Cloud Custodian

An OSS Project Sponsored by Capital One


The Path to a Well Managed Cloud

Cloud Custodian enables users to be well managed in the cloud. The simple YAML DSL allows you to easily define rules to enable a well-managed cloud infrastructure, that's both secure and cost optimized. It consolidates many of the ad-hoc scripts organizations have into a lightweight and flexible tool, with unified metrics and reporting.

Real-time Compliance

Besides just providing reports of issues, Custodian can actively enforce the security policies you define. 

Cost Management

Setup off-hours to save you money, by turning-off resources when they're not being used. Garbage collect unused resources by looking into utilization metrics.

Run Anywhere

Custodian can be run locally, on an instance, or Serverless in AWS Lambda.

Open Source

Cloud Custodian is open source and free for everyone to use.

Simple DSL

Use Custodian to build complex workflows or simple queries, millions of policies can be constructed using our easy to read DSL.