{"id":210327,"date":"2025-10-24T11:16:49","date_gmt":"2025-10-24T03:16:49","guid":{"rendered":"https:\/\/www.server.hk\/blog\/210327\/"},"modified":"2025-10-24T11:16:50","modified_gmt":"2025-10-24T03:16:50","slug":"cdn-365","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/210327\/","title":{"rendered":"\u4e00\u952e\u81ea\u52a8\u5316\uff1aCDN\u7f13\u5b58\u4f18\u5316\u5b9e\u6218\u6307\u5357"},"content":{"rendered":"<p>\u5728\u5f53\u4eca\u6d41\u91cf\u6fc0\u589e\u4e0e\u5168\u7403\u7528\u6237\u5206\u5e03\u65e5\u76ca\u5206\u6563\u7684\u73af\u5883\u4e2d\uff0cCDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u7f13\u5b58\u5df2\u6210\u4e3a\u63d0\u9ad8\u7f51\u7ad9\u54cd\u5e94\u901f\u5ea6\u3001\u964d\u4f4e\u6e90\u7ad9\u8d1f\u8f7d\u4e0e\u8282\u7ea6\u5e26\u5bbd\u6210\u672c\u7684\u5173\u952e\u6280\u672f\u3002\u5bf9\u4e8e\u7ad9\u957f\u3001\u4f01\u4e1a\u548c\u5f00\u53d1\u8005\u800c\u8a00\uff0c\u5982\u4f55\u5c06\u4f20\u7edf\u7684\u624b\u52a8\u7f13\u5b58\u914d\u7f6e\u8f6c\u53d8\u4e3a\u201c\u4e00\u952e\u81ea\u52a8\u5316\u201d\u6d41\u7a0b\uff0c\u4e0d\u4ec5\u80fd\u63d0\u5347\u8fd0\u7ef4\u6548\u7387\uff0c\u8fd8\u80fd\u663e\u8457\u964d\u4f4e\u4eba\u4e3a\u914d\u7f6e\u9519\u8bef\u5e26\u6765\u7684\u98ce\u9669\u3002\u672c\u6587\u5c06\u4ece\u539f\u7406\u3001\u5e94\u7528\u573a\u666f\u3001\u6280\u672f\u5b9e\u73b0\u4e0e\u9009\u8d2d\u5efa\u8bae\u7b49\u65b9\u9762\uff0c\u8be6\u7ec6\u8bb2\u89e3\u5982\u4f55\u6784\u5efa\u4e00\u5957\u53ef\u590d\u5236\u3001\u53ef\u6269\u5c55\u7684CDN\u7f13\u5b58\u4f18\u5316\u81ea\u52a8\u5316\u4f53\u7cfb\uff0c\u5e2e\u52a9\u4f60\u5728\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u6216\u5176\u4ed6\u6d77\u5916\u670d\u52a1\u5668\u4e0a\u5b9e\u73b0\u7a33\u5b9a\u9ad8\u901f\u7684\u5185\u5bb9\u5206\u53d1\u3002<\/p>\n<h2>CDN\u7f13\u5b58\u57fa\u7840\u539f\u7406\u4e0e\u5173\u952e\u6982\u5ff5<\/h2>\n<p>\u7406\u89e3\u7f13\u5b58\u81ea\u52a8\u5316\u4e4b\u524d\uff0c\u5fc5\u987b\u638c\u63e1\u82e5\u5e72\u6838\u5fc3\u6982\u5ff5\u548cHTTP\u5934\uff1aCache-Control\u3001Expires\u3001ETag\u3001Last-Modified\u3001Vary\u3001Surrogate-Control\uff08\u7528\u4e8e\u8fb9\u7f18\u7f13\u5b58\uff09\uff0c\u4ee5\u53ca\u7f13\u5b58\u5237\u65b0\u7684\u4e24\u79cd\u65b9\u5f0f\uff1a\u5931\u6548\uff08purge\/invalidate\uff09\u4e0e\u8fc7\u671f\uff08TTL\u5230\u671f\uff09\u3002<\/p>\n<h3>\u7f13\u5b58\u51b3\u7b56\u94fe\uff08Cache