使用Amazon S3和Route 53 API以编程方式设置静态网站

Question

假设我已经购买了IP地址为203.0.113.2的域example.com。使用C＃和亚马逊网络服务SDK for .NET 2.0.2.2，我希望使用Amazon S3和Route 53使用自定义域创建静态网站。手动过程在Amazon documentation中描述。

当试图创建别名，我得到一个异常与消息：

Invalid XML ; cvc-complex-type.2.4.a: Invalid content was found starting with element 'AliasTarget'. 
One of '{"https://route53.amazonaws.com/doc/2012-12-12/":ResourceRecords}' is expected. 

首先，我在亚马逊S3创建或更新一个桶（例如“example.com”）。如果它已经存在，则删除内容。

using (var client = AWSClientFactory.CreateAmazonS3Client(RegionEndpoint.USWest1)) 
{ 
    if (!S3BucketExists(name, client)) 
    { 
     client.PutBucket(new PutBucketRequest 
     { 
      BucketName = name, 
      BucketRegion = S3Region.USW1, 
      CannedACL = S3CannedACL.PublicRead 
     }); 
    } 
    else 
    { 
     var request = new ListObjectsRequest 
     { 
      BucketName = name 
     }; 
     var objects = client.ListObjects(request).S3Objects; 
     foreach (var o in objects) 
     { 
      client.DeleteObject(new DeleteObjectRequest 
      { 
       BucketName = name, 
       Key = o.Key 
      }); 
     } 
     client.PutACL(new PutACLRequest 
     { 
      CannedACL = S3CannedACL.PublicRead, 
      BucketName = name 
     }); 
    } 

    client.PutBucketWebsite(new PutBucketWebsiteRequest 
    { 
     BucketName = name, 
     WebsiteConfiguration = new WebsiteConfiguration 
     { 
      ErrorDocument = "404.html", 
      IndexDocumentSuffix = "index.html" 
     } 
    }); 

    CreateObject(name, client, "index.html", "text/html", "<p>The site is under maintenance</p>"); 
    CreateObject(name, client, "404.html", "text/html", "<p>Not Found</p>"); 
} 

S3BucketExists返回水桶是否存在与否，和CreateObject创建一个简单的页面，并将其上传到桶中。为简洁起见省略。我可以毫无问题地连接到S3托管网站。

然后我使用Route 53 API来更新现有托管区域或为“example.com”创建一个。所有资源，除了SOA和NS条目都被删除。

using (var client = AWSClientFactory.CreateAmazonRoute53Client()) 
{ 
    var hostedZone = FindHostedZoneByName(client, domainName); 
    if (hostedZone != null) 
    { 
     var resourceRecordSets = client.ListResourceRecordSets(new ListResourceRecordSetsRequest 
     { 
      HostedZoneId = hostedZone.Id, 
     }); 

     bool hasElements = false; 
     var request1 = new ChangeResourceRecordSetsRequest 
     { 
      HostedZoneId = hostedZone.Id, 
      ChangeBatch = new ChangeBatch 
      { 
       Changes = new List<Change>() 
      } 
     }; 
     foreach (var resourceRecordSet in resourceRecordSets.ResourceRecordSets) 
     { 
      switch (resourceRecordSet.Type) 
      { 
       case "SOA": 
       case "NS": 
        continue; 
      } 

      var change = new Change 
      { 
       Action = "DELETE", 
       ResourceRecordSet = resourceRecordSet 
      }; 
      request1.ChangeBatch.Changes.Add(change); 
      hasElements = true; 
     } 

     if (hasElements) 
     { 
      var response = client.ChangeResourceRecordSets(request1); 
     } 
    } 
    else 
    { 
     hostedZone = CreateHostedZone(client, domainName); 
    } 

    var hostedZoneId = hostedZone.Id; 
    var request = new ChangeResourceRecordSetsRequest 
    { 
     HostedZoneId = hostedZoneId, 
     ChangeBatch = new ChangeBatch 
     { 
      Changes = new List<Change> 
      { 
       new Change 
       { 
        Action = ChangeAction.CREATE, 
        ResourceRecordSet = new ResourceRecordSet 
        { 
         Name = GetQualifiedName(domainName), 
         Type = RRType.A, 
         TTL = 300, 
         AliasTarget = new AliasTarget() 
         { 
          HostedZoneId = "Z2F56UZL2M1ACD", 
          DNSName = "s3-website-us-west-1.amazonaws.com.", 
         }, 
        }, 
       }, 
      } 
     } 
    }; 
    client.ChangeResourceRecordSets(request); 
} 

托管区域ID（ “Z2F56UZL2M1ACD”）和DNS名称（ “s3-website-us-west-1.amazonaws.com。”）是公共知识和documented on Amazon's website。

对ChangeResourceRecordSets的调用引发异常。我创建了一个空的ResourceRecords列表，其中A记录为“203.0.113.2”，但没有创建别名的运气。

也就是说，之后我可以使用“Route 53管理控制台”手动创建Amazon S3站点的别名。我相信这是我错过的小事。

Answer 1

重新阅读文档后发现，指定别名时无法指定TTL。以下更改有效。替换创建的ChangeResourceRecordSetsRequest一个实例为以下的代码：当由System.Net tracing产生的输出进行比较，以在Amazon example指定的请求

var request = new ChangeResourceRecordSetsRequest 
{ 
    HostedZoneId = hostedZoneId, 
    ChangeBatch = new ChangeBatch 
    { 
     Changes = new List<Change> 
     { 
      new Change 
      { 
       Action = ChangeAction.CREATE, 
       ResourceRecordSet = new ResourceRecordSet 
       { 
        Name = GetQualifiedName(domainName), 
        Type = RRType.A, 
        AliasTarget = new AliasTarget 
        { 
         HostedZoneId = "Z2F56UZL2M1ACD", 
         DNSName = "s3-website-us-west-1.amazonaws.com.", 
         EvaluateTargetHealth = false, 
        }, 
       }, 
      }, 
     } 
    } 
}; 

的差别是明显的。