Sealed Secrets is a Kubernetes security tool that lets you encrypt Secret manifests into SealedSecret resources that are safe to store in version control systems, including public repositories.
It works through a cluster-side controller and the kubeseal command-line utility, allowing teams to keep sensitive configuration in GitOps workflows while ensuring only the controller running in the target cluster can decrypt and recreate the underlying Kubernetes Secret.
This is free and open source software.
Key Features
- Uses a Kubernetes controller together with the kubeseal command-line client to create and manage one-way encrypted secrets.
- Supports strict, namespace-wide, and cluster-wide sealing scopes for controlling where secrets can be unsealed.
- Allows offline sealing by fetching and reusing the controller certificate, including certificate URLs for automated workflows.
- Lets SealedSecret resources template generated Secret metadata, annotations, labels, type, immutability, and data.
- Can validate sealed secrets, merge new encrypted values into existing sealed secret files, and patch or manage existing Kubernetes secrets.
- Supports sealing key renewal and re-encryption workflows to help maintain long-term secret management practices.
Website: github.com/bitnami-labs/sealed-secrets
Support:
Developer: Bitnami Labs
License: Apache License 2.0
Sealed Secrets is written in Go. Learn Go with our recommended free books and free tutorials.
Related Software
| Secrets Management | |
|---|---|
| OpenBao | Manage, store, and distribute sensitive data |
| Vault | Tool for securely accessing secrets |
| Infisical | Secrets management, PKI, and SSH access |
| fnox | Encrypted/remote secret manager |
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