{"id":2527,"date":"2024-02-07T21:20:25","date_gmt":"2024-02-07T13:20:25","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=2527"},"modified":"2024-02-07T21:20:25","modified_gmt":"2024-02-07T13:20:25","slug":"%e6%8e%a2%e7%b4%a2%e5%9f%ba%e4%ba%8e-ebpf-%e7%9a%84%e5%8f%af%e8%a7%82%e6%b5%8b%e6%80%a7%ef%bc%9a%e4%bb%8e%e7%90%86%e8%ae%ba%e5%88%b0%e5%ae%9e%e8%b7%b5%ef%bc%81","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/2527.html","title":{"rendered":"\u63a2\u7d22\u57fa\u4e8e eBPF \u7684\u53ef\u89c2\u6d4b\u6027\uff1a\u4ece\u7406\u8bba\u5230\u5b9e\u8df5\uff01"},"content":{"rendered":"\n\t\t\t\t<![CDATA[\n<p>\u672c\u6b21\u6d3b\u52a8\u7684\u4e3b\u9898\u4e3a\u300a\u57fa\u4e8eeBPF\u7684\u53ef\u89c2\u6d4b\u6027\u5b9e\u8df5\u300b\uff0c\u6f14\u8bb2\u8005\u548c\u4e0e\u4f1a\u8005\u5171\u540c\u63a2\u8ba8\u4e86\u5982\u4f55\u63d0\u9ad8\u7cfb\u7edf\u3001\u5e94\u7528\u548c\u670d\u52a1\u7684\u53ef\u89c2\u6d4b\u6027\u3002\u5177\u5907\u53ef\u89c2\u6d4b\u6027\u53ef\u4ee5\u5e2e\u52a9\u4f01\u4e1a\u66f4\u5feb\u5730\u53d1\u73b0\u548c\u89e3\u51b3\u95ee\u9898\uff0c\u4fdd\u969c\u7cfb\u7edf\u7684\u53ef\u9760\u548c\u7a33\u5b9a\u3002<br \/> <strong>\u4e13\u5bb6\u89e3\u8bfb\uff1a\u57fa\u4e8e eBPF \u7684\u53ef\u89c2\u6d4b\u6027\u5b9e\u8df5<\/strong><br \/> \u5728\u4e13\u5bb6\u8bb2\u5ea7\u73af\u8282\uff0c6\u4f4d\u4e1a\u5185\u4e13\u5bb6\u5c31\u53ef\u89c2\u6d4b\u6027\u7684\u4e0d\u540c\u65b9\u9762\u8fdb\u884c\u4e86\u6df1\u5165\u6d45\u51fa\u7684\u8bb2\u89e3\uff0c\u5e76\u5206\u4eab\u4e86\u751f\u52a8\u7684\u5b9e\u8df5\u6848\u4f8b\uff0c\u5c55\u793a\u4e86\u53ef\u89c2\u6d4b\u6027\u5982\u4f55\u5728\u5b9e\u9645\u5de5\u4f5c\u4e2d\u53d1\u6325\u4f5c\u7528\uff0c\u8ba9\u4e0e\u4f1a\u8005\u4e86\u89e3\u5230\u8be5\u9886\u57df\u7684\u6700\u65b0\u6280\u672f\u548c\u6781\u5177\u4ee3\u8868\u6027\u7684\u5b9e\u8df5\u7ecf\u9a8c\u3002<br \/> \u9996\u5148\uff0c\u4e3b\u6301\u4eba\u5f15\u51fa \u201c\u843d\u5730\u53ef\u89c2\u6d4b\u6027\u7684\u4e3b\u8981\u75db\u70b9\u548c\u6311\u6218\u6709\u54ea\u4e9b\u201d\uff1f<br \/> \u5f15\u53d1\u4e86\u5609\u5bbe\u4eec\u7eb7\u7eb7\u9610\u8ff0\u4e86\u81ea\u5df1\u7684\u89c2\u70b9\uff0c\u5982\u968f\u7740\u5206\u5e03\u5f0f\u7cfb\u7edf\u65e5\u76ca\u590d\u6742\uff0c\u6d77\u91cf\u96c6\u7fa4\u3001\u591a\u4e2d\u5fc3\u89c2\u6d4b\u3001\u5de5\u5177\u8054\u52a8\u5f31\u7b49\u5bf9\u53ef\u89c2\u6d4b\u6027\u7684\u5b9e\u65bd\u90fd\u63d0\u51fa\u4e86\u66f4\u9ad8\u7684\u8981\u6c42\u3002<br \/> \u65b9\u6d77\u6d9b\u8ba4\u4e3a\uff0c\u5bf9\u4e8e Sealos \u6765\u8bf4\u96f6\u4fb5\u6270\u7684\u53ef\u89c2\u6d4b\u6027\u53ef\u5feb\u901f\u9ad8\u6548\u5730\u89e3\u51b3\u5728\u6784\u5efa\u4e91\u670d\u52a1\u4e2d\u5bf9\u4e91\u8d44\u6e90\u6d88\u8017\uff08\u7279\u522b\u662f\u7f51\u7edc\u5e26\u5bbd\u6d88\u8017\uff09\u7684\u8ba1\u91cf\u8ba1\u8d39\u9700\u6c42\uff0c\u540c\u65f6\u4e5f\u80fd\u5b9e\u73b0\u5bf9\u4e91\u81ea\u8eab\u7684\u5b89\u5168\u53ef\u89c2\u6d4b\u6027\u3002\u5728\u6b64\u8fc7\u7a0b\u4e2d\u5c1d\u8bd5\u8fc7\u8bf8\u591a\u65b9\u5f0f\uff0c\u589e\u52a0\u7528\u6237\u6001\u7684Proxy\uff0c\u589e\u52a0 K8s CNI \u80fd\u529b\u7b49\u7b49\u65b9\u5f0f\u6765\u66b4\u9732\u6307\u6807\u6570\u636e\uff0c\u6700\u7ec8\u53d1\u73b0 eBPF \u7684\u5f62\u5f0f\u5bf9\u6027\u80fd\u6d88\u8017\u662f\u6700\u4f4e\u7684\u3002<br \/> \u51af\u5bcc\u79cb\u8c08\u5230\u5728\u963f\u91cc\u4e91\u4e1a\u52a1\u9ad8\u654f\u611f\u60c5\u51b5\u4e0b\uff0c\u76d1\u63a7\u5de5\u5177\u518d\u591a\u4e5f\u96be\u4ee5\u505a\u5230\u9ad8\u6548\u54cd\u5e94\uff0c\u6709\u65f6\u53cd\u800c\u8ff7\u5931\u5728\u5de5\u5177\u4e2d\uff0c\u6700\u540e\u4f9d\u7136\u53ea\u80fd\u4f9d\u9760\u4e13\u5bb6\u7ecf\u9a8c\u6765\u5b9a\u4f4d\u95ee\u9898\u3002\u4ed6\u8ba4\u4e3a\u53ef\u89c2\u6d4b\u6027\u662f\u4e00\u4e2a\u5f88\u6709\u524d\u666f\u7684\u65b9\u5411\uff0c\u4f46\u4ecd\u7136\u8fd8\u5904\u4e8e\u8d77\u6b65\u9636\u6bb5\uff0c\u4f8b\u5982\u7f3a\u4e4f\u6807\u51c6\u7684 Trace \u70b9\u3001\u4ec5\u80fd\u5173\u6ce8\u4e1a\u52a1\u5c42\u9762\u7684\u95ee\u9898\u5b9a\u4f4d\uff0c\u6df1\u5165\u5206\u6790\u7cfb\u7edf\u548c\u7f51\u7edc\u5c42\u5f88\u4e0d\u8db3\u3002\u672a\u6765\u4e5f\u5728\u8ba1\u5212\u7531\u9f99\u8725\u793e\u533a\u7275\u5934\u7ec4\u5efa\u8fd0\u7ef4\u8054\u76df\uff0c\u8054\u5408\u53ef\u89c2\u6d4b\u6027\u9886\u57df\u7684\u4f01\u4e1a\u6765\u5171\u540c\u7814\u8ba8\u8fd9\u4e9b\u95ee\u9898\u3002<br \/> \u7a46\u666f\u8fdc\u5f3a\u8c03\u4e86\u53ef\u89c2\u6d4b\u6027\u843d\u5730\u8fc7\u7a0b\u4e2d\u7684\u5206\u6b67\u70b9\uff0c\u7b2c\u4e00\u7531\u4e8e\u4e1a\u52a1\u5206\u5e03\u5f0f\u90e8\u7f72\uff0c\u5355\u8282\u70b9\u9010\u6b65\u5347\u7ea7\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u5b64\u5c9b\u4e0e\u5168\u91cf\u8282\u70b9\u5347\u7ea7\u5e26\u6765\u7528\u6237\u4e60\u60ef\u6539\u53d8\u53ca\u73b0\u7f51\u98ce\u9669\u7684\u5206\u6b67\uff1b\u7b2c\u4e8c\u4e3a\u6295\u5165\u4e0e\u6536\u76ca\u7684\u53cd\u5dee\uff0c\u5382\u5546\u505a\u4e86\u5927\u91cf\u6295\u5165\u4f46\u4e1a\u52a1\u65b9\u611f\u77e5\u751a\u5fae\u7684\u5206\u6b67\u3002<br \/> \u5176\u6b21\uff0c\u4e3b\u6301\u4eba\u5411\u5609\u5bbe\u63d0\u51fa \u201c eBPF \u6280\u672f\u5bf9\u8fd9\u4e9b\u75db\u70b9\u6709\u4ec0\u4e48\u5e2e\u52a9\u201c\uff1f<br \/> \u5609\u5bbe\u4eec\u8868\u793a\uff1aeBPF\u53ef\u4ee5\u63d0\u4f9b\u66f4\u9ad8\u6548\u548c\u51c6\u786e\u7684\u7cfb\u7edf\u89c2\u6d4b\u80fd\u529b\u3002\u5728Linux\u5185\u6838\u4e2d\uff0ceBPF\u6d88\u9664\u4e86\u66f4\u6539\u5185\u6838\u6e90\u4ee3\u7801\u6216\u6dfb\u52a0\u5185\u6838\u6a21\u5757\u7684\u9700\u8981\u3002\u8fd9\u610f\u5473\u7740\uff0c\u901a\u8fc7\u4f7f\u7528eBPF\uff0c\u6211\u4eec\u80fd\u591f\u96f6\u4fb5\u6270\u5730\u76d1\u63a7\u7cfb\u7edf\u7684\u5404\u79cd\u6d3b\u52a8\u548c\u72b6\u6001\uff0c\u5305\u62ec\u8c03\u7528\u5173\u7cfb\u3001\u5e94\u7528\u6027\u80fd\u3001\u5206\u5e03\u5f0f\u94fe\u8def\u3001\u51fd\u6570\u6027\u80fd\u5256\u6790\u3001\u5185\u6838\u6027\u80fd\u5256\u6790\u7b49\u7b49\u3002<br \/> \u5411\u9633\u63d0\u5230\uff0c\u4e00\u65b9\u9762 eBPF \u786e\u5b9e\u4f9d\u8d56\u8f83\u9ad8\u7684\u5185\u6838\u7248\u672c\uff0c\u671f\u671b\u7528\u6237\u80fd\u5c3d\u5feb\u63a8\u8fdb\u5185\u6838\u5347\u7ea7\uff0c\u671f\u671b\u64cd\u4f5c\u7cfb\u7edf\u4f9b\u5e94\u5546\u80fd\u5c06\u66f4\u591a\u80fd\u529b\u79fb\u690d\u5230\u4f4e\u7248\u672c\u5185\u6838\u4e2d\uff0c\u540c\u65f6 DeepFlow \u4e5f\u5229\u7528 cBPF \u7684\u80fd\u529b\u5728\u4f4e\u7248\u672c\u5185\u6838\u4e2d\u5b9e\u73b0\u4e86\u5927\u91cf\u96f6\u4fb5\u6270\u7684\u53ef\u89c2\u6d4b\u6027\u529f\u80fd\u3002\u53e6\u4e00\u65b9\u9762\uff0ceBPF\u79bb\u5b9e\u73b0\u4e1a\u52a1\u7684\u53ef\u89c2\u6d4b\u6027\u6709\u4e00\u4e9b\u8ddd\u79bb\uff0c\u4ee5\u5f80\u90fd\u662f\u901a\u8fc7\u4e1a\u52a1\u5f00\u53d1\u63d2\u6869\u6765\u5b9e\u73b0\uff0c\u53ef\u4ee5\u901a\u8fc7\u7ed3\u5408 eBPF \u548c Wasm \u6280\u672f\u6765\u5b9e\u73b0\u5bf9\u4e1a\u52a1\u8bed\u4e49\u7684\u611f\u77e5\u548c\u6ce8\u5165\u3002<br \/> \u7a46\u666f\u8fdc\u8ba4\u4e3a eBPF \u53ef\u4ee5\u7528\u96f6\u4fb5\u6270\u3001\u4e1a\u52a1\u89e3\u8026\u7684\u65b9\u5f0f\u6765\u89e3\u51b3\u5b9e\u9645\u53ef\u89c2\u6d4b\u6027\u843d\u5730\u8fc7\u7a0b\u4e2d\u524d\u9762\u63d0\u5230\u7684\u4e24\u4e2a\u5206\u6b67\uff0c\u53ef\u4ee5\u5c06\u5382\u5546\u7684\u6295\u5165\u548c\u98ce\u9669\u964d\u4f4e\uff0c\u4e1a\u52a1\u65b9\u7684\u6536\u76ca\u663e\u8457\u589e\u52a0\uff0c\u5bf9\u5ba2\u6237\u6765\u8bf4\u63a8\u52a8\u529b\u4e5f\u5f88\u8db3\u3002\u5bf9\u4e8e