{"id":8593,"date":"2022-05-25T17:02:00","date_gmt":"2022-05-25T09:02:00","guid":{"rendered":"https:\/\/blog.ywdevops.cn\/?p=8593"},"modified":"2023-04-07T14:33:48","modified_gmt":"2023-04-07T06:33:48","slug":"calico","status":"publish","type":"post","link":"https:\/\/blog.ywdevops.cn\/index.php\/2022\/05\/25\/calico\/","title":{"rendered":"Calico\u7f51\u7edc\u89e3\u51b3\u65b9\u6848"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Calico\u662f\u4e00\u79cd\u5bb9\u5668\u95f4\u7684\u7f51\u7edc\u901a\u4fe1\u65b9\u6848\uff0c\u540c\u65f6\u63d0\u4f9b\u9694\u79bb\u4e0e\u7ba1\u63a7\u673a\u5236<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Calico\u8bbe\u8ba1\u4f18\u52bf\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Calico\u91c7\u7528\u4e09\u5c42\u8def\u7531\u65b9\u6cd5(\u6240\u6709\u6570\u636e\u5305\u90fd\u662f\u901a\u8fc7\u8def\u7531\u7684\u5f62\u5f0f\u627e\u5230\u5bf9\u5e94\u7684\u4e3b\u673a\u548c\u5bb9\u5668\u7684)\uff0c\u6291\u5236\u4e86\u4e8c\u5c42\u5e7f\u64ad\uff0c\u51cf\u5c11\u4e86\u8d44\u6e90\u5f00\u9500\uff0c\u4f20\u7edf\u4e8c\u5c42\u7f51\u7edc\u9700\u8981\u4f9d\u8d56\u5e7f\u64ad\u6d88\u606f\u673a\u5236\uff0c\u5e76\u4f7f\u7528vlan\u5e7f\u64ad\u57df\u9694\u79bb\u6280\u672f\uff0c\u4f46\u662f\u67094096\u4e2a\u89c4\u683c\u9650\u5236\uff0cvxlan\u53ef\u4ee5\u63d0\u9ad8\u89c4\u683c\uff0c\u4f46\u662f\u96a7\u9053\u5f00\u9500\u4e25\u91cd<\/li>\n\n\n\n<li>\u53ef\u6269\u5c55\u6027\u66f4\u5f3a<\/li>\n\n\n\n<li>\u4f9d\u8d56\u6027\u8f83\u5c11<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Calico\u4e3b\u8981\u5de5\u4f5c\u7ec4\u4ef6\uff1a<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001Felix\uff1a\u8fd0\u884c\u4e8e\u6bcf\u4e2a\u4e3b\u673a\u4e0a\u7684agent\u8fdb\u7a0b\uff0c\u8d1f\u8d23\u4e3a\u5bb9\u5668\u8bbe\u7f6e\u7f51\u7edc\u8d44\u6e90\uff08IP\u5730\u5740\u3001\u8def\u7531\u89c4\u5219\u3001iptables\u89c4\u5219\u7b49\uff09\uff0c\u4fdd\u8bc1\u8de8\u4e3b\u673a\u5bb9\u5668\u7f51\u7edc<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"709\" height=\"91\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/2-7.png\" alt=\"\" class=\"wp-image-8597\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/2-7.png 709w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/2-7-300x39.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/2-7-600x77.png 600w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001etcd\uff1aCalico\u4f7f\u7528\u7684\u540e\u7aef\u5b58\u50a8\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528kubernetes API\u6570\u636e\u5b58\u50a8(\u63a8\u8350)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3\u3001BGP Client(BIRD)\uff1aCalico\u5728\u6bcf\u4e2a\u8282\u70b9\u90e8\u7f72\u4e00\u4e2aBGPClient\uff0c\u76d1\u542c\u4e3b\u673a\u4e0aFelix\u6ce8\u5165\u7684\u8def\u7531\u4fe1\u606f\uff0c\u7136\u540e\u901a\u8fc7BGP\u534f\u8bae\u5e7f\u64ad\u544a\u77e5\u5176\u4f59\u4e3b\u673a\u8282\u70b9\uff0c\u5b9e\u73b0\u7f51\u7edc\u4e92\u901a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"706\" height=\"126\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/3-9.png\" alt=\"\" class=\"wp-image-8600\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/3-9.png 706w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/3-9-300x54.