如何获得正确的AWS AvailabilityZones？

Question

我正在尝试从Amazon Web Services AWS SDK获取正确的AvailabilityZones。我知道地区和终点。我尝试的任何组合都会返回us-east-1值而不是us-west-2值。

我初始化AWS这样的：

AWSCredentials credentials = null; 
try { 
    credentials = new ProfileCredentialsProvider().getCredentials(); 
} catch (Exception e) { 
    throw new AmazonClientException(
      "Cannot load the credentials from the credential profiles file. " + 
      "Please make sure that your credentials file is at the correct " + 
      "location (~/.aws/credentials), and is in valid format.", 
      e); 
} 

EndpointConfiguration endpointConfiguration = new EndpointConfiguration("ec2.us-west-2.amazonaws.com","us-west-2"); 
ec2 = AmazonEC2ClientBuilder.standard() 
     .withEndpointConfiguration(endpointConfiguration) 
     .build(); 

我也有我的配置文件设置像这样：

[default] 
region = us-west-2 

我的证书文件设置是这样的：

[default] 
aws_access_key_id = my_aws_access_key_id_here 
aws_secret_access_key = my_aws_secret_access_key_here 

但是当我这样做：

AWSCredentials awsCredentials = new BasicAWSCredentials("my_aws_access_key_id_here", "my_aws_secret_access_key_here"); 
AmazonEC2AsyncClient amazonEC2AsyncClient = new AmazonEC2AsyncClient(awsCredentials); 
DescribeAvailabilityZonesRequest describeAvailabilityZonesRequest = new DescribeAvailabilityZonesRequest(); 
Future<DescribeAvailabilityZonesResult> describeAvailabilityZonesResultFuture = amazonEC2AsyncClient.describeAvailabilityZonesAsync(describeAvailabilityZonesRequest); 
try { 
    DescribeAvailabilityZonesResult describeAvailabilityZonesResult = describeAvailabilityZonesResultFuture.get(); 
    System.out.println(describeAvailabilityZonesResult); 
} catch (Exception e) { 
    e.printStackTrace(); 
} 

我得到以下输出：

{AvailabilityZones: [{ZoneName: us-east-1a,State: available,RegionName: us-east-1,Messages: []}, {ZoneName: us-east-1b,State: available,RegionName: us-east-1,Messages: []}, {ZoneName: us-east-1c,State: available,RegionName: us-east-1,Messages: []}, {ZoneName: us-east-1d,State: available,RegionName: us-east-1,Messages: []}, {ZoneName: us-east-1e,State: available,RegionName: us-east-1,Messages: []}]} 

我如何得到它显示正确的美西2个值？我们在west-2a，2b和2c上有6个运行实例。

Answer 1

您是否试图在构建期间在客户端上设置区域？

private AmazonEC2 provideAmazonEC2() throws Exception { 
    AmazonEC2 amazonEC2 = AmazonEC2ClientBuilder.standard() 
     .withCredentials(new AWSStaticCredentialsProvider(basicAWSCredentials)) 
     .withRegion(Regions.AP_SOUTHEAST_2) 
     .build(); 

    DescribeAvailabilityZonesRequest describeAvailabilityZonesRequest = new DescribeAvailabilityZonesRequest(); 
    DescribeAvailabilityZonesResult describeAvailabilityZonesResultFuture = amazonEC2.describeAvailabilityZones(describeAvailabilityZonesRequest); 

    try { 
     List<AvailabilityZone> describeAvailabilityZonesResult = describeAvailabilityZonesResultFuture.getAvailabilityZones(); 
     System.out.println(describeAvailabilityZonesResult); 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 

    return amazonEC2; 
} 

输出

[{ZoneName: ap-southeast-2a,State: available,RegionName: ap-southeast-2,Messages: []}, {ZoneName: ap-southeast-2b,State: available,RegionName: ap-southeast-2,Messages: []}, {ZoneName: ap-southeast-2c,State: available,RegionName: ap-southeast-2,Messages: []}] 

这是我所期望的结果是。