NGINX Unit 1.16.0 released, dynamic web application server

NGINX Unit 1.16.0 has been released, this version adds two new functions: fallbackrouting and round-robin load balancing by configuring upstreams. Developers familiar with nginx should be familiar with these two functions.

• fallbackRouting (fallback Routing Option) : When a static file cannot be delivered for some reason, an alternative routing action can be defined.
• Poll scheduling load balancing by configuring upstreams: The configuration part where the upstreams object resides can serve as a peer for listeners, applications, routing, and setting objects. upstream is an abstraction that groups multiple servers into a single logical entity to simplify management and monitoring. Normally, you can distribute workloads, assign different roles in upstream, and fine-tune the properties of a single server, but from the outside, it looks and behaves like a single entity.

In NGINX Unit, upstreams are configured as follows:

{
    "listeners": {
        "*:80": {
            "pass": "upstreams/rr-lb"
        }
    },

    "upstreams": {
        "rr-lb": {
            "servers": {
                "192.168.0.100:8080": { },
                "192.168.0.101:8080": {
                    "weight": 2
                }
            }
        }
    }
}

For detailed updates, please see the announcement
https://www.nginx.com/blog/nginx-unit-1-16-0-now-available/