{"id":36084,"date":"2025-03-26T14:15:11","date_gmt":"2025-03-26T06:15:11","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=36084"},"modified":"2025-03-26T14:15:11","modified_gmt":"2025-03-26T06:15:11","slug":"ebpf%e5%9c%a8%e4%ba%91%e5%8e%9f%e7%94%9f%e6%8a%80%e6%9c%af%e4%b8%ad%e7%9a%84%e4%bd%9c%e7%94%a8%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/36084.html","title":{"rendered":"eBPF\u5728\u4e91\u539f\u751f\u6280\u672f\u4e2d\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p style=\"text-align: center;\">\n<p><img decoding=\"async\" src=\"https:\/\/www.yunshan.net\/blog\/wp-content\/uploads\/2025\/03\/z1Ceh0FJ.jpg\" alt=\"eBPF\u5728\u4e91\u539f\u751f\u6280\u672f\u4e2d\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f\" ><\/p>\n<\/p>\n<p>\u3010\u524d\u8a00\u3011<br \/>\n\u5728\u6570\u5b57\u5316\u8f6c\u578b\u7684\u6d6a\u6f6e\u4e2d\uff0c\u4e91\u539f\u751f\u6280\u672f\u6b63\u4ee5\u60ca\u4eba\u7684\u901f\u5ea6\u91cd\u5851\u73b0\u4ee3IT\u67b6\u6784\u3002Kubernetes\u3001\u5fae\u670d\u52a1\u3001\u5bb9\u5668\u5316\u7b49\u6280\u672f\u5df2\u6210\u4e3a\u4f01\u4e1a\u6784\u5efa\u5f39\u6027\u7cfb\u7edf\u7684\u57fa\u77f3\uff0c\u4f46\u968f\u4e4b\u800c\u6765\u7684\u590d\u6742\u6027\u4e5f\u5728\u6210\u500d\u589e\u957f\u2014\u2014\u7f51\u7edc\u6027\u80fd\u74f6\u9888\u3001\u5b89\u5168\u6f0f\u6d1e\u96be\u4ee5\u8ffd\u8e2a\u3001\u7cfb\u7edf\u53ef\u89c2\u6d4b\u6027\u4e0d\u8db3\u7b49\u95ee\u9898\u9891\u9891\u6d8c\u73b0\u3002\u6b64\u65f6\uff0c\u4e00\u4e2a\u8bde\u751f\u4e8eLinux\u5185\u6838\u7684&rdquo;\u8d85\u80fd\u529b&rdquo;\u5de5\u5177\u2014\u2014<strong><a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">eBPF<\/a><\/strong>\uff08Extended Berkeley Packet Filter\uff09\uff0c\u6b63\u5728\u6084\u7136\u6539\u5199\u4e91\u539f\u751f\u7684\u6e38\u620f\u89c4\u5219\u3002\u5b83\u50cf\u4e00\u5f20\u9690\u5f62\u7684\u63a2\u7f51\uff0c\u65e2\u80fd\u6df1\u5165\u5185\u6838\u5c42\u6355\u83b7\u5173\u952e\u6570\u636e\uff0c\u53c8\u80fd\u4ee5\u96f6\u4fb5\u5165\u7684\u65b9\u5f0f\u8d4b\u80fd\u5b89\u5168\u4e0e\u6027\u80fd\u4f18\u5316\u3002\u672c\u6587\u5c06\u63ed\u5f00<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">eBPF<\/a>\u5982\u4f55\u6210\u4e3a\u4e91\u539f\u751f\u65f6\u4ee3\u7684&rdquo;\u745e\u58eb\u519b\u5200&rdquo;\uff0c\u89e3\u6790\u5176\u5728\u53ef\u89c2\u6d4b\u6027\u3001\u5b89\u5168\u9632\u62a4\u3001\u7f51\u7edc\u52a0\u901f\u7b49\u573a\u666f\u4e2d\u7684\u9769\u547d\u6027\u4ef7\u503c\u3002<\/p>\n<hr>\n<h3 