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/3-9-600x107.png 600w\" sizes=\"auto, (max-width: 706px) 100vw, 706px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">4\u3001BGP Route Reflector\uff1a\u53ef\u51cf\u5c11BGP Client\u5bfc\u81f4\u7684\u89c4\u6a21\u9650\u5236\u95ee\u9898<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">5\u3001calico-kube-controllers\uff1a\u7528\u4e8e\u7ba1\u7406Kubernetes\u96c6\u7fa4\u4e2d\u7684\u7f51\u7edc\u7b56\u7565(Network Policy)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Calico\u901a\u8baf\u534f\u8bae\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>IPIP\u534f\u8bae\uff1a\u901a\u8fc7IPIP\u96a7\u9053\u4f5c\u4e3a\u901a\u4fe1\u57fa\u7840\uff0c\u6bcf\u4e2a\u8282\u70b9\u4e0a\u521b\u5efatunl0\u4f5c\u4e3a\u96a7\u9053\u51fa\u5165\u53e3\u5c01\u88c5\u62a5\u6587<\/li>\n\n\n\n<li>BGP\u534f\u8bae\uff1a\u7eaf\u4e09\u5c42\u7684\u8def\u7531\u4ea4\u6362\uff0c\u76f4\u63a5\u4f7f\u7528\u7269\u7406\u673a\u4f5c\u4e3a\u865a\u62df\u8def\u7531\u5668\uff0c\u4e0d\u5728\u521b\u5efa\u989d\u5916\u7684tunnel<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">BGP\u534f\u8bae\u53c8\u5206\u4e3a\u4e24\u79cd\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>BGP Speaker \u5168\u4e92\u8054\u6a21\u5f0f(node-to-node mesh)\uff1a\u7f51\u7edc\u6210\u7f51\u72b6\uff0c\u4e24\u4e24\u4e92\u8054\uff0c\u9002\u5408\u5c0f\u89c4\u6a21\u96c6\u7fa4(\u4e0a\u8ff0\u5de5\u4f5c\u7ec4\u4ef6\u4e2d\u7684\u7b2c\u4e09\u4e2a)<\/li>\n\n\n\n<li>BGP Speaker \u8def\u7531\u53cd\u5c04\u6a21\u5f0f(Route Reflector)\uff1aBGP Speaker\u8fde\u63a5\u5230\u4e00\u4e2a\u6216\u591a\u4e2a\u4e2d\u5fc3BGP Speaker\uff0c\u7f51\u7edc\u6210\u661f\u72b6\u3002\u9002\u5408\u5927\u89c4\u6a21\u8282\u70b9\u96c6\u7fa4(\u4e0a\u8ff0\u5de5\u4f5c\u7ec4\u4ef6\u4e2d\u7684\u7b2c\u56db\u4e2a)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Calico\u7f51\u7edc\u9a8c\u8bc1\uff1a<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001IPIP\u5de5\u4f5c\u6a21\u5f0f\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1.1 \u9996\u5148\u5728\u4e0d\u540c\u8282\u70b9\u4e0a\u8fd0\u884c\u4e24\u4e2apod\uff0cdemo1\u548cdemo2\uff0c\u53ef\u4ee5\u770b\u5230podIP\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"708\" height=\"116\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/4-6.png\" alt=\"\" class=\"wp-image-8605\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/4-6.png 708w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/4-6-300x49.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/4-6-600x98.png 600w\" sizes=\"auto, (max-width: 708px) 100vw, 708px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bbf\u4e3b\u673a\u7684IP\u4fe1\u606f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"708\" height=\"142\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/5-7.png\" alt=\"\" class=\"wp-image-8607\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/5-7.png 708w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/5-7-300x60.