OpenBao is an open-source secrets management and data protection project maintained by a community under open governance principles. Its core purpose is to store, manage, and distribute sensitive data—such as secrets, certificates, and keys—while ensuring that raw storage access alone does not expose secret material. OpenBao supports encrypted secret storage, dynamic on-demand secret generation for systems like Kubernetes and SQL databases, and centralized encryption services backed by centralized key management. Access control is identity-based through a unified ACL system that can broker access across providers and merge identities. Secrets are issued with leases and can be renewed via built-in APIs; when leases expire, OpenBao automatically revokes the secrets. The project also includes revocation capabilities capable of revoking individual secrets or entire trees of related secrets. OpenBao is provided under an OSI-approved open-source license and the project encourages contributions through published contribution guidelines and community collaboration. The project FAQ and governance information are managed by the OpenBao community.
OpenBao integrates with systems that require dynamic secrets such as Kubernetes and SQL databases. It can broker identities across cloud and service identity providers via a unified ACL model, enabling integrations with cloud platforms and identity providers for centralized access control.
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