id=\"\u4e00-\u5185\u6838\u7ea7\u53ef\u89c2\u6d4b\u6027-\u7a7f\u900f\u5bb9\u5668\u8ff7\u96fe\u7684x\u5149\"><strong>\u4e00\u3001\u5185\u6838\u7ea7\u53ef\u89c2\u6d4b\u6027\uff1a\u7a7f\u900f\u5bb9\u5668\u8ff7\u96fe\u7684X\u5149<\/strong><\/h3>\n<p>\u4e91\u539f\u751f\u73af\u5883\u4e2d\uff0c\u5bb9\u5668\u4e0e\u5fae\u670d\u52a1\u7684\u52a8\u6001\u6027\u8ba9\u4f20\u7edf\u7684\u76d1\u63a7\u5de5\u5177\u6349\u895f\u89c1\u8098\u3002\u5f53\u5e94\u7528\u5b9e\u4f8b\u6bcf\u79d2\u90fd\u53ef\u80fd\u88ab\u8c03\u5ea6\u5230\u4e0d\u540c\u8282\u70b9\u65f6\uff0c\u57fa\u4e8e\u65e5\u5fd7\u6216\u4ee3\u7406\u7684\u76d1\u63a7\u65b9\u6848\u5f80\u5f80\u6ede\u540e\u751a\u81f3\u5931\u6548\u3002<strong>eBPF\u7684\u7a81\u7834\u6027\u5728\u4e8e\uff0c\u5b83\u5141\u8bb8\u7528\u6237\u5728\u5185\u6838\u7a7a\u95f4\u52a8\u6001\u6ce8\u5165\u63a2\u9488<\/strong>\uff0c\u76f4\u63a5\u6355\u83b7\u7cfb\u7edf\u8c03\u7528\u3001\u7f51\u7edc\u6d41\u91cf\u3001\u51fd\u6570\u6267\u884c\u7b49\u5e95\u5c42\u4e8b\u4ef6\uff0c\u800c\u65e0\u9700\u4fee\u6539\u5e94\u7528\u4ee3\u7801\u6216\u91cd\u542f\u670d\u52a1\u3002<\/p>\n<p>\u4ee5<strong>Cilium<\/strong>\u4e3a\u4f8b\uff0c\u8fd9\u6b3e\u57fa\u4e8eeBPF\u7684CNI\uff08\u5bb9\u5668\u7f51\u7edc\u63a5\u53e3\uff09\u63d2\u4ef6\uff0c\u80fd\u591f\u5b9e\u65f6\u7ed8\u5236\u5bb9\u5668\u95f4\u7684\u901a\u4fe1\u62d3\u6251\u56fe\uff0c\u7cbe\u786e\u7edf\u8ba1\u6bcf\u4e2aPod\u7684TCP\u91cd\u4f20\u7387\u3001\u4e22\u5305\u7387\u7b49\u6307\u6807\u3002\u76f8\u6bd4\u4f20\u7edfiptables\u65b9\u6848\uff0c\u5b83\u7684\u6570\u636e\u91c7\u96c6\u5ef6\u8fdf\u964d\u4f4e\u4e8610\u500d\u4ee5\u4e0a\u3002\u8fd9\u79cd\u5185\u6838\u5c42\u7684\u53ef\u89c1\u6027\uff0c\u4f7f\u5f97\u5f00\u53d1\u8005\u5728\u6392\u67e5\u8de8\u670d\u52a1\u8c03\u7528\u6545\u969c\u65f6\uff0c\u80fd\u50cf\u5916\u79d1\u624b\u672f\u822c\u7cbe\u51c6\u5b9a\u4f4d\u5230\u5177\u4f53\u7684\u5185\u6838\u51fd\u6570\u8c03\u7528\u5f02\u5e38\u3002<\/p>\n<p>\u66f4\u5f15\u4eba\u6ce8\u76ee\u7684\u662f\uff0ceBPF\u7a0b\u5e8f\u53ef\u4ee5<strong>\u4e0e<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">Prometheus<\/a>\u3001Grafana\u7b49\u4e91\u539f\u751f\u76d1\u63a7\u6808\u65e0\u7f1d\u96c6\u6210<\/strong>\u3002\u5f00\u6e90\u9879\u76eePixie\u901a\u8fc7eBPF\u81ea\u52a8\u91c7\u96c6Kubernetes\u96c6\u7fa4\u7684\u5168\u94fe\u8def\u6307\u6807\uff0c\u751a\u81f3\u80fd\u8fd8\u539f\u5355\u4e2aHTTP\u8bf7\u6c42\u5728\u8282\u70b9\u3001\u5bb9\u5668\u3001\u8fdb\u7a0b\u95f4\u7684\u5b8c\u6574\u751f\u547d\u5468\u671f\u3002\u8fd9\u79cd&rdquo;\u65e0\u57cb\u70b9\u76d1\u63a7&rdquo;\u5f7b\u5e95\u6539\u53d8\u4e86\u8fd0\u7ef4\u4eba\u5458\u9700\u8981\u624b\u52a8\u63d2\u6869\u7684\u56f0\u5883\u3002<\/p>\n<hr>\n<h3 id=\"\u4e8c-\u96f6\u4fe1\u4efb\u5b89\u5168\u7684\u9690\u5f62\u76fe\u724c\"><strong>\u4e8c\u3001\u96f6\u4fe1\u4efb\u5b89\u5168\u7684\u9690\u5f62\u76fe\u724c<\/strong><\/h3>\n<p>\u4e91\u539f\u751f\u7684\u591a\u79df\u6237\u67b6\u6784\u653e\u5927\u4e86\u5b89\u5168\u98ce\u9669\uff0c\u4f20\u7edf\u57fa\u4e8e\u8fb9\u754c\u7684\u9632\u706b\u5899\u7b56\u7565\u5728\u5bb9\u5668\u9891\u7e41\u521b\u5efa\u9500\u6bc1\u7684\u573a\u666f\u4e2d\u5f62\u540c\u865a\u8bbe\u3002<strong>eBPF\u901a\u8fc7\u5185\u6838\u7ea7\u7684\u7b56\u7565\u6267\u