# Gitops In Pmk

GitOps is a powerful mechanism for running your Kubernetes clusters and infrastructure at scale, across hybrid environments, with minimal operational burden.

PMK brings the benefits of GitOps to you using two mechanisms:

## Cluster Fleet Management & Security

Starting release 5.6, PMK has introduced a brand new mechanism for your cluster fleet management, by adding support for open source Arlon. For more information, read [auto$](https://github.com/platform9/pcd-docs-gitbook/blob/main/kubernetes/profile-engine-with-arlon/README.md)

## Cluster RBAC Profiles

{% hint style="warning" %}
**Important**

With the addition of Arlon starting PMK version 5.6, our goal is to utilize Arlon as a general purpose GitOps and cluster fleet management engine as part of PMK. Arlon is designed to cover end to end cluster definition, including cluster configuration, security & RBAC policies and add-ons. As such, the old built in mechanism for creating RBAC profiles will be deprecated in future, and the core functionality in that feature such as drift management will be moved to be capabilities of Arlon. Please keep this in mind as you make use of the PMK RBAC Profiles feature.
{% endhint %}

Profile engine is a built in component of PMK that enables administrators to manage user RBAC policies at scale across multiple clusters using PMK RBAC profiles. For more information about this capability, read [auto$](https://github.com/platform9/pcd-docs-gitbook/blob/main/kubernetes/rbac-profiles/README.md)


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