Role-based access controls (RBAC) are a method of restricting access to resources based on the roles of individual users within an organization. RBAC allows administrators to assign permissions to roles, rather than to specific users, and then assign users to those roles. This simplifies the management of access rights and reduces the risk of unauthorized or excessive access. RBAC is especially important for ensuring adequate restriction on the number of people who can access the pipeline production environment, which is the final stage of the continuous integration and continuous delivery (CI/CD) process where code is deployed to the end-users. Access to the production environment should be limited to only those who are responsible for deploying, monitoring, and maintaining the code, such as production engineers, release managers, or site reliability engineers. Developers, testers, or other stakeholders should not have access to the production environment, as this could compromise the security, quality, and performance of the code. RBAC can help enforce this separation of duties and responsibilities by defining different roles for different pipeline stages and granting appropriate permissions to each role. For example, developers may have permission to create, edit, and test code in the development pipeline, but not to deploy or modify code in the production pipeline. Conversely, production engineers may have permission to deploy, monitor, and troubleshoot code in the production pipeline, but not to create or edit code in the development pipeline. RBAC can also help implement the principle of least privilege, which states that users should only have the minimum level of access required to perform their tasks. This reduces the attack surface and minimizes the potential damage in case of a breach or misuse. RBAC can be configured at different levels of granularity, such as at the organization, project, or object level, depending on the needs and complexity of the organization. RBAC can also leverage existing identity and access management (IAM) solutions, such as Azure Active Directory or AWS IAM, to integrate with cloud services and applications.
References:
Set pipeline permissions - Azure Pipelines
Azure DevOps: Access, Roles and Permissions
Cloud Computing — What IT Auditors Should Really Know