eBPF \u7684\u95e8\u69db\uff0c\u8ba4\u4e3a\u4e1a\u754c\u73b0\u5728\u5df2\u7ecf\u5f62\u6210\u4e86\u5929\u7136\u7684\u5206\u5de5\uff0c\u653f\u91c7\u4e91\u63d0\u4f9b\u7528\u6237\u573a\u666f\uff0c\u64cd\u4f5c\u7cfb\u7edf\u5382\u5546\u63d0\u4f9b\u5bf9\u5e94\u7684\u5de5\u5177\u94fe\uff0c\u4e13\u4e1a\u7684\u5382\u5546\u63d0\u4f9b\u6574\u5957\u89e3\u51b3\u65b9\u6848\uff0c\u8fd9\u79cd\u7ec4\u5408\u4e5f\u4f1a\u5927\u5927\u964d\u4f4e eBPF \u7684\u95e8\u69db\uff0c\u6700\u7ec8\u90fd\u4ee5\u89e3\u51b3\u7528\u6237\u9700\u6c42\u4e3a\u63a8\u52a8\u3002<br \/> \u63a5\u7740\u4e0a\u4e00\u4e2a\u95ee\u9898\uff0c\u4e3b\u6301\u4eba\u4e0e\u5609\u5bbe\u63a2\u8ba8\u4e86 \u201c eBPF \u6280\u672f\u7684\u63a8\u5e7f\u3001\u843d\u5730\u3001\u63a5\u53d7\u76ee\u524d\u5b58\u5728\u54ea\u4e9b\u95ee\u9898\u201d\u3002<br \/> \u7a46\u666f\u8fdc\u603b\u7ed3\uff1a\u6280\u672f\u9009\u578b\u4e00\u5b9a\u8981\u7ed3\u5408\u56e2\u961f\u76ee\u524d\u7684\u5b9e\u9645\u60c5\u51b5\uff0c\u653f\u91c7\u4e91\u901a\u8fc7\u878d\u5408 DeepFlow \u548c Pinpoint \u6709\u6548\u7684\u907f\u514d\u4e86\u5bf9\u4e1a\u52a1\u56e2\u961f\u4f7f\u7528\u4e60\u60ef\u7684\u6539\u53d8\uff0c\u907f\u514d\u4e86\u5bf9\u63d2\u6869\u63a2\u9488\u7684\u66ff\u6362\uff0c\u540c\u65f6\u5229\u7528 eBPF \u7684\u96f6\u4fb5\u6270\u6027\u6d88\u9664\u4e86\u8ffd\u8e2a\u76f2\u70b9\u3001\u6253\u901a\u4e86\u5b64\u5c9b\u6570\u636e\u3002<br \/> \u6700\u540e\uff0c\u672c\u6b21\u5706\u684c\u8ba8\u8bba\u73af\u8282\u6df1\u5316\u4e86\u4e0e\u4f1a\u8005\u5bf9\u4e8e\u53ef\u89c2\u6d4b\u6027\u5f53\u524d\u6311\u6218\u548c\u672a\u6765\u8d8b\u52bf\u7684\u7406\u89e3\u3002<br \/> \u5927\u5bb6\u5171\u8bc6\u2014\u2014\u53ef\u89c2\u6d4b\u6027\u5bf9\u4e8e\u73b0\u4ee3\u4f01\u4e1a\u548c\u7ec4\u7ec7\u6765\u8bf4\u81f3\u5173\u91cd\u8981\uff0c\u80fd\u591f\u5e2e\u52a9\u4ed6\u4eec\u66f4\u5feb\u5730\u53d1\u73b0\u548c\u89e3\u51b3\u95ee\u9898\uff0c\u63d0\u9ad8\u7cfb\u7edf\u7684\u53ef\u9760\u6027\u548c\u7a33\u5b9a\u6027\u3002\u901a\u8fc7\u5b9e\u65f6\u76d1\u63a7\u548c\u6570\u636e\u5206\u6790\uff0c\u7ec4\u7ec7\u53ef\u4ee5\u8fc5\u901f\u4e86\u89e3\u7cfb\u7edf\u6216\u670d\u52a1\u7684\u72b6\u6001\u548c\u8868\u73b0\uff0c\u53ca\u65f6\u53d1\u73b0\u6f5c\u5728\u95ee\u9898\uff0c\u5e76\u91c7\u53d6\u76f8\u5e94\u7684\u63aa\u65bd\u8fdb\u884c\u4f18\u5316\u548c\u6539\u8fdb\u3002<br \/> 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