我有一个小问题。我正在通过 JAVA SDK 启动一个任务(docker 容器)。这很好用。
但是现在我想通过SDK获取公网IP,不知道怎么做
这是我迄今为止现有的代码。
RunTaskRequest request = new RunTaskRequest()
.withCluster("JuiceShop")
.withTaskDefinition("startJuiceShop:1")
.withNetworkConfiguration(networkConfiguration)
.withLaunchType("FARGATE");
RunTaskResult response = client.runTask(request);
响应包含容器,但网络设备尚未连接。有没有简单的方法获得公共IPV4?
您将需要进行多个 AWS API 调用才能获取公共 IPv4 地址。步骤如下。
示例 -
AmazonECS client = AmazonECSClientBuilder.standard().build();
DescribeTasksRequest request = new DescribeTasksRequest().withTasks("c5cba4eb-5dad-405e-96db-71ef8eefe6a8");
DescribeTasksResult response = client.describeTasks(request);
“附件”:[ { “id”:“xxxxx-d02c-4a9d-ae79-xxxxxxx”, "type": "弹性网络接口", “状态”:“已连接”, “细节”: [ { "名称": "子网ID", “值”:“子网-xxxxx” }, { "名称": "网络接口ID", “值”:“eni-e5aa89a3” }, { "名称": "mac地址", “值”:“xxxxx” }, { “名称”:“私有IPv4地址”, “值”:“172.31.94.215” } ] } ],
示例 -
AmazonEC2 client = AmazonEC2ClientBuilder.standard().build();
DescribeNetworkInterfacesRequest request = new DescribeNetworkInterfacesRequest().withNetworkInterfaceIds("eni-e5aa89a3");
DescribeNetworkInterfacesResult response = client.describeNetworkInterfaces(request);
{ “网络接口”:[ { “协会”: { "IpOwnerId": "亚马逊", "PublicDnsName": "ec2-52-xx-xx-xx.compute-1.amazonaws.com", “公共IP”:“52.xx.xx.xx” } ] }
任务元数据端点将允许您获取有关容器的网络信息。如果您要附加 EIP,则必须使用容器中的 IPv4 来通过 SDK 查找 EIP。
使用 AWS Java SDK 版本 1.12.686 (2024),您应该执行下述操作来获取与正在运行的任务关联的公共 IP:
private static final String API_ACCESS_KEY = "AK........";
private static final String API_PASSWORD_KEY = "xxxx.....";
AmazonECS ecsClient = AmazonECSClientBuilder.standard()
.withCredentials(new AWSStaticCredentialsProvider(getAwsCredential(API_ACCESS_KEY, API_PASSWORD_KEY)))
.withRegion(DEFAULT_AWS_REGION)
.build();
ListClustersResult clusters = ecsClient.listClusters();
for (String clusterArn : clusters.getClusterArns()) {
ListTasksRequest tasksRequest = new ListTasksRequest().withCluster(clusterArn).withServiceName("your-cluster-service-name");
ListTasksResult tasks = ecsClient.listTasks(tasksRequest);
DescribeTasksRequest request = new DescribeTasksRequest().withTasks(tasks.getTaskArns()).withCluster(clusterArn);
DescribeTasksResult response = ecsClient.describeTasks(request);
for (Task task : response.getTasks()) {
String eniId = task.getAttachments().get(0).getDetails().stream().filter(kv -> "networkInterfaceId".equals(kv.getName())).findFirst().orElse(new KeyValuePair()).getValue();
if (StringUtils.hasText(eniId)) {
DescribeNetworkInterfacesRequest describeNetworkInterfacesRequest = new DescribeNetworkInterfacesRequest()
.withNetworkInterfaceIds(eniId);
AmazonEC2 amazonEC2 = AmazonEC2Client.builder().standard()
.withCredentials(new AWSStaticCredentialsProvider(getAwsCredential(API_ACCESS_KEY, API_PASSWORD_KEY)))
.withRegion(DEFAULT_AWS_REGION)
.build();
DescribeNetworkInterfacesResult networkResult = amazonEC2.describeNetworkInterfaces(describeNetworkInterfacesRequest);
log.info("*** Public IP: " + networkResult.getNetworkInterfaces().get(0).getAssociation().getPublicIp());
}
}