{"id":30772,"date":"2026-05-06T10:00:00","date_gmt":"2026-05-06T02:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=30772"},"modified":"2026-05-16T23:36:46","modified_gmt":"2026-05-16T15:36:46","slug":"aws-cloudfront-s3-lambda-edge-advanced","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/cdn\/aws-cloudfront-s3-lambda-edge-advanced\/","title":{"rendered":"AWS CloudFront \u8fdb\u9636\uff1a\u4e0e S3 \u8054\u52a8\u53ca Lambda@Edge \u5b9e\u6218"},"content":{"rendered":"<p><img decoding=\"async\" alt=\"AWS CloudFront S3 Lambda@Edge \u914d\u7f6e\u6307\u5357\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/05\/aws-cloudfront-s3-lambda-edge-advanced-cover.webp\" \/><\/p>\n<p>\u5982\u679c\u4f60\u7684\u8d44\u6e90\u5df2\u7ecf\u5728 S3\u3001\u7528\u6237\u5206\u5e03\u5728\u5168\u7403\uff0c\u5e76\u4e14\u5e0c\u671b\u8fb9\u7f18\u8282\u70b9\u80fd\u505a\u8bf7\u6c42\u7ea7\u522b\u7684\u6539\u5199\u6216\u9274\u6743\uff0c\u90a3\u4e48 CloudFront \u8fdb\u9636 \u914d\u7f6e\u662f\u5fc5\u7ecf\u4e4b\u8def\u3002CloudFront \u4e0e S3 \u7684\u8054\u52a8\u770b\u4f3c\u7b80\u5355\uff0c\u4f46\u8981\u505a\u5230\u56de\u6e90\u5b89\u5168\u3001\u547d\u4e2d\u7387\u9ad8\u3001\u5e76\u80fd\u7528 Lambda@Edge \u6ce8\u5165\u4e1a\u52a1\u903b\u8f91\uff0c\u9700\u8981\u8e29\u8fc7\u51e0\u9053\u5173\u5361\u3002\u672c\u6587\u5c06\u6559\u4f60\u5982\u4f55\u4e3a S3 \u9759\u6001\u7ad9\u70b9\u914d\u7f6e\u4e00\u4efd\u751f\u4ea7\u53ef\u7528\u7684 CloudFront \u5206\u53d1\uff0c\u8986\u76d6 OAC\u3001\u7f13\u5b58\u7b56\u7565\u3001Lambda@Edge \u4e0e\u76d1\u63a7\u544a\u8b66\uff0c\u5e2e\u4f60\u89e3\u51b3&#8221;S3 \u6876\u88ab\u516c\u5f00\u66b4\u9732\u3001\u547d\u4e2d\u7387\u5374\u5f88\u4f4e&#8221;\u8fd9\u7c7b\u95ee\u9898\u3002<\/p>\n<h2>\u4e00\u3001CloudFront \u9002\u5408\u7684\u573a\u666f<\/h2>\n<p>CloudFront \u4e0e BunnyCDN\u3001KeyCDN \u7b49\u901a\u7528 CDN \u7684\u672c\u8d28\u5dee\u5f02\uff0c\u5728\u4e8e\u5b83\u7d27\u5bc6\u96c6\u6210 AWS \u751f\u6001\uff1a\u4e0e S3\u3001ALB\u3001API Gateway \u76f4\u63a5\u6253\u901a\uff0c\u53ef\u7528 Lambda@Edge \u6216 CloudFront Functions \u5199\u8fb9\u7f18\u903b\u8f91\uff0c\u6743\u9650\u8d70 IAM\u3002\u5224\u65ad\u662f\u5426\u503c\u5f97\u9009\u5b83\uff0c\u4e09\u4e2a\u7ef4\u5ea6\u53c2\u8003\uff1a\u751f\u6001\u6df1\u5ea6\uff08\u540e\u7aef\u662f\u5426\u5df2\u5728 AWS\uff09\u3001\u8fb9\u7f18\u53ef\u7f16\u7a0b\uff08\u8bf7\u6c42\u5c42\u6539\u5199\u3001\u7b7e\u540d\u3001A\/B Test\uff09\u3001\u4f01\u4e1a\u5408\u89c4\uff08IAM \u6743\u9650\u3001CloudTrail \u5ba1\u8ba1\uff09\u3002<\/p>\n<p>\u6e90\u7ad9\u4e0d\u5728 AWS \u65f6 CloudFront \u4ecd\u53ef\u7528\uff0c\u4f18\u52bf\u53d8\u4e3a&#8221;\u5168\u7403\u8282\u70b9 + AWS WAF \u8054\u52a8&#8221;\u3002\u6e90\u7ad9\u7ebf\u8def\u9009\u62e9\u53ef\u53c2\u8003 <a href=\"https:\/\/cn.hostease.com\/blog\/guides\/wordpress-hk-hosting-guide\/\">WordPress \u9999\u6e2f\u4e3b\u673a\u9009\u8d2d\u6307\u5357<\/a> \u4e0e <a href=\"https:\/\/cn.hostease.com\/blog\/guides\/cloud-server-buying-guide\/\">\u4e91\u670d\u52a1\u5668\u9009\u8d2d\u6307\u5357<\/a> \u4e2d\u5173\u4e8e\u7f51\u7edc\u51fa\u53e3\u7684\u7ae0\u8282\u3002<\/p>\n<h2>\u4e8c\u3001\u7528 OAC \u9501\u5b9a S3 \u6e90\u7ad9<\/h2>\n<p>\u5f88\u591a\u56e2\u961f\u521d\u671f\u628a S3 \u6876\u8bbe\u4e3a public-read \u8ba9 CloudFront \u76f4\u8fde\u3002\u8fd9\u79cd\u65b9\u5f0f\u7b80\u5355\u4f46\u7559\u4e0b\u5b89\u5168\u9690\u60a3\uff1aS3 \u771f\u5b9e URL \u4f1a\u88ab\u641c\u7d22\u5f15\u64ce\u6536\u5f55\u3001\u722c\u866b\u76f4\u63a5\u7ed5\u8fc7 CDN \u62c9\u53d6\uff0cCloudFront \u4e0a\u7684 WAF \u4e0e\u7f13\u5b58\u5168\u90e8\u5931\u6548\uff0c\u6e90\u7ad9\u8fd8\u8981\u989d\u5916\u627f\u62c5\u76f4\u8fde\u6d41\u91cf\u4e0e\u5e26\u5bbd\u8d39\u7528\u3002<\/p>\n<p>\u6b63\u786e\u505a\u6cd5\u662f\u4f7f\u7528 OAC\uff08Origin Access Control\uff0c\u6e90\u8bbf\u95ee\u63a7\u5236\uff09\uff1aCloudFront \u7528 SigV4 \u7b7e\u540d\u8bbf\u95ee S3\uff0cS3 \u6876\u7b56\u7565\u4ec5\u5141\u8bb8\u5e26\u6b63\u786e\u7b7e\u540d\u7684 CloudFront \u8bf7\u6c42\u3002\u5177\u4f53\u6b65\u9aa4\u662f\u5728\u63a7\u5236\u53f0 Origins \u2192 Add Origin \u2192 \u9009 S3\uff0c\u52fe\u9009 &#8220;Origin access control settings&#8221; \u5e76\u65b0\u5efa\u4e00\u4e2a OAC\uff0c\u518d\u5230 S3 \u6876 \u2192 Bucket Policy \u7c98\u8d34 CloudFront \u81ea\u52a8\u751f\u6210\u7684\u7b56\u7565\uff0c\u8be5\u7b56\u7565\u8981\u5305\u542b <code>Service: cloudfront.amazonaws.com<\/code> \u4e3b\u4f53\u3001<code>Action: s3:GetObject<\/code>\u3001\u76ee\u6807\u6876\u8d44\u6e90\u3001\u4ee5\u53ca <code>AWS:SourceArn<\/code> \u6761\u4ef6\u4ee5\u907f\u514d\u5171\u7528\u6876\u88ab\u5176\u4ed6 Distribution \u8bbf\u95ee\u3002<\/p>\n<p>\u7b56\u7565\u751f\u6548\u540e\uff0c\u628a S3 \u6876\u6574\u4f53\u8bbe\u7f6e\u56de Block all public access \u72b6\u6001\uff0c\u6876\u5bf9\u5916\u5b8c\u5168\u4e0d\u53ef\u89c1\u3002\u4efb\u4f55\u5c1d\u8bd5\u76f4\u63a5\u8bbf\u95ee S3 URL \u7684\u8bf7\u6c42\u90fd\u4f1a\u88ab\u62d2\u7edd\uff0c\u6240\u6709\u8bbf\u95ee\u5fc5\u987b\u7ecf\u8fc7 CloudFront\uff0c\u4ece\u800c\u628a