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/5-7-600x120.png 600w\" sizes=\"auto, (max-width: 708px) 100vw, 708px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">1.2 \u8fdb\u5165demo1\u4e2d\uff0c\u53bbping\u4e00\u4e0bdemo2\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"706\" height=\"189\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/6-6.png\" alt=\"\" class=\"wp-image-8609\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/6-6.png 706w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/6-6-300x80.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/6-6-600x161.png 600w\" sizes=\"auto, (max-width: 706px) 100vw, 706px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u53d1\u73b0\uff0c\u662f\u53ef\u4ee5ping\u901a\u7684\uff0c\u90a3\u4e48\u4e3a\u4ec0\u4e48\u53ef\u4ee5ping\u901a\u5462\uff0c\u9996\u5148\u6211\u4eec\u67e5\u770b\u4e0bdemo1\u7684\u8def\u7531\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"707\" height=\"102\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/7-5.png\" alt=\"\" class=\"wp-image-8611\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/7-5.png 707w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/7-5-300x43.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/7-5-600x87.png 600w\" sizes=\"auto, (max-width: 707px) 100vw, 707px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6839\u636e\u8def\u7531\u770b\u51fa\uff0cping\u4e4b\u540e\u4f1a\u5339\u914d\u5230\u7b2c\u4e00\u6761\u8def\u7531\uff0c\u610f\u601d\u662f\u53bb\u5f80\u4efb\u4f55\u76ee\u6807\u7f51\u6bb5\u7684\u6570\u636e\u5305\u90fd\u5c06\u53d1\u5f80\u7f51\u5173169.254.1.1\uff0c\u5e76\u901a\u8fc7\u7f51\u5361eth0\u51fa\u53bb(\u6ce8\uff1aeth0\u4e3apod\u5185\u5bb9\u5668\u7684\u7f51\u5361\uff0c\u4e0d\u662f\u5bbf\u4e3b\u673a)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8def\u7531\u8868\u4e2dFlags\u6807\u5fd7\u7684\u542b\u4e49\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>U\uff1aup\u8868\u793a\u5f53\u524d\u7f51\u5361\u4e3a\u542f\u52a8\u72b6\u6001<\/li>\n\n\n\n<li>H \uff1ahost\u8868\u793a\u8be5\u8def\u7531\u4e3a\u4e00\u4e2a\u4e3b\u673a\uff0c\u591a\u4e3a\u8fbe\u5230\u6570\u636e\u5305\u7684\u8def\u7531<\/li>\n\n\n\n<li>G \uff1aGateway \u8868\u793a\u8be5\u8def\u7531\u662f\u4e00\u4e2a\u7f51\u5173\uff0c\u5982\u679c\u6ca1\u6709\u8bf4\u660e\u76ee\u7684\u5730\u662f\u76f4\u8fde\u7684<\/li>\n\n\n\n<li>D\uff1a Dynamicaly \u8868\u793a\u8be5\u8def\u7531\u662f\u91cd\u5b9a\u5411\u62a5\u6587\u4fee\u6539<\/li>\n\n\n\n<li>M \uff1a\u8868\u793a\u8be5\u8def\u7531\u5df2\u88ab\u91cd\u5b9a\u5411\u62a5\u6587\u4fee\u6539<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">1.3 \u67e5\u770bdemo1\u6240\u5728\u5bbf\u4e3b\u673a\u8282\u70b9\u4e0a\u7684\u8def\u7531\u4fe1\u606f\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"707\" height=\"225\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/8-4.png\" alt=\"\" class=\"wp-image-8615\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/8-4.png 707w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/8-4-300x95.