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README
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Garm
What is Garm
Garm implements the Kubernetes authorization webhook interface to provide access control on your K8s resources with Athenz RBAC policy. It allows flexible resource mapping from K8s resources to Athenz ones, mutli-tenancy, and black/white list.
By default, Garm replies the native Kubernetes authentication for authorization. However, it also supports the Kubernetes authentication webhook. Using the authentication hook requires Athenz to be able to sign tokens for users.
Requires go 1.18 or later.
Use Case
Authorization
- K8s webhook request (SubjectAccessReview) (Webhook Mode - Kubernetes)
- the K8s API server wants to know if the user is allowed to do the requested action
- Athenz RBAC request (Athenz)
- Athenz server contains the user authorization information for access control
- ask Athenz server is the user action is allowed based on pre-configured policy
Garm convert the K8s request to Athenz request based on the mapping rules in config.yaml (example).
P.S. It is just a sample deployment solution above. Garm can work on any environment as long as it can access both the API server and the Athenz server.
Docker
$ docker pull docker.io/athenz/garm
Usage
Contributor License Agreement
This project requires contributors to agree to a Contributor License Agreement (CLA).
Note that only for contributions to the garm repository on the GitHub, the contributors of them shall be deemed to have agreed to the CLA without individual written agreements.
About releases
- Releases
Documentation
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There is no documentation for this package.
Source Files
Directories
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| Path | Synopsis |
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Package config defines all configuration of Garm.
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Package config defines all configuration of Garm. |
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Package handler provides an interface to handle K8s webhook requests, including authentication and authorization requests.
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Package handler provides an interface to handle K8s webhook requests, including authentication and authorization requests. |
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Package log manages the interface for Garm application logger.
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Package log manages the interface for Garm application logger. |
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Package router routes HTTP requests to corresponding handler.
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Package router routes HTTP requests to corresponding handler. |
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Package service manages the main logic of Garm.
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Package service manages the main logic of Garm. |
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Package usecase provides the Garm daemon implementation.
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Package usecase provides the Garm daemon implementation. |