hapool 0.0.1

A handy, customizable python library that provides high availability for multiple node connections

pyhapool

A handy, customizable python library that provides high availability(including failover etc.) for multiple node connections.

Install

pip install hapool

QuickStart

For example, we need to connect to multiple kubernetes apiserver.

from pyhapool import HAEndpointPool
from kubernetes.client import ApiClient

# got configuration list which contain multiple apiservers
configuration_list = [...]
ha_pool = HAEndpointPool.from_list(configuration_list)


class HAApiClient(ApiClient):

    def call_api(self, *args, **kwargs):
        while ha_pool.data:
            with ha_pool.get_endpoint() as configuration:
                self.configuration = configuration
                return super().call_api(*args, **kwargs)

If any apiserver became unavailable (may raise some exceptions), ha_pool would switch to next endpoint until any available one been chosen(work like upstream in nginx).

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more documentation is coming.