72 lines
2.4 KiB
Python
72 lines
2.4 KiB
Python
#!/usr/bin/env python
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import time
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from libcloud.loadbalancer.base import Member, Algorithm
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from libcloud.loadbalancer.types import Provider, State
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from libcloud.loadbalancer.providers import get_driver
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def main():
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cls = get_driver(Provider.RACKSPACE)
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driver = cls('username', 'api key', region='ord')
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balancers = driver.list_balancers()
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print(balancers)
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# creating a balancer which balances traffic across two
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# nodes: 192.168.86.1:80 and 192.168.86.2:8080. Balancer
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# itself listens on port 80/tcp
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new_balancer_name = 'testlb' + os.urandom(4).encode('hex')
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members = (Member(None, '192.168.86.1', 80),
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Member(None, '192.168.86.2', 8080))
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new_balancer = driver.create_balancer(name=new_balancer_name,
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algorithm=Algorithm.ROUND_ROBIN,
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port=80,
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protocol='http',
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members=members)
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print(new_balancer)
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# wait for balancer to become ready
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# NOTE: in real life code add timeout to not end up in
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# endless loop when things go wrong on provider side
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while True:
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balancer = driver.get_balancer(balancer_id=new_balancer.id)
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if balancer.state == State.RUNNING:
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break
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print('sleeping for 30 seconds for balancers to become ready')
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time.sleep(30)
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# fetch list of members
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members = balancer.list_members()
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print(members)
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# remove first member
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balancer.detach_member(members[0])
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# remove the balancer
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driver.destroy_balancer(new_balancer)
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if __name__ == '__main__':
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main()
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