Nacos Discovery Starter Configurations

 

 

The following shows the other configurations of the starter of Nacos Discovery:

Configuration	Key	Default Value	Description
Server address	spring.cloud.nacos.discovery.server-addr		IP and port of the Nacos Server listener
Service name	spring.cloud.nacos.discovery.service	${spring.application.name}	Name the current service
Weight	spring.cloud.nacos.discovery.weight	1	Value range: 1 to 100. The bigger the value, the greater the weight
Network card name	spring.cloud.nacos.discovery.network-interface		If the IP address is not specified, the registered IP address is the IP address of the network card. If this is not specified either, the IP address of the first network card will be used by default.
Registered IP address	spring.cloud.nacos.discovery.ip		Highest priority
Registered port	spring.cloud.nacos.discovery.port	-1	Will be detected automatically by default. Do not need to be configured.
Namespace	spring.cloud.nacos.discovery.namespace		A typical scenario is to isolate the service registration for different environment, such as resource (configurations, services etc.) isolation between testing and production environment
AccessKey	spring.cloud.nacos.discovery.access-key		Alibaba Cloud account accesskey
SecretKey	spring.cloud.nacos.discovery.secret-key		Alibaba Cloud account secretkey
Metadata	spring.cloud.nacos.discovery.metadata		You can define some of the metadata for your services in the Map format
Log file name	spring.cloud.nacos.discovery.log-name
Cluster Name	spring.cloud.nacos.discovery.cluster-name	DEFAULT	Cluster name of Nacos
Endpoint	spring.cloud.nacos.discovery.endpoint		The domain name of a certain service in a specific region. You can retrieve the server address dynamically with this domain name
Integrate Ribbon or not	ribbon.nacos.enabled	true	Set to true in most cases
Enable Nacos Watch	spring.cloud.nacos.discovery.watch.enabled	true	set to false to close watch

 

NacosDiscoveryProperties

@ConfigurationProperties("spring.cloud.nacos.discovery")
public class NacosDiscoveryProperties {

}

 

处理ip逻辑

@PostConstruct
public void init() throws SocketException {

	metadata.put(PreservedMetadataKeys.REGISTER_SOURCE, "SPRING_CLOUD");
	if (secure) {
		metadata.put("secure", "true");
	}

	serverAddr = Objects.toString(serverAddr, "");
	if (serverAddr.endsWith("/")) {
		serverAddr = serverAddr.substring(0, serverAddr.length() - 1);
	}
	endpoint = Objects.toString(endpoint, "");
	namespace = Objects.toString(namespace, "");
	logName = Objects.toString(logName, "");

	if (StringUtils.isEmpty(ip)) {
		// traversing network interfaces if didn't specify a interface
		if (StringUtils.isEmpty(networkInterface)) {
			ip = inetUtils.findFirstNonLoopbackHostInfo().getIpAddress();
		}
		else {
			NetworkInterface netInterface = NetworkInterface
					.getByName(networkInterface);
			if (null == netInterface) {
				throw new IllegalArgumentException(
						"no such interface " + networkInterface);
			}

			Enumeration<InetAddress> inetAddress = netInterface.getInetAddresses();
			while (inetAddress.hasMoreElements()) {
				InetAddress currentAddress = inetAddress.nextElement();
				if (currentAddress instanceof Inet4Address
						&& !currentAddress.isLoopbackAddress()) {
					ip = currentAddress.getHostAddress();
					break;
				}
			}

			if (StringUtils.isEmpty(ip)) {
				throw new RuntimeException("cannot find available ip from"
						+ " network interface " + networkInterface);
			}

		}
	}

	this.overrideFromEnv(environment);
}