{"id":32249,"date":"2025-03-04T09:47:44","date_gmt":"2025-03-04T01:47:44","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=32249"},"modified":"2025-03-04T09:47:44","modified_gmt":"2025-03-04T01:47:44","slug":"ebpf%e5%9c%a8devops%e4%b8%ad%e7%9a%84%e5%ae%9e%e8%b7%b5%e6%9c%89%e5%93%aa%e4%ba%9b%e5%85%b3%e9%94%ae%e7%82%b9%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/32249.html","title":{"rendered":"eBPF\u5728DevOps\u4e2d\u7684\u5b9e\u8df5\u6709\u54ea\u4e9b\u5173\u952e\u70b9\uff1f"},"content":{"rendered":"

\n

\"eBPF\u5728DevOps\u4e2d\u7684\u5b9e\u8df5\u6709\u54ea\u4e9b\u5173\u952e\u70b9\uff1f\"<\/p>\n<\/p>\n

\u5728\u6570\u5b57\u5316\u8f6c\u578b\u6d6a\u6f6e\u4e2d\uff0cDevOps\u56e2\u961f\u6b63\u9762\u4e34\u7740\u524d\u6240\u672a\u6709\u7684\u6311\u6218\uff1a\u5982\u4f55\u5728\u590d\u6742\u7684\u4e91\u539f\u751f\u73af\u5883\u4e2d\u5b9e\u73b0\u6beb\u79d2\u7ea7\u7684\u6545\u969c\u5b9a\u4f4d\uff1f\u5982\u4f55\u5728\u4e0d\u5f71\u54cd\u4e1a\u52a1\u6027\u80fd\u7684\u524d\u63d0\u4e0b\u5b8c\u6210\u7ec6\u7c92\u5ea6\u76d1\u63a7\uff1f\u4f20\u7edf\u76d1\u63a7\u5de5\u5177\u5e38\u56e0\u6027\u80fd\u5f00\u9500\u5927\u3001\u89c2\u6d4b\u7ef4\u5ea6\u5355\u4e00\u800c\u9677\u5165\u56f0\u5883\uff0c\u800ceBPF<\/a>\uff08Extended Berkeley Packet Filter\uff09<\/strong>\u6280\u672f\u7684\u51fa\u73b0\uff0c\u5982\u540c\u4e3a\u73b0\u4ee3\u8fd0\u7ef4\u6ce8\u5165\u4e86\u4e00\u5242\u5f3a\u5fc3\u9488\u3002\u8fd9\u9879\u8d77\u6e90\u4e8eLinux\u5185\u6838\u7684\u9769\u547d\u6027\u6280\u672f\uff0c\u6b63\u5728\u91cd\u65b0\u5b9a\u4e49\u53ef\u89c2\u6d4b\u6027\u4e0e\u7cfb\u7edf\u8c03\u4f18\u7684\u8fb9\u754c\uff0c\u6210\u4e3a\u8fde\u63a5\u5f00\u53d1\u4e0e\u8fd0\u7ef4\u5b9e\u8df5\u7684\u201c\u8d85\u80fd\u529b\u63a2\u9488\u201d\u3002<\/p>\n

\n

\u4e00\u3001\u5185\u6838\u7ea7\u89c2\u6d4b\uff1a\u91cd\u6784\u7cfb\u7edf\u53ef\u89c1\u6027\u4f53\u7cfb<\/strong><\/h3>\n

\u4f20\u7edf\u76d1\u63a7\u5de5\u5177\u5f80\u5f80\u4f9d\u8d56\u4e8e\u5e94\u7528\u5c42\u57cb\u70b9\u6216\u7cfb\u7edf\u65e5\u5fd7\u91c7\u96c6\uff0c\u8fd9\u79cd\u201c\u4e8b\u540e\u53d6\u8bc1\u201d\u6a21\u5f0f\u5728\u5fae\u670d\u52a1\u67b6\u6784\u4e2d\u663e\u5f97\u529b\u4e0d\u4ece\u5fc3\u3002eBPF<\/a>\u901a\u8fc7\u5728\u5185\u6838\u7a7a\u95f4\u76f4\u63a5\u6267\u884c\u9a8c\u8bc1\u8fc7\u7684\u7a0b\u5e8f<\/strong>\uff0c\u5b9e\u73b0\u4e86\u5bf9\u7cfb\u7edf\u8c03\u7528\u3001\u7f51\u7edc\u6d41\u91cf\u3001\u51fd\u6570\u8c03\u7528\u7b49\u6838\u5fc3\u6307\u6807\u7684\u5b9e\u65f6\u6355\u83b7\u3002<\/p>\n