884c\uff0c\u4e3a\u4e91\u539f\u751f\u5b89\u5168\u63d0\u4f9b\u4e86\u539f\u5b50\u7c92\u5ea6\u7684\u63a7\u5236\u80fd\u529b<\/strong>\u3002<\/p>\n<p>\u5b89\u5168\u5de5\u5177<strong>Falco<\/strong>\u6b63\u662f\u8fd9\u4e00\u7406\u5ff5\u7684\u5178\u8303\u3002\u5b83\u5229\u7528eBPF\u5b9e\u65f6\u76d1\u63a7\u5bb9\u5668\u7684\u7cfb\u7edf\u8c03\u7528\uff0c\u5f53\u68c0\u6d4b\u5230&rdquo;\u53ef\u7591\u6587\u4ef6\u6302\u8f7d&rdquo;\u6216&rdquo;\u7279\u6743\u5bb9\u5668\u542f\u52a8&rdquo;\u65f6\uff0c\u80fd\u5728\u6beb\u79d2\u7ea7\u89e6\u53d1\u544a\u8b66\u6216\u963b\u65ad\u52a8\u4f5c\u3002\u76f8\u6bd4\u57fa\u4e8e\u7528\u6237\u7a7a\u95f4\u7684HIDS\uff08\u4e3b\u673a\u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf\uff09\uff0ceBPF\u65b9\u6848\u7684\u6027\u80fd\u635f\u8017\u964d\u4f4e\u4e8690%\uff0c\u4e14\u653b\u51fb\u8005\u66f4\u96be\u7ed5\u8fc7\u5185\u6838\u5c42\u7684\u68c0\u6d4b\u903b\u8f91\u3002<\/p>\n<p>\u5728\u96f6\u4fe1\u4efb\u7f51\u7edc\u9886\u57df\uff0ceBPF\u540c\u6837\u5927\u663e\u8eab\u624b\u3002<strong>Cilium Tetragon<\/strong>\u901a\u8fc7\u52a8\u6001\u751f\u6210\u8fdb\u7a0b\u8840\u7f18\u56fe\u8c31\uff0c\u53ef\u81ea\u52a8\u8bc6\u522b\u5bb9\u5668\u5185\u5f02\u5e38\u8fdb\u7a0b\u6d3e\u751f\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u5f53\u67d0\u4e2aWeb\u670d\u52a1\u5668\u7a81\u7136\u542f\u52a8bash shell\u65f6\uff0c\u7cfb\u7edf\u80fd\u7acb\u5373\u7ec8\u6b62\u4f1a\u8bdd\u5e76\u751f\u6210\u5ba1\u8ba1\u65e5\u5fd7\u3002\u8fd9\u79cd\u7ec6\u7c92\u5ea6\u7684\u5b89\u5168\u63a7\u5236\uff0c\u8ba9&rdquo;\u6700\u5c0f\u6743\u9650\u539f\u5219&rdquo;\u771f\u6b63\u843d\u5730\u5230\u6bcf\u4e00\u4e2a\u7cfb\u7edf\u8c03\u7528\u3002<\/p>\n<hr>\n<h3 id=\"\u4e09-\u7f51\u7edc\u6027\u80fd\u7684\u6da1\u8f6e\u589e\u538b\u5668\"><strong>\u4e09\u3001\u7f51\u7edc\u6027\u80fd\u7684\u6da1\u8f6e\u589e\u538b\u5668<\/strong><\/h3>\n<p>Kubernetes\u96c6\u7fa4\u4e2d\uff0cService Mesh\u548cSidecar\u4ee3\u7406\u5e26\u6765\u7684\u7f51\u7edc\u5ef6\u8fdf\u4e00\u76f4\u662f\u6027\u80fd\u4f18\u5316\u7684\u75db\u70b9\u3002\u4f20\u7edf\u65b9\u6848\u901a\u8fc7iptables\u6216\u7528\u6237\u7a7a\u95f4\u4ee3\u7406\u5b9e\u73b0\u6d41\u91cf\u8f6c\u53d1\uff0c\u4f46\u989d\u5916\u5185\u6838\u4e0a\u4e0b\u6587\u5207\u6362\u5bfc\u81f4\u541e\u5410\u91cf\u53d7\u9650\u3002<strong>eBPF\u901a\u8fc7\u7ed5\u8fc7\u5185\u6838\u534f\u8bae\u6808\uff0c\u5c06\u7f51\u7edc\u5904\u7406\u903b\u8f91\u7f16\u8bd1\u6210\u5b57\u8282\u7801\u76f4\u901a\u786c\u4ef6<\/strong>\uff0c\u5f00\u8f9f\u4e86\u4e00\u6761\u6027\u80fd\u8dc3\u5347\u7684&rdquo;\u8d85\u8f66\u9053&rdquo;\u3002<\/p>\n<p>\u5b9e\u6d4b\u6570\u636e\u663e\u793a\uff0c\u57fa\u4e8eeBPF\u7684<strong>Cilium Hubble<\/strong>\u5728TCP\u541e\u5410\u91cf\u4e0a\u6bd4kube-proxy\u63d0\u534740%\uff0c\u800c\u5c3e\u90e8\u5ef6\u8fdf\uff08Tail 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