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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.provision.lb;
import ai.vespa.http.DomainName;
import com.google.common.collect.ImmutableSortedSet;
import com.yahoo.config.provision.CloudAccount;
import com.yahoo.config.provision.LoadBalancerSettings;
import java.util.Objects;
import java.util.Optional;
import java.util.Set;
/**
* Represents a load balancer instance. This contains the fields that are owned by a {@link LoadBalancerService} and is
* immutable.
*
* @author mpolden
*/
public class LoadBalancerInstance {
private final Optional<DomainName> hostname;
private final Optional<String> ipAddress;
private final Optional<DnsZone> dnsZone;
private final Set<Integer> ports;
private final Set<String> networks;
private final Set<Real> reals;
private final LoadBalancerSettings settings;
private final Optional<PrivateServiceId> serviceId;
private final CloudAccount cloudAccount;
public LoadBalancerInstance(Optional<DomainName> hostname, Optional<String> ipAddress, Optional<DnsZone> dnsZone,
Set<Integer> ports, Set<String> networks, Set<Real> reals, LoadBalancerSettings settings,
Optional<PrivateServiceId> serviceId, CloudAccount cloudAccount) {
this.hostname = Objects.requireNonNull(hostname, "hostname must be non-null");
this.ipAddress = Objects.requireNonNull(ipAddress, "ip must be non-null");
this.dnsZone = Objects.requireNonNull(dnsZone, "dnsZone must be non-null");
this.ports = ImmutableSortedSet.copyOf(requirePorts(ports));
this.networks = ImmutableSortedSet.copyOf(Objects.requireNonNull(networks, "networks must be non-null"));
this.reals = ImmutableSortedSet.copyOf(Objects.requireNonNull(reals, "targets must be non-null"));
this.settings = Objects.requireNonNull(settings, "settings must be non-null");
this.serviceId = Objects.requireNonNull(serviceId, "private service id must be non-null");
this.cloudAccount = Objects.requireNonNull(cloudAccount, "cloudAccount must be non-null");
if (hostname.isEmpty() == ipAddress.isEmpty()) {
throw new IllegalArgumentException("Exactly 1 of hostname=%s and ipAddress=%s must be set".formatted(
hostname.map(DomainName::value).orElse("<empty>"), ipAddress.orElse("<empty>")));
}
}
/** Fully-qualified domain name of this load balancer. This hostname can be used for query and feed */
public Optional<DomainName> hostname() {
return hostname;
}
/** IP address of this load balancer */
public Optional<String> ipAddress() {
return ipAddress;
}
/** ID of the DNS zone associated with this */
public Optional<DnsZone> dnsZone() {
return dnsZone;
}
/** Listening port(s) of this load balancer */
public Set<Integer> ports() {
return ports;
}
/** Networks (CIDR blocks) of this load balancer */
public Set<String> networks() {
return networks;
}
/** Real servers behind this load balancer */
public Set<Real> reals() {
return reals;
}
/** Static user-configured settings of this load balancer */
public LoadBalancerSettings settings() {
return settings;
}
/** ID of any private endpoint service configured for this load balancer. */
public Optional<PrivateServiceId> serviceId() {
return serviceId;
}
/** Cloud account of this load balancer */
public CloudAccount cloudAccount() {
return cloudAccount;
}
/** Returns a copy of this with reals set to given reals */
public LoadBalancerInstance withReals(Set<Real> reals) {
return new LoadBalancerInstance(hostname, ipAddress, dnsZone, ports, networks, reals, settings, serviceId, cloudAccount);
}
public LoadBalancerInstance withServiceId(PrivateServiceId serviceId) {
return new LoadBalancerInstance(hostname, ipAddress, dnsZone, ports, networks, reals, settings, Optional.of(serviceId), cloudAccount);
}
private static Set<Integer> requirePorts(Set<Integer> ports) {
Objects.requireNonNull(ports, "ports must be non-null");
if (ports.isEmpty()) {
throw new IllegalArgumentException("ports must be non-empty");
}
if (!ports.stream().allMatch(port -> port >= 1 && port <= 65535)) {
throw new IllegalArgumentException("all ports must be >= 1 and <= 65535");
}
return ports;
}
}
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