\u67d0\u5934\u90e8\u7535\u5546\u5e73\u53f0\u4f7f\u7528eBPF\u7a0b\u5e8f\u8ddf\u8e2aKubernetes\u96c6\u7fa4\u4e2d\u7684TCP\u91cd\u4f20\u7387\uff0c\u4ec5\u7528200\u884c\u4ee3\u7801\u5c31\u6784\u5efa\u8d77\u8de8\u8282\u70b9\u7684\u7f51\u7edc\u62d3\u6251\u5173\u7cfb\u56fe\u3002\u8fd9\u79cd\u975e\u4fb5\u5165\u5f0f\u89c2\u6d4b<\/strong>\u4e0d\u4ec5\u5c06\u5206\u6790\u5ef6\u8fdf\u4ece\u5206\u949f\u7ea7\u538b\u7f29\u5230\u6beb\u79d2\u7ea7\uff0c\u8fd8\u907f\u514d\u4e86\u4f20\u7edf\u65b9\u6848\u5bf9\u4e1a\u52a1\u5bb9\u566830%\u4ee5\u4e0a\u7684\u6027\u80fd\u635f\u8017\u3002\u901a\u8fc7BCC\u5de5\u5177\u96c6<\/strong>\uff0c\u8fd0\u7ef4\u56e2\u961f\u80fd\u591f\u5728\u751f\u4ea7\u73af\u5883\u52a8\u6001\u6ce8\u5165\u63a2\u9488\uff0c\u7cbe\u51c6\u5b9a\u4f4d\u5230\u5bfc\u81f4API\u5ef6\u8fdf\u7684\u7279\u5b9a\u5185\u6838\u51fd\u6570\u8c03\u7528\u94fe\u3002<\/p>\n

\n

\u4e8c\u3001\u96f6\u635f\u8017\u7f51\u7edc\u8bca\u65ad\uff1a\u7a7f\u900f\u4e91\u539f\u751f\u6d41\u91cf\u8ff7\u5c40<\/strong><\/h3>\n

\u5728Service Mesh\u67b6\u6784\u4e2d\uff0c\u4e1c\u897f\u5411\u6d41\u91cf\u7684\u7206\u70b8\u5f0f\u589e\u957f\u4f7f\u5f97\u7f51\u7edc\u6027\u80fd\u4f18\u5316\u6210\u4e3aDevOps\u7684\u6838\u5fc3\u75db\u70b9\u3002eBPF\u7684XDP\uff08Express Data Path\uff09\u6280\u672f<\/strong>\u901a\u8fc7\u5728\u7f51\u5361\u9a71\u52a8\u5c42\u76f4\u63a5\u5904\u7406\u6570\u636e\u5305\uff0c\u5b9e\u73b0\u4e86\u7f51\u7edc\u8f6c\u53d1\u8def\u5f84\u7684\u6781\u81f4\u4f18\u5316\u3002<\/p>\n

\u67d0\u5168\u7403\u6d41\u5a92\u4f53\u5e73\u53f0\u901a\u8fc7\u90e8\u7f72Cilium+eBPF\u65b9\u6848\uff0c\u5c06\u670d\u52a1\u7f51\u683c\u7684CPU\u5f00\u9500\u4ece18%\u964d\u4f4e\u81f34.2%\u3002\u66f4\u5173\u952e\u7684\u662f\uff0ceBPF\u5141\u8bb8\u5728\u534f\u8bae\u89e3\u6790\u9636\u6bb5\u76f4\u63a5\u8fc7\u6ee4\u975e\u6cd5\u6d41\u91cf<\/strong>\uff0c\u4f7fDDoS\u9632\u62a4\u54cd\u5e94\u65f6\u95f4\u7f29\u77ed\u4e86400\u500d\u3002\u8fd9\u79cd\u201c\u5904\u7406\u5373\u8fc7\u6ee4\u201d\u7684\u80fd\u529b\uff0c\u8ba9\u5b89\u5168\u7b56\u7565\u7684\u6267\u884c\u4e0d\u518d\u4f9d\u8d56\u72ec\u7acb\u7684\u9632\u706b\u5899\u8bbe\u5907\uff0c\u800c\u662f\u6210\u4e3a\u57fa\u7840\u8bbe\u65bd\u7684\u5929\u7136\u5c5e\u6027\u3002<\/p>\n

\n

\u4e09\u3001\u5b89\u5168\u5de6\u79fb\uff1a\u8fd0\u884c\u65f6\u9632\u62a4\u7684\u8303\u5f0f\u9769\u65b0<\/strong><\/h3>\n