WAF\u3001\u7f13\u5b58\u3001\u65e5\u5fd7\u7edf\u4e00\u6536\u655b\u5230 CDN \u5c42\u3002\u5982\u679c\u4e1a\u52a1\u8fd8\u7528\u5230\u4e86 SSE-KMS \u52a0\u5bc6\uff0cOAC \u89d2\u8272\u8fd8\u9700\u8981\u5728 KMS \u5bc6\u94a5\u7b56\u7565\u91cc\u6388\u4e88 <code>kms:Decrypt<\/code> \u6743\u9650\uff0c\u5426\u5219\u4f1a\u51fa\u73b0 403 \u540c\u65f6\u7f13\u5b58\u547d\u4e2d\u7387\u4e0d\u53d8\u7684\u5947\u602a\u73b0\u8c61\u3002<\/p>\n<h2>\u4e09\u3001\u7f13\u5b58\u7b56\u7565\u4e0e Origin Request Policy<\/h2>\n<p>CloudFront 2026 \u7248\u672c\u628a\u7f13\u5b58\u914d\u7f6e\u62c6\u6210\u4e09\u5c42\uff1aCache Policy\uff08\u51b3\u5b9a cache key \u5b57\u6bb5\uff09\u3001Origin Request Policy\uff08\u56de\u6e90\u65f6\u900f\u4f20\u54ea\u4e9b\u5934\u4e0e Cookie\uff09\u3001Response Headers Policy\uff08\u8fb9\u7f18\u6ce8\u5165\u54cd\u5e94\u5934\uff09\u3002\u63a8\u8350\u7ec4\u5408\uff1a\u9759\u6001\u8d44\u6e90\u7528 CachingOptimized + AllViewerExceptHostHeader + SecurityHeadersPolicy\uff1bAPI \u63a5\u53e3\u7528 CachingDisabled + AllViewerAndCloudFrontHeaders\uff1bHTML \u5165\u53e3\u81ea\u5b9a\u4e49\u77ed TTL\uff085 \u5206\u949f\uff09\uff0ccache key \u4ec5\u542b URL + Accept-Encoding\u3002\u5982\u679c\u6e90\u7ad9\u5df2\u542f\u7528\u672c\u5730\u7f13\u5b58\u63d2\u4ef6\uff0c\u53ef\u53c2\u8003 <a href=\"https:\/\/cn.hostease.com\/blog\/wordpress\/wordpress-w3-total-cache-tuning\/\">WordPress W3 Total Cache \u8c03\u4f18\u5b9e\u6218<\/a> \u5173\u4e8e TTL \u534f\u4f5c\u7684\u7ae0\u8282\uff1b\u66f4\u591a WordPress \u52a0\u901f\u573a\u666f\u5728 <a href=\"https:\/\/cn.hostease.com\/blog\/category\/wordpress\/\">WordPress \u5206\u7c7b<\/a> \u4e0b\u67e5\u9605\u3002<\/p>\n<h2>\u56db\u3001Lambda@Edge \u5b9e\u6218\uff1a\u8bf7\u6c42\u6539\u5199\u4e0e\u9274\u6743<\/h2>\n<p>CloudFront \u63d0\u4f9b\u4e24\u79cd\u8fb9\u7f18\u51fd\u6570\uff1aCloudFront Functions\uff08\u4ec5 Viewer \u9636\u6bb5\uff0c\u6beb\u79d2\u7ea7\u3001JS \u5b50\u96c6\u3001\u6210\u672c\u6781\u4f4e\uff09\u548c Lambda@Edge\uff08\u56db\u9636\u6bb5\u5168\u8986\u76d6\u3001\u5b8c\u6574 Node.js\u3001\u53ef\u8c03\u7528 AWS SDK\uff09\u3002\u7b80\u5355\u5b57\u7b26\u4e32\u66ff\u6362\u3001Header \u6ce8\u5165\u8fd9\u7c7b\u8f7b\u91cf\u903b\u8f91\u7528 CloudFront Functions \u5c31\u591f\uff0c\u9700\u8981\u8bbf\u95ee DynamoDB\u3001KMS\u3001Secrets Manager \u8fd9\u7c7b\u5916\u90e8\u8d44\u6e90\u65f6\u624d\u7528 Lambda@Edge\u3002<\/p>\n<p>\u5178\u578b\u7684\u8bf7\u6c42\u6539\u5199\u573a\u666f\u5728 Origin Request \u9636\u6bb5\u5904\u7406\uff1a\u6839\u636e <code>cloudfront-viewer-country<\/code> \u5934\u5224\u65ad viewer \u56fd\u5bb6\uff0c\u5bf9\u6765\u81ea\u7279\u5b9a\u533a\u57df\u7684 <code>\/api\/<\/code> \u8bf7\u6c42\u5207\u6362\u5230\u5bf9\u5e94\u7684\u6e90\u7ad9\uff1b\u540c\u65f6\u628a\u6839\u8def\u5f84\u8bf7\u6c42\u8865\u5168\u4e3a <code>\/index.html<\/code>\uff0c\u8ba9 S3 \u9759\u6001\u7ad9\u70b9\u80fd\u6b63\u786e\u8fd4\u56de\u9996\u9875\u3002\u540e\u8005\u5bf9 S3 \u5c24\u5176\u91cd\u8981\uff0c\u56e0\u4e3a S3 \u672c\u8eab\u4e0d\u4f1a\u81ea\u52a8\u89e3\u6790&#8221;\u76ee\u5f55\u7d22\u5f15&#8221;\uff0c\u6ca1\u6709\u8fd9\u4e00\u6b65\u524d\u53f0\u4f1a\u62ff\u5230\u4e00\u4e2a\u5947\u602a\u7684 ListBucket \u9519\u8bef\u3002<\/p>\n<p>\u9274\u6743\u573a\u666f\u6700\u5e38\u843d\u5728 Viewer Request \u9636\u6bb5\uff0c\u51fd\u6570\u68c0\u67e5 Cookie \u6216 JWT \u540e\u51b3\u5b9a\u662f\u653e\u884c\u8fd8\u662f\u8fd4\u56de 401\u3002\u8fd9\u79cd\u9274\u6743\u524d\u7f6e\u53ef\u4ee5\u5728\u6e90\u7ad9\u5b8c\u5168\u65e0\u611f\u77e5\u7684\u60c5\u51b5\u4e0b\u963b\u6321 95% \u4ee5\u4e0a\u7684\u6076\u610f\u8bf7\u6c42\u3002Lambda@Edge \u90e8\u7f72\u540e\u5411\u5168\u7403\u8282\u70b9\u4f20\u64ad\u5927\u7ea6\u9700\u8981 5 \u5230 15 \u5206\u949f\uff0c\u8c03\u8bd5\u671f\u95f4\u5efa\u8bae\u5728 us-east-1 \u7528 CloudWatch Logs \u8ddf\u8e2a\u51fd\u6570\u65e5\u5fd7\uff0c\u6ce8\u610f Logs \u662f\u6309\u8282\u70b9\u6240\u5728\u5730\u533a\u5206\u522b\u843d\u5730\u7684\uff0c\u4e0d\u5728 us-east-1 \u4e0d\u4e00\u5b9a\u80fd\u770b\u5230\u3002<\/p>\n<h2>\u4e94\u3001\u76d1\u63a7\u3001\u544a\u8b66\u4e0e\u6210\u672c\u63a7\u5236<\/h2>\n<p>CloudFront \u4e09\u4e2a\u5173\u952e\u6307\u6807\uff1aCacheHitRate\uff08\u5efa\u8bae 85% \u4ee5\u4e0a\uff0c\u4f4e\u4e8e 70% \u8bf4\u660e\u7b56\u7565\u6216\u6e90\u7ad9\u5934\u6709\u95ee\u9898\uff09\u3001OriginLatency\uff08\u533a\u5206 First Byte \u4e0e Total\uff09\u30015xxErrorRate\uff08\u8d85\u8fc7 1% \u5e94\u544a\u8b66\uff09\u3002\u5728 CloudWatch \u4e2d\u4e3a\u6bcf\u4e2a\u6307\u6807\u521b\u5efa Alarm\uff0c\u89e6\u53d1\u540e\u901a\u8fc7 SNS \u63a8\u9001\u5230 Slack \u6216\u90ae\u4ef6\u3002\u6210\u672c\u63a7\u5236\u65b9\u9762\uff0cCloudFront \u6309\u533a\u57df\u8ba1\u8d39\uff0cAWS Africa\u3001South America \u533a\u57df\u663e\u8457\u8d35\u4e8e\u5317\u7f8e\u6b27\u6d32\u3002\u5982\u4e1a\u52a1\u96c6\u4e2d\u4e9a\u592a\uff0c\u53ef\u628a Distribution \u7684 Price Class \u8bbe\u4e3a PriceClass_200\uff0c\u8282\u7701\u7ea6 20% \u6d41\u91cf\u8d39\u7684\u540c\u65f6\u4ecd\u80fd\u8986\u76d6\u7edd\u5927\u591a\u6570\u6838\u5fc3\u7528\u6237\u7fa4\u3002\u8d26\u5355\u4e0a\u6ce8\u610f\u533a\u5206\u6d41\u91cf\u8d39\u3001HTTPS \u8bf7\u6c42\u8d39\u3001\u51fd\u6570\u8c03\u7528\u8d39\u4e09\u5927\u7c7b\uff0c\u51fd\u6570\u8c03\u7528\u8d39\u5728 Lambda@Edge \u542f\u7528\u540e\u53ef\u80fd\u6210\u4e3a\u610f\u5916\u5f00\u9500\uff0c\u5efa\u8bae\u4e3a Lambda@Edge \u5355\u72ec\u5efa\u4e00\u4e2a\u6210\u672c\u6807\u7b7e\u3002<\/p>\n<h2>\u516d\u3001\u6545\u969c\u6392\u67e5\u6e05\u5355<\/h2>\n<p>CloudFront \u4e0a\u7ebf\u540e\u9ad8\u9891\u95ee\u9898\u4e0e\u5904\u7406\u65b9\u5411\uff1aS3 \u8fd4\u56de 403 \u65f6\u68c0\u67e5 OAC \u5173\u8054\u3001S3 \u6876\u7b56\u7565 <code>AWS:SourceArn<\/code> \u6761\u4ef6\u3001SSE-KMS \u6743\u9650\uff1b\u7f13\u5b58\u547d\u4e2d\u7387\u7a81\u964d\u901a\u5e38\u662f\u65b0\u7248\u672c Cache Policy \u628a Cookie \u52a0\u5165 cache key \u5bfc\u81f4\u57fa\u6570\u7206\u70b8\uff1bLambda@Edge \u62a5 ResourceConflict \u9700\u5148\u89e3\u9664\u5173\u8054\u7b49\u7248\u672c\u4f20\u64ad\u5b8c\u6210\uff08\u7ea6 1 \u5c0f\u65f6\uff09\u518d\u5220\u9664\uff1b\u7279\u5b9a\u533a\u57df\u5ef6\u8fdf\u9ad8\u53ef\u80fd\u662f PriceClass_200 \u4e0d\u542b\u8be5\u533a\u57df\uff1b\u56fd\u5185\u8bbf\u95ee\u6162\u53ef\u7528 <a href=\"https:\/\/cn.hostease.com\/blog\/tutorials\/us-vps-deployment-tutorial-guide\/\">\u7f8e\u56fd VPS \u90e8\u7f72\u6559\u7a0b<\/a> \u4e2d\u7684 MTR \u547d\u4ee4\u5b9a\u4f4d\u74f6\u9888\u8df3\u70b9\u3002<\/p>\n<h2>\u4e03\u3001\u4e0e WAF\u3001Shield \u8054\u52a8<\/h2>\n<p>CloudFront \u4e0e AWS WAF\uff08Web Application Firewall\uff0cWeb \u5e94\u7528\u9632\u706b\u5899\uff09\u7684\u6df1\u5ea6\u96c6\u6210\u662f\u5176\u4ed6\u901a\u7528 CDN \u96be\u4ee5\u5339\u654c\u7684\u3002\u5efa\u8bae\u81f3\u5c11\u542f\u7528\u4e09\u7ec4\u89c4\u5219\uff1aAWSManagedRulesCommonRuleSet\u3001AWSManagedRulesKnownBadInputsRuleSet\u3001AWSManagedRulesAmazonIpReputationList\u3002AWS Shield Standard \u81ea\u52a8\u5305\u542b\u5728\u6bcf\u4e2a Distribution \u4e2d\uff0c\u80fd\u62b5\u5fa1 L3\/L4 \u5c42 DDoS\u3002\u4e2d\u5c0f\u7ad9\u70b9\u53ef\u4e0d\u5347\u7ea7 Shield Advanced\uff0c\u4f46\u8981\u628a WAF \u901f\u7387\u9650\u5236\uff08Rate-Based Rule\uff09\u9608\u503c\u538b\u5230 2000 \u8bf7\u6c42\u6bcf 5 \u5206\u949f\u3002<\/p>\n<h2>\u603b\u7ed3\u4e0e\u5efa\u8bae<\/h2>\n<p>CloudFront \u8fdb\u9636 \u7684\u5173\u952e\u662f\u628a&#8221;\u5206\u53d1\u67b6\u6784&#8221;\u4e0e&#8221;\u8fb9\u7f18\u903b\u8f91&#8221;\u5206\u5f00\u7ba1\u7406\uff1a\u5206\u53d1\u5c42\u7528 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