forked from spring-cloud/spring-cloud-kubernetes
/
KubernetesEndpointsServerList.java
96 lines (86 loc) · 3.18 KB
/
KubernetesEndpointsServerList.java
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/*
* Copyright 2013-2019 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.cloud.kubernetes.ribbon;
import java.util.ArrayList;
import java.util.List;
import com.netflix.loadbalancer.Server;
import io.fabric8.kubernetes.api.model.EndpointAddress;
import io.fabric8.kubernetes.api.model.EndpointPort;
import io.fabric8.kubernetes.api.model.EndpointSubset;
import io.fabric8.kubernetes.api.model.Endpoints;
import io.fabric8.kubernetes.client.KubernetesClient;
import io.fabric8.kubernetes.client.utils.Utils;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* the KubernetesEndpointsServerList description.
*
* @author wuzishu
*/
public class KubernetesEndpointsServerList extends KubernetesServerList {
private static final Log LOG = LogFactory.getLog(KubernetesEndpointsServerList.class);
/**
* Instantiates a new Kubernetes endpoints server list.
* @param client the client
* @param properties the properties
*/
KubernetesEndpointsServerList(KubernetesClient client,
KubernetesRibbonProperties properties) {
super(client, properties);
}
@Override
public List<Server> getUpdatedListOfServers() {
List<Server> result = new ArrayList<>();
Endpoints endpoints = StringUtils.isNotBlank(this.getNamespace())
? this.getClient().endpoints().inNamespace(this.getNamespace())
.withName(this.getServiceId()).get()
: this.getClient().endpoints().withName(this.getServiceId()).get();
if (endpoints != null) {
if (LOG.isDebugEnabled()) {
LOG.debug(String.format(
"Found [%d] endpoints in l [%s] for name [%s] and portName [%s]",
endpoints.getSubsets().size(),
endpoints.getMetadata().getNamespace(), this.getServiceId(),
this.getPortName()));
}
for (EndpointSubset subset : endpoints.getSubsets()) {
if (subset.getPorts().size() == 1) {
EndpointPort port = subset.getPorts().get(getFIRST());
for (EndpointAddress address : subset.getAddresses()) {
result.add(new Server(address.getIp(), port.getPort()));
}
}
else {
for (EndpointPort port : subset.getPorts()) {
if (Utils.isNullOrEmpty(this.getPortName())
|| this.getPortName().endsWith(port.getName())) {
for (EndpointAddress address : subset.getAddresses()) {
result.add(new Server(address.getIp(), port.getPort()));
}
}
}
}
}
}
if (result.isEmpty()) {
LOG.warn(String.format(
"Did not find any endpoints in ribbon in namespace [%s] for name [%s] and portName [%s]",
this.getNamespace(), this.getServiceId(), this.getPortName()));
}
return result;
}
}