\u5728CI\/CD\u6d41\u6c34\u7ebf\u4e2d\uff0c\u5b89\u5168\u68c0\u6d4b\u5f80\u5f80\u4f5c\u4e3a\u72ec\u7acb\u73af\u8282\u5b58\u5728\uff0c\u4e0e\u8fd0\u884c\u65f6\u73af\u5883\u5b58\u5728\u65ad\u5c42\u3002eBPF\u901a\u8fc7\u5728\u5185\u6838\u5c42\u6784\u5efa\u52a8\u6001\u9632\u62a4\u5899<\/strong>\uff0c\u5b9e\u73b0\u4e86\u4ece\u4ee3\u7801\u63d0\u4ea4\u5230\u751f\u4ea7\u90e8\u7f72\u7684\u5168\u5468\u671f\u8986\u76d6\u3002<\/p>\n

\u5f00\u6e90\u9879\u76eeFalcon\u5229\u7528eBPF\u5b9e\u73b0\u4e86\u7cfb\u7edf\u8c03\u7528\u7ea7\u522b\u7684\u5f02\u5e38\u884c\u4e3a\u68c0\u6d4b<\/strong>\uff1a\u5f53\u5bb9\u5668\u7a81\u7136\u53d1\u8d77\u975e\u5e38\u89c4\u7684execve\u8c03\u7528\u65f6\uff0ceBPF\u7a0b\u5e8f\u80fd\u572850\u5fae\u79d2\u5185\u89e6\u53d1\u544a\u8b66\u5e76\u751f\u6210\u8c03\u7528\u6808\u5feb\u7167\u3002\u8fd9\u79cd\u5b9e\u65f6\u9632\u62a4\u673a\u5236\u4f7f\u6f0f\u6d1e\u5229\u7528\u7684\u6210\u529f\u7387\u4e0b\u964d\u4e8676%\uff0c\u4e14\u65e0\u9700\u4fee\u6539\u4efb\u4f55\u5e94\u7528\u4ee3\u7801\u3002\u66f4\u503c\u5f97\u5173\u6ce8\u7684\u662f\uff0c\u57fa\u4e8eeBPF\u7684\u96f6\u4fe1\u4efb\u7f51\u7edc\u6a21\u578b\uff0c\u80fd\u591f\u6839\u636e\u8fdb\u7a0b\u884c\u4e3a\u52a8\u6001\u8c03\u6574\u7f51\u7edc\u7b56\u7565\uff0c\u5b9e\u73b0\u771f\u6b63\u7684\u81ea\u9002\u5e94\u5b89\u5168\u67b6\u6784\u3002<\/p>\n

\n

\u56db\u3001\u6548\u80fd\u63d0\u5347\uff1a\u91cd\u6784\u6301\u7eed\u4ea4\u4ed8\u57fa\u7840\u8bbe\u65bd<\/strong><\/h3>\n

\u5728\u65e5\u5747\u4e07\u6b21\u90e8\u7f72\u7684\u4e92\u8054\u7f51\u4f01\u4e1a\uff0c\u8d44\u6e90\u5229\u7528\u7387\u4f18\u5316\u76f4\u63a5\u5173\u7cfb\u5230\u6570\u767e\u4e07\u7f8e\u5143\u7684\u786c\u4ef6\u6210\u672c\u3002eBPF\u7684\u81ea\u52a8\u8d1f\u8f7d\u753b\u50cf\u80fd\u529b<\/strong>\u6b63\u5728\u6539\u53d8\u8d44\u6e90\u8c03\u5ea6\u7684\u6e38\u620f\u89c4\u5219\u2014\u2014\u901a\u8fc7\u5b9e\u65f6\u8ffd\u8e2acgroup\u7ea7\u522b\u7684CPU\/\u5185\u5b58\u4f7f\u7528\u7279\u5f81\uff0c\u8c03\u5ea6\u7cfb\u7edf\u53ef\u4ee5\u667a\u80fd\u8bc6\u522b\u51faIO\u5bc6\u96c6\u578b\u4e0e\u8ba1\u7b97\u5bc6\u96c6\u578b\u5de5\u4f5c\u8d1f\u8f7d\u3002<\/p>\n

\u67d0\u91d1\u878d\u79d1\u6280\u516c\u53f8\u501f\u52a9eBPF\u6536\u96c6\u7684\u8c03\u5ea6\u5668\u5ef6\u8fdf\u6570\u636e\uff0c\u5c06Kubernetes\u7684HPA\u54cd\u5e94\u5ef6\u8fdf\u4ece15\u79d2\u7f29\u77ed\u81f32\u79d2\u3002\u5728CI\u73af\u8282\uff0c\u57fa\u4e8eeBPF\u6784\u5efa\u7684\u6784\u5efa\u7f13\u5b58\u70ed\u5ea6\u5206\u6790\u7cfb\u7edf\uff0c\u4f7f\u6d41\u6c34\u7ebf\u6267\u884c\u6548\u7387\u63d0\u5347\u4e8640%\u3002\u8fd9\u79cd\u7ec6\u7c92\u5ea6\u7684\u8d44\u6e90\u6d1e\u5bdf<\/strong>\uff0c\u8ba9\u539f\u672c\u9ed1\u76d2\u5316\u7684\u57fa\u7840\u8bbe\u65bd\u53d8\u6210\u4e86\u53ef\u7f16\u7a0b\u7684\u667a\u80fd\u5b9e\u4f53\u3002<\/p>\n

