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7.8K Stars 1.1K Forks Apache License 2.0 800 Commits 45 Opened issues


Tools for keeping your cloud operating in top form. Chaos Monkey is a resiliency tool that helps applications tolerate random instance failures.

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The Simian Army project is no longer actively maintained. Some of the Simian Army functionality has been moved to other Netflix projects:

  • A newer version of Chaos Monkey is available as a standalone service.
  • Swabbie is a new standalone service that will replace the functionality provided by Janitor Monkey.
  • Conformity Monkey functionality will be rolled into other Spinnaker backend services.


The Simian Army is a suite of tools for keeping your cloud operating in top form. Chaos Monkey, the first member, is a resiliency tool that helps ensure that your applications can tolerate random instance failures


Please see the wiki.


Simian Army Google group

Because the project is no longer maintained, there is a good chance that nobody will be able to answer a support question.


Copyright 2012-2016 Netflix, Inc.

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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