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ansible-collections / kubernetes.core

The collection includes a variety of Ansible content to help automate the management of applications in Kubernetes and OpenShift clusters, as well as the provisioning and maintenance of clusters themselves.
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using for wait the watch parameter #633

Open genofire opened 1 year ago

genofire commented 1 year ago
SUMMARY

The Kubernetes API endpoint could be rate limited, so it is not a good pattern to send multiple requests in short time to check if the pod is ready. Therefore the API has the parameter wait which sends a stream of json results to detect changes and/or pod readiness: https://kubernetes.io/docs/reference/using-api/api-concepts/#efficient-detection-of-changes

ISSUE TYPE
COMPONENT NAME

k8s_info

ACTUAL RESULTS
Failed to get client due to HTTPSConnectionPool(host='controll-plane.on.my.cluster', port=1337): Max retries exceeded with url: /version (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7f93ebd186d8>: Failed to establish a new connection: [Errno 111] Connection refused',)

Here is the Denial of Service function: clock(timeout, sleep)

https://github.com/ansible-collections/kubernetes.core/blob/9e9962bc6cd74003fa4a8b01ad8eb5104bb063fb/plugins/module_utils/k8s/waiter.py#L175-L196

gravesm commented 1 year ago

@genofire Thank you for the suggestion.