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Library to manage configuration using Zookeeper, Etcd, Consul

Project description

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distconfig

Library to manage distributed configuration using either ZooKeeper or Etcd or Consul.

Rational

When you have to manage configuration of a given services that are distributed across nodes, you may want to consider using either one of the distributed configuration managers e.g. zookeeper, etcd, consul …, this library goal is to give developers an easy access to configuration stored in the previous backends.

Installation:

To use ZooKeeper as backend you should install distconfig using

$ pip install distconfig[zookeeper]

with etcd:

$ pip install distconfig[etcd]

with consul:

$ pip install distconfig[consul]

Usage:

Example using zookeeper as a backend

from kazoo import client

from distconfig import Proxy

client = client.KazooClient()
# The user must call ``KazooClient.start()`` before using this particular
# backend
client.start()

proxy = Proxy.configure(
    'distconfig.backends.zookeeper.ZooKeeperBackend',
    client=client,
)

# config is a read only mapping-like object.
config = proxy.get_config('/distconfig/service_name/config')

print config['key']

# Getting nested values works by supplying key seperated by '/' char.
print config['key/inner']

# You can assert key value type by using typed get function e.g.
# get_int, get_float, get_unicode, get_bytes ... .
print config.get_int('key/inner/int_key')

# Getting a inner config.
print config.get_config('key/inner/dict_key')

Development:

Start by installing dependencies

$ pip install -r requirements/dev.txt requirements/base.txt

To run unit test use tox

$ tox

To run integration test, we recommend you to install docker and then run

$ ./run-tests.sh

The above script will setup docker container for each of the backend and run the integration tests on them.

TODO:

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