Description: Horizon access control is a fundamental tool within the OpenStack ecosystem, designed to efficiently manage user permissions and roles accessing cloud resources. This system allows administrators to define who can access what resources, ensuring that only authorized users can perform specific actions. Through an intuitive graphical interface, Horizon facilitates the management of roles and access policies, which is crucial for maintaining data security and integrity in cloud environments. Additionally, access control integrates with other OpenStack components, such as Keystone, which handles authentication and identity management. This allows for centralized and consistent management of permissions, which is especially important in organizations where multiple users and teams interact with the same resources. In summary, Horizon access control not only optimizes user management but also reinforces the overall security of the OpenStack environment, ensuring that resources are used appropriately and in accordance with established policies.