\n

\u4e94\u3001\u751f\u6001\u878d\u5408\uff1a\u6280\u672f\u7ea2\u5229\u7684\u52a0\u901f\u91ca\u653e<\/strong><\/h3>\n

eBPF\u7684\u4ef7\u503c\u5b9e\u73b0\u79bb\u4e0d\u5f00\u5f3a\u5927\u7684\u5de5\u5177\u94fe\u652f\u6301\u3002\u4eceFacebook\u5f00\u6e90\u7684Katran<\/strong>\u8d1f\u8f7d\u5747\u8861\u5668\uff0c\u5230Google\u4e3b\u5bfc\u7684Bpftrace<\/strong>\u811a\u672c\u5de5\u5177\uff0c\u5f00\u6e90\u793e\u533a\u5df2\u6784\u5efa\u8d77\u5b8c\u6574\u7684\u89c2\u6d4b\u3001\u8c03\u8bd5\u3001\u5b89\u5168\u5de5\u5177\u77e9\u9635\u3002\u503c\u5f97\u5173\u6ce8\u7684\u662f\uff0ceBPF\u4e0eWasm\u7684\u7ed3\u5408\u6b63\u5728\u50ac\u751f\u65b0\u7684\u53ef\u80fd\u6027\u2014\u2014\u5c06\u5b89\u5168\u6c99\u7bb1\u673a\u5236\u4e0e\u5185\u6838\u6269\u5c55\u80fd\u529b\u7ed3\u5408\uff0c\u4e3a\u8fb9\u7f18\u8ba1\u7b97\u573a\u666f\u63d0\u4f9b\u8f7b\u91cf\u7ea7\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n

\u884c\u4e1a\u62a5\u544a\u663e\u793a\uff0c\u91c7\u7528eBPF\u6280\u672f\u7684\u4f01\u4e1a\u5e73\u5747\u6545\u969c\u6062\u590d\u65f6\u95f4\uff08MTTR\uff09\u7f29\u77ed\u4e8658%\uff0c\u800c\u8fd0\u7ef4\u5de5\u7a0b\u5e08\u5728\u8bca\u65ad\u590d\u6742\u95ee\u9898\u65f6\u7684\u4eba\u6548\u63d0\u5347\u4e863\u500d\u4ee5\u4e0a\u3002\u8fd9\u79cd\u6548\u7387\u8dc3\u8fc1\u7684\u80cc\u540e\uff0c\u662fLinux\u57fa\u91d1\u4f1aeBPF\u4e13\u9879\u7ec4<\/strong>\u63a8\u52a8\u7684\u6807\u51c6\u7edf\u4e00\u5316\u8fdb\u7a0b\uff0c\u4ee5\u53ca\u4e91\u5382\u5546\u5728\u670d\u52a1\u7f51\u683c\u3001Serverless\u7b49\u573a\u666f\u7684\u6df1\u5ea6\u96c6\u6210\u3002<\/p>\n

\n

\u5728\u6280\u672f\u6f14\u8fdb\u7684\u5feb\u8f66\u9053\u4e0a\uff0ceBPF\u5df2\u4ece\u7f51\u7edc\u8c03\u8bd5\u7684\u8f85\u52a9\u5de5\u5177\u8715\u53d8\u4e3a\u4e91\u539f\u751f\u57fa\u7840\u8bbe\u65bd\u7684\u6838\u5fc3\u7ec4\u4ef6\u3002\u5b83\u6253\u7834\u4e86\u4f20\u7edf\u89c2\u6d4b\u5de5\u5177\u7684\u7ef4\u5ea6\u9650\u5236\uff0c\u4f7fDevOps\u56e2\u961f\u80fd\u591f\u4ee5\u201c\u5916\u79d1\u624b\u672f\u5f0f\u201d\u7684\u7cbe\u5ea6\u5904\u7406\u7cfb\u7edf\u7ea7\u95ee\u9898\u3002\u5f53\u5185\u6838\u53ef\u7f16\u7a0b\u6210\u4e3a\u65b0\u5e38\u6001\uff0c\u8fd9\u573a\u7531eBPF\u9a71\u52a8\u7684\u6548\u80fd\u9769\u547d\u624d\u521a\u521a\u62c9\u5f00\u5e8f\u5e55\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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