Decision Chain\uff09<\/h3>\n<ul>\n<li>\u6d4f\u89c8\u5668\u7f13\u5b58\uff08Client-side\uff09\uff1a\u7531Cache-Control\/Expires\u63a7\u5236\uff0c\u5f71\u54cd\u5ba2\u6237\u7aef\u91cd\u590d\u8bf7\u6c42\u3002<\/li>\n<li>\u8fb9\u7f18\u7f13\u5b58\uff08Edge\/POP\uff09\uff1aCDN\u8282\u70b9\u7f13\u5b58\uff0c\u51b3\u5b9a\u80fd\u5426\u5728\u79bb\u7528\u6237\u6700\u8fd1\u7684\u8282\u70b9\u547d\u4e2d\u8d44\u6e90\u3002<\/li>\n<li>\u4e2d\u95f4\u7f13\u5b58\uff08Proxy\/ISP\uff09\uff1a\u53ef\u80fd\u5b58\u5728\u7684\u4e2d\u95f4\u5c42\u7f13\u5b58\uff0c\u4f9d\u636e\u76f8\u540cHTTP\u5934\u751f\u6548\u3002<\/li>\n<li>\u6e90\u7ad9\uff08Origin\uff09\uff1a\u5f53\u8fb9\u7f18\u6216\u4e2d\u95f4\u7f13\u5b58\u672a\u547d\u4e2d\u65f6\u56de\u6e90\uff0c\u6e90\u7ad9\u5e94\u901a\u8fc7\u5408\u9002\u7684\u54cd\u5e94\u5934\u4e0e\u56de\u6e90\u7b56\u7565\u51cf\u5c11\u4e0d\u5fc5\u8981\u8bf7\u6c42\u3002<\/li>\n<\/ul>\n<p>\u5728\u81ea\u52a8\u5316\u573a\u666f\u4e2d\uff0c\u6211\u4eec\u901a\u5e38\u805a\u7126\u4e8e\u8fb9\u7f18\u7f13\u5b58\u7b56\u7565\u4e0e\u56de\u6e90\u63a7\u5236\uff0c\u901a\u8fc7\u7edf\u4e00\u7684\u7f13\u5b58\u952e\uff08\u5305\u542bHost\u3001Path\u3001Query\u3001Cookie\u6216\u81ea\u5b9a\u4e49Header\uff09\u4ee5\u53ca\u4e00\u81f4\u7684TTL\u7b56\u7565\uff0c\u786e\u4fdd\u5404\u8282\u70b9\u884c\u4e3a\u4e00\u81f4\u3002<\/p>\n<h3>\u7f13\u5b58\u4e00\u81f4\u6027\u4e0e\u5931\u6548\u7b56\u7565<\/h3>\n<p>\u7f13\u5b58\u81ea\u52a8\u5316\u7684\u96be\u70b9\u5728\u4e8e\u5982\u4f55\u5feb\u901f\u4e14\u53ef\u9760\u5730\u4f7f\u8fb9\u7f18\u7f13\u5b58\u4e0e\u6e90\u7ad9\u4fdd\u6301\u4e00\u81f4\u3002\u5e38\u89c1\u65b9\u6cd5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u57fa\u4e8e\u4e8b\u4ef6\u7684\u4e3b\u52a8\u5931\u6548<\/strong>\uff1a\u5f53\u5185\u5bb9\u66f4\u65b0\u65f6\u89e6\u53d1API\u8c03\u7528\uff08CDN Provider API\uff09\u8fdb\u884c\u5355\u6761\u6216\u901a\u914d\u7b26\u5931\u6548\u3002<\/li>\n<li><strong>\u7248\u672c\u5316URL\/Query String<\/strong>\uff1a\u901a\u8fc7\u6784\u5efa\u7cfb\u7edf\u5728\u90e8\u7f72\u65f6\u4fee\u6539\u8d44\u6e90\u6587\u4ef6\u540d\uff08\u5982app.v123.js\uff09\u6216\u589e\u52a0\u7248\u672c\u53c2\u6570\uff0c\u505a\u5230\u5929\u7136\u5931\u6548\u3002<\/li>\n<li><strong>\u77edTTL + Revalidate<\/strong>\uff1a\u5bf9\u52a8\u6001\u6216\u9891\u7e41\u53d8\u66f4\u7684\u8d44\u6e90\u8bbe\u7f6e\u77edTTL\uff0c\u914d\u5408If-None-Match\/If-Modified-Since\u51cf\u5c11\u56de\u6e90\u8d1f\u62c5\u3002<\/li>\n<\/ul>\n<h2>\u4e00\u952e\u81ea\u52a8\u5316\u7684\u5b9e\u73b0\u8def\u5f84\u4e0e\u6280\u672f\u7ec6\u8282<\/h2>\n<p>\u5b9e\u73b0\u201c\u4e00\u952e\u81ea\u52a8\u5316\u201d\u53ef\u4ee5\u4ece\u90e8\u7f72\u7ba1\u9053\u3001CDN\u914d\u7f6e\u6a21\u677f\u3001\u811a\u672c\u4e0e\u76d1\u63a7\u56db\u4e2a\u7ef4\u5ea6\u5165\u624b\u3002<\/p>\n<h3>CI\/CD\u4e0e\u81ea\u52a8\u5316\u811a\u672c<\/h3>\n<ul>\n<li>\u5728CI\u7cfb\u7edf\uff08Jenkins\/GitHub Actions\/GitLab CI\uff09\u4e2d\u52a0\u5165\u53d1\u5e03\u9636\u6bb5\uff0c\u8d1f\u8d23\u6784\u5efa\u3001\u4e0a\u4f20\u9759\u6001\u8d44\u6e90\u5230\u5bf9\u8c61\u5b58\u50a8\uff08\u5982S3\u6216\u81ea\u5efa\u5bf9\u8c61\u5b58\u50a8\uff09\uff0c\u5e76\u81ea\u52a8\u89e6\u53d1CDN\u5237\u65b0API\u6216\u66f4\u65b0\u7248\u672c\u53f7\u3002<\/li>\n<li>\u793a\u4f8b\u6d41\u7a0b\uff1a\u4ee3\u7801\u5408\u5e76 \u2192 \u6784\u5efa\u9759\u6001\u8d44\u6e90\u5e76\u54c8\u5e0c\u547d\u540d \u2192 \u4e0a\u4f20\u5230\u5bf9\u8c61\u5b58\u50a8\u5e76\u8fd4\u56deURL \u2192 \u8c03\u7528CDN API\u6279\u91cf\u5931\u6548\u6216\u66f4\u65b0\u7f13\u5b58\u89c4\u5219 \u2192 \u901a\u77e5\u76d1\u63a7\u7cfb\u7edf\u3002<\/li>\n<li>\u63a8\u8350\u4f7f\u7528\u65e0\u72b6\u6001\u7684\u81ea\u52a8\u5316\u811a\u672c\uff08Python\/Go\/Node.js\uff09\uff0c\u901a\u8fc7CDN\u63d0\u4f9b\u7684RESTful API\u6216Terraform Provider\u5b9e\u73b0\u5e42\u7b49\u64cd\u4f5c\uff0c\u786e\u4fdd\u201c\u4e00\u952e\u201d\u53ef\u91cd\u590d\u6267\u884c\u3002<\/li>\n<\/ul>\n<h3>\u7f13\u5b58\u952e\u4e0e\u8def\u7531\u89c4\u5219\u7684\u6a21\u677f\u5316<\/h3>\n<p>\u4e3a\u4e86\u5728\u591a\u4e2aPOP\u70b9\u4fdd\u6301\u4e00\u81f4\u6027\uff0c\u9700\u8981\u4e3a\u5e38\u89c1\u8d44\u6e90\u7c7b\u578b\u5236\u5b9a\u6a21\u677f\u5316\u89c4\u5219\uff1a<\/p>\n<ul>\n<li>\u9759\u6001\u8d44\u6e90\uff08js\/css\/fonts\/images\uff09\uff1a\u5f3a\u7f13\u5b58\uff08Cache-Control: public, max-age=31536000, immutable\uff09\u5e76\u4f7f\u7528\u6587\u4ef6\u540d\u54c8\u5e0c\u3002<\/li>\n<li>\u9875\u9762HTML\uff1a\u91c7\u7528Edge-Side