace):
    core_v1 = client.CoreV1Api()
    delete_options = client.V1DeleteOptions()
    api_response = core_v1.delete_namespaced_pod(
        name=name,
        namespace=namespace,
        body=delete_options)
    print(api_response)


if __name__ == '__main__':
    delete_pod(name='Stang-hi', namespace='default')

JonathanRRogers on Feb 19, 2019

I got a similar error and was able to address this by using the following code to explicitly set api_client.

Here’s the code that works. This works when running inside a Docker container on my local machine talking to a remote k8s cluster.

k8s_config.load_kube_config()
api_client = k8s_client.ApiClient()
v1 = k8s_client.CoreV1Api(api_client)
print(v1.api_client.host)
print(v1.list_pod_for_all_namespaces())

Here’s the code that doesn’t work

k8s_config.load_kube_config()
v1 = k8s_client.CoreV1Api()
print(v1.api_client.host)
print(v1.list_pod_for_all_namespaces())

which produces output

https://localhost
...
MaxRetryError: HTTPSConnectionPool(host='localhost', port=443): Max retries exceeded with url: /api/v1/pods (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7f21a4a11fd0>: Failed to establish a new connection: [Errno 111] Connection refused',))

So the problem appears to be that api_client ends up using host ‘localhost’ for the K8s master which is incorrect; my k8s master is remote and has an actual ip address.

Interestingly I only hit this problem when running the above snippet inside a container on my local machine. However, I don’t hit this problem when running on my host machine. However, there’s no guarantee that my python environments are equivalent.

jlewi on Oct 25, 2017

have you tried loading config using config.load_kube_config? See examples.

mbohlool on Jun 27, 2017