使用kubernetes-client/java類庫,實現java對k8s api的調用
新建maven項目,引入依賴
我的k8s版本是1.5的,所以引入7.0.0的版本
<dependencies>
<dependency>
<groupId>io.kubernetes</groupId>
<artifactId>client-java</artifactId>
<version>7.0.0</version>
<scope>compile</scope>
</dependency>
</dependencies>
將k8s的config文件複製到項目下
通過ftp把~/.kube/config下載下來放到項目下面。
新建一個測試文件
import io.kubernetes.client.openapi.ApiClient;
import io.kubernetes.client.openapi.ApiException;
import io.kubernetes.client.openapi.Configuration;
import io.kubernetes.client.openapi.apis.CoreV1Api;
import io.kubernetes.client.openapi.models.V1Pod;
import io.kubernetes.client.openapi.models.V1PodList;
import io.kubernetes.client.util.ClientBuilder;
import io.kubernetes.client.util.KubeConfig;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
public class TestClient {
public static void main(String[] args) throws ApiException, IOException, ApiException {
//直接寫config path
String kubeConfigPath = "config";
//加載k8s, config
ApiClient client = ClientBuilder.kubeconfig(KubeConfig.loadKubeConfig(new FileReader(kubeConfigPath))).build();
//將加載config的client設置爲默認的client
Configuration.setDefaultApiClient(client);
//創建一個api
CoreV1Api api = new CoreV1Api();
//打印所有的pod
V1PodList list = api.listPodForAllNamespaces(null,null,null,null,null,null,null,
null,null);
for (V1Pod item : list.getItems()) {
System.out.println(item);
}
}
}