public WorkerRole AddAzureCacheWorkerRoleProcess(string workerRoleName, int instances, string rootPath)
        {
            // Create cache worker role.
            Action<string, RoleInfo> cacheWorkerRoleAction = CacheConfigurationFactory.GetCacheRoleConfigurationAction(
                new AzureTool().AzureSdkVersion);

            CloudServiceProject cloudServiceProject = new CloudServiceProject(rootPath, null);

            RoleInfo genericWorkerRole = cloudServiceProject.AddWorkerRole(
                Path.Combine(Resources.GeneralScaffolding, RoleType.WorkerRole.ToString()),
                workerRoleName,
                instances);

            // Dedicate the worker role for caching.
            cacheWorkerRoleAction(cloudServiceProject.Paths.RootPath, genericWorkerRole);

            cloudServiceProject.Reload();
            WorkerRole cacheWorkerRole = cloudServiceProject.Components.GetWorkerRole(genericWorkerRole.Name);

            // Write output
            SafeWriteOutputPSObject(
                cacheWorkerRole.GetType().FullName,
                Parameters.CacheWorkerRoleName, genericWorkerRole.Name,
                Parameters.Instances, genericWorkerRole.InstanceCount
                );

            return cloudServiceProject.Components.GetWorkerRole(workerRoleName);
        }