Hi,

You could set these values in a custom Composer like below. For each server set the right value in the appsettings.json file.

using System.Linq;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Umbraco.Cms.Core.Composing;
using Umbraco.Cms.Core.DependencyInjection;
using Umbraco.Cms.Infrastructure.DependencyInjection;
using Umbraco.Extensions.Infrastructure.ServerRoleAccessors;

namespace Umbraco.Extensions.Composers
{
    public class ServerRegistrarComposer : IComposer
    {
        public void Compose(IUmbracoBuilder builder)
        {
            var config = builder.Services.BuildServiceProvider().GetService<IConfiguration>();

            if (config.GetChildren().Any(item => item.Key.InvariantEquals("custom")))
            {
                if (config.GetValue<bool>("Custom:IsSchedulingPublisherServer"))
                {
                    // This should be executed on your single `SchedulingPublisher` server
                    builder.SetServerRegistrar<SchedulingPublisherServerRoleAccessor>();
                }
                else
                {
                    // This should be executed on your `Subscriber` servers
                    builder.SetServerRegistrar<SubscriberServerRoleAccessor>();
                }
            }
        }
    }
}

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