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S3 & ELB & Varnish@suz_lab
Thursday, November 10, 11
cloudpack
Thursday, November 10, 11
suz-lab
Thursday, November 10, 11
S3
• HTTPでコンテンツをダウンロード• 堅牢性 : 99.999999999% : 99.99% (RRD)
• 可用性 : 99.99%• SLA : 99.9%
Thursday, November 10, 11
ELB
• ロードバランサー• SSL Termination• 実は一つのEC2に複数のELBが接続可能(AWS Management Console ではできない... )
Thursday, November 10, 11
Varnish
• コンテンツキャッシュサーバ• リバースプロキシーサーバ• HTTPヘッダの操作
Thursday, November 10, 11
S3 & ELB & Varnish
• S3 の HTTPS での独自ドメイン• S3 への POST アクセス• S3 のレスポンスに独自ヘッダ• S3 & ELB の Zone Apex 対策
Thursday, November 10, 11
S3 の HTTPS での独自ドメイン
• Facebookアプリ• HTTPSはELBで処理• N(ELB) : 1(Varnish)
Thursday, November 10, 11
設定例sub vcl_recv {
if(req.http.host == "www.cloudpack.jp") {set req.backend = cloudpack;set req.http.host = "s3.www.cloudpack.jp";return(lookup);
}return(error);
}backend cloudpack {
.host = "s3.www.cloudpack.jp";
.port = "80";}
Thursday, November 10, 11
S3 へのPOST アクセス
• Facebookアプリ• POSTをGETに変換
Thursday, November 10, 11
設定例
sub vcl_recv {if(req.http.host == "www.cloudpack.jp") {
set req.backend = cloudpack;set req.http.host = "s3.www.cloudpack.jp";set req.request = "GET";return(lookup);
}return(error);
}
Thursday, November 10, 11
S3 のレスポンスに独自ヘッダ
• 携帯画像(SoftBank)の著作権保護機能
• x-jphone-copyright• SoftBank以外はOK...
Thursday, November 10, 11
設定例sub vcl_recv {
if(req.http.host == "www.cloudpack.jp") {set req.backend = cloudpack;set req.http.host = "s3.www.cloudpack.jp";return(lookup);
}return(error);
}sub vcl_fetch {
if(req.http.host == "s3.www.cloudpack.jp") {set beresp.http.x-jphone-copyright = "no-transfer";
}return(deliver);
}
Thursday, November 10, 11
S3 & ELB のZone Apex 対策
• ELB で Route53 なら不要• cloudpack.jp の頭に www つけてリダイレクト(301)
Thursday, November 10, 11
設定例sub vcl_error {
set obj.http.Content-Type = "text/plain; charset=utf-8";if(req.url == "/healthcheck.txt") {
set obj.status = 200;synthetic {"health check"};
} else {set obj.http.Location = "http://www." req.http.host req.url;set obj.status = 301;
}return(deliver);
}
Thursday, November 10, 11
cloudpack Tools
Thursday, November 10, 11
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