Includes\uff08ESI\uff09\u6216\u5206\u6bb5\u7f13\u5b58\uff0c\u5c06\u4e0d\u53d8\u90e8\u5206\u8bbe\u7f6e\u957fTTL\uff0c\u52a8\u6001\u90e8\u5206\u4f7f\u7528\u77edTTL\u6216\u7ed5\u8fc7\u7f13\u5b58\u3002<\/li>\n<li>API\u4e0e\u52a8\u6001\u63a5\u53e3\uff1a\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u8bbe\u7f6eno-cache\u6216private\uff0c\u4f46\u53ef\u4ee5\u5bf9\u53ef\u7f13\u5b58\u7684\u63a5\u53e3\u8bbe\u7f6eCache-Control: s-maxage=60, stale-while-revalidate=30\u4ee5\u63d0\u5347\u4f53\u9a8c\u3002<\/li>\n<\/ul>\n<p>\u5728\u81ea\u52a8\u5316\u914d\u7f6e\u4e2d\uff0c\u5e94\u5c06\u8fd9\u4e9b\u89c4\u5219\u4ee5JSON\/YAML\u6a21\u677f\u4fdd\u5b58\uff0c\u90e8\u7f72\u65f6\u901a\u8fc7API\u4e00\u952e\u4e0b\u53d1\u81f3CDN\u63a7\u5236\u9762\u677f\u3002<\/p>\n<h3>\u8fb9\u7f18\u8ba1\u7b97\u4e0e\u7f13\u5b58\u9884\u70ed<\/h3>\n<p>\u73b0\u4ee3CDN\u652f\u6301\u8fb9\u7f18\u51fd\u6570\uff08Edge Workers\uff09\u4e0e\u7f13\u5b58\u9884\u70ed\uff08prefetch\/warm-up\uff09\u3002\u81ea\u52a8\u5316\u6d41\u7a0b\u53ef\u4ee5\u5728\u53d1\u5e03\u540e\uff1a<\/p>\n<ul>\n<li>\u89e6\u53d1\u8fb9\u7f18\u51fd\u6570\u8fdb\u884cURL\u91cd\u5199\u6216\u52a8\u6001\u7f13\u5b58\u952e\u5408\u6210\uff0c\u51cf\u5c11\u5728\u8fb9\u7f18\u7684\u8ba1\u7b97\u590d\u6742\u5ea6\u3002<\/li>\n<li>\u8c03\u7528\u9884\u70edAPI\u6279\u91cf\u8bf7\u6c42\u5173\u952e\u9875\u9762\uff0c\u4f7f\u7f13\u5b58\u5148\u884c\u52a0\u8f7d\u5230\u591a\u4e2a\u91cd\u8981POP\uff0c\u5c24\u5176\u9488\u5bf9\u9999\u6e2fVPS\u6216\u6d77\u5916\u8282\u70b9\u8bbf\u95ee\u91cf\u7a81\u589e\u7684\u573a\u666f\u975e\u5e38\u6709\u6548\u3002<\/li>\n<\/ul>\n<h3>\u76d1\u63a7\u3001\u56de\u6eda\u4e0e\u5b89\u5168\u7b56\u7565<\/h3>\n<ul>\n<li>\u76d1\u63a7\uff1a\u96c6\u6210CDN\u63d0\u4f9b\u5546\u7684\u65e5\u5fd7\uff08\u8fb9\u7f18\u65e5\u5fd7\uff09\u4e0eWeb\u6027\u80fd\u76d1\u63a7\uff08RUM\u3001Synthetic\uff09\uff0c\u901a\u8fc7\u544a\u8b66\u89e6\u53d1\u81ea\u52a8\u56de\u6eda\u6216\u91cd\u65b0\u53d1\u5e03\u7f13\u5b58\u7b56\u7565\u3002<\/li>\n<li>\u56de\u6eda\uff1a\u81ea\u52a8\u5316\u53d1\u5e03\u5e94\u652f\u6301\u7070\u5ea6\u4e0e\u56de\u6eda\u673a\u5236\uff08A\/B\u6216Canary\uff09\uff0c\u907f\u514d\u5168\u91cf\u53d8\u66f4\u5bfc\u81f4\u5927\u9762\u79ef\u7f13\u5b58\u5931\u6548\u3002<\/li>\n<li>\u5b89\u5168\uff1a\u5bf9CDN API\u8bbe\u7f6e\u6700\u5c0f\u6743\u9650\u7684API 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