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WASP Eureka

Asynchronous Naive Eureka client for the Netflix OSS/Spring Cloud bundled eureka stack.

Installation

Note: this supports Python 3.5+

.. code-block:: bash

$ pip install wasp-eureka

If you want to just run it standalone, include those dependencies:

.. code-block:: bash

$ pip install wasp-eureka[standalone]

Usage

The surface area of this module is pretty small, effectively you just need to care about the wasp_eureka.EurekaClient class and its methods:

.. code-block:: python

import asyncio

from wasp_eureka import EurekaClient

# no spaces or underscores, this needs to be url-friendly
app_name = 'test-app'

port = 8080
# This needs to be an IP accessible by anyone that
# may want to discover, connect and/or use your service.
ip = '127.0.0.1'
my_eureka_url = 'https://service-discovery.mycompany.com/eureka'
loop = asyncio.get_event_loop()

eureka = EurekaClient(app_name, port, ip, eureka_url=my_eureka_url,
                      loop=loop)

async def main():
    # Presuming you want your service to be available via eureka
    result = await eureka.register()
    assert result, 'Unable to register'

    # You need to provide a heartbeat to renew the lease,
    # otherwise the eureka server will expel the service.
    # The default is 90s, so any time <90s is ok
    while True:
        await asyncio.sleep(67)
        await eureka.renew()

loop.run_until_complete(main())

Creating a Release

Bumpversion_ provides a simplified way to manage versioning, to check the dry run before running it:

.. code-block:: bash

$ bumpversion [patch,minor,major] --dry-run --verbose

.. code-block:: bash

$ bumpversion patch

.. _APScheduler: https://apscheduler.readthedocs.io/en/latest/ .. _Bumpversion: https://pypi.python.org/pypi/bumpversion