boto3 auto scaling

autoscale.py

# coding: utf-8
from __future__ import absolute_import, print_function, unicode_literals

import session


class AutoScaling(object):

    def __init__(self, name):
        self._client = session.get(name).client('autoscaling')

    def get_schedule(self, **kwargs):
        response = self._client.describe_scheduled_actions(**kwargs)
        return response['ScheduledUpdateGroupActions']

autoscale2.py

# coding: utf-8
from __future__ import absolute_import, print_function, unicode_literals

import threading

import boto3

__all__ = ["get"]

_LOCK = threading.Lock()
_CLIENTS = {}


class AutoScaling(object):

    def __init__(self, name):
        self._client = boto3.Session(profile_name=name).client('autoscaling')

    def get_schedule(self, **kwargs):
        response = self._client.describe_scheduled_actions(**kwargs)
        return response['ScheduledUpdateGroupActions']


def get(name):
    global _CLIENTS
    if name in _CLIENTS:
        return _CLIENTS[name]

    return _set_and_get(name)


def _set_and_get(name):
    global _LOCK
    global _CLIENTS

    with _LOCK:
        if name in _CLIENTS:
            return _CLIENTS[name]

        result = _CLIENTS[name] = AutoScaling(name)

    return result

session.py

# coding: utf-8
from __future__ import absolute_import, print_function, unicode_literals

import threading

import boto3


_LOCK = threading.Lock()
_SESSIONS = {}


def get(name):
    if name in _SESSIONS:
        return _SESSIONS[name]
    return _set_and_get(name)


def _set_and_get(name):
    with _LOCK:
        if name in _SESSIONS:
            return _SESSIONS[name]

        result = _SESSION[name] = boto3.Session(profile_name=name)
    return result