Function build_service 

pub fn build_service(
    name: &str,
    namespace: &str,
    instance: &Bind9Instance,
    custom_config: Option<&ServiceConfig>,
) -> Service

Builds a Kubernetes Service for exposing BIND9 DNS ports.

Creates a Service exposing:

• TCP port 53 (for zone transfers and large queries)
• UDP port 53 (for standard DNS queries)
• HTTP port 80 (mapped to bindcar API port)

Custom service configuration includes both spec fields and metadata annotations. These are merged with defaults, allowing partial customization while maintaining safe defaults for unspecified fields.

Arguments

• name - Name for the Service
• namespace - Kubernetes namespace
• instance - The Bind9Instance that owns this Service
• custom_config - Optional custom ServiceConfig with spec and annotations to merge with defaults

Returns

A Kubernetes Service resource ready for creation/update

Example

use bindy::bind9_resources::build_service;
use bindy::crd::{Bind9Instance, ServiceConfig};
use std::collections::BTreeMap;

let mut annotations = BTreeMap::new();
annotations.insert("metallb.universe.tf/address-pool".to_string(), "my-pool".to_string());

let config = ServiceConfig {
    annotations: Some(annotations),
    spec: None,
};

let service = build_service("dns-primary", "dns-system", &instance, Some(&config));