Module discovery 

Service Discovery Module

This module provides service discovery integration using pingora-load-balancing’s ServiceDiscovery trait. Supports:

• Static: Fixed list of backends (default)
• DNS: Resolve backends from DNS A/AAAA records
• DNS SRV: Resolve backends from DNS SRV records
• Consul: Discover backends from Consul service catalog
• Kubernetes: Discover backends from Kubernetes endpoints
• File: Watch configuration file for backend changes

Example KDL Configuration

upstream "api" {
    discovery "dns" {
        hostname "api.example.com"
        port 8080
        refresh-interval 30
    }
}

upstream "backend" {
    discovery "consul" {
        address "http://localhost:8500"
        service "backend-api"
        datacenter "dc1"
        refresh-interval 10
        only-passing true
    }
}

upstream "k8s-service" {
    discovery "kubernetes" {
        namespace "default"
        service "my-service"
        port-name "http"
        refresh-interval 10
    }
}

Structs

ConsulDiscovery

Consul-based service discovery

DiscoveryManager

Service discovery manager

DnsDiscovery

DNS-based service discovery

KubernetesDiscovery

Kubernetes endpoint discovery

Enums

DiscoveryConfig

Service discovery configuration