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/8-4-600x191.png 600w\" sizes=\"auto, (max-width: 707px) 100vw, 707px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u4e0a\u56fe\u770b\u51fa\uff0c\u5f53ping 10.244.195.3\u65f6\uff0c\u4f1a\u901a\u8fc7\u8def\u7531tunl0\uff0c\u6b64\u8def\u7531\u610f\u601d\u4e3a\uff0c\u53bb\u5f8010.244.195.0\u7684\u6570\u636e\u5305\u901a\u8fc7\u8def\u7531tunl0\u53d1\u5f80\u7f51\u517310.9.2.251\uff0c\u6b64\u65f6demo2\u6240\u5728\u7684\u5bbf\u4e3b\u673a\u8282\u70b9IP\u5145\u5f53\u7f51\u5173\uff0c\u901a\u8fc7\u6b64\u8def\u7531\u53d1\u9001\u6570\u636e\u5305\u5230demo2\u6240\u5728\u8282\u70b9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1.4 \u67e5\u770bdemo2\u6240\u5728\u5bbf\u4e3b\u673a\u8282\u70b9\u4e0a\u7684\u8def\u7531\u4fe1\u606f\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"705\" height=\"213\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/9-3.png\" alt=\"\" class=\"wp-image-8618\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/9-3.png 705w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/9-3-300x91.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/9-3-600x181.png 600w\" sizes=\"auto, (max-width: 705px) 100vw, 705px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u8282\u70b9\u6536\u5230\u6570\u636e\u5305\u540e\uff0c\u53d1\u73b0\u76ee\u7684\u5730IP\u4e3a10.244.195.3\uff0c\u4e8e\u662f\u5339\u914d\u5230\u4e0a\u56fe\u4e2d\u9ec4\u7ebf\u7684\u8def\u7531\uff0c\u6b64\u8def\u7531\u610f\u601d\u4e3a\uff1a10.244.195.3\u4e3a\u672c\u673a\u76f4\u8fde\u8bbe\u5907\uff0c\u53bb\u5f80\u8be5\u8bbe\u5907\u7684\u6570\u636e\u5305\u5c06\u53d1\u5f80\u7f51\u5361cali8d9a2af576c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u521b\u5efapod\u7684\u65f6\u5019\uff0cCalico\u4f1a\u7ed9pod\u521b\u5efa\u4e00\u4e2aveth pair\u8bbe\u5907\u5bf9\uff0c\u4e00\u7aef\u4e3apod\u5185\u7684\u7f51\u5361\uff0c\u4e00\u7aef\u5c31\u662f\u5bbf\u4e3b\u673a\u770b\u5230\u7684\u8fd9\u4e2acali8d9a2af576c\u7f51\u5361\uff0c\u56e0\u6b64\u53d1\u9001\u5230cali8d9a2af576c\u7684\u6570\u636e\u5305\uff0c\u5176\u5b9e\u5c31\u662f\u53d1\u9001\u5230demo2\u7684\u7f51\u5361\u4e2d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1.5 \u6293\u5305\u67e5\u770bping\u7684\u8fc7\u7a0b\uff0c\u5728ping \u7684\u8fc7\u7a0b\u4e2d\u6267\u884c\u5982\u4e0b\u547d\u4ee4\u6293\u53d6demo1\u6240\u5728\u5bbf\u4e3b\u673a\u7f51\u5361\u7684\u6570\u636e\u5305\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># -i\uff1a \u6307\u5b9a\u5bbf\u4e3b\u673a\u7f51\u5361\u540d\u79f0\n# -vv: \u66f4\u8be6\u7ec6\u663e\u793a\u6267\u884c\u8fc7\u7a0b\n# -w : \u5c06\u6267\u884c\u7ed3\u679c\u8f93\u51fa\u5230\u6587\u4ef6ipip.pcap\u4e2d\uff0cpcap\u4e3a\u4e00\u79cd\u6587\u4ef6\u683c\u5f0f\ntcpdump -i ens33 -vv -w ipip.pcap<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6293\u5305\u540e\u901a\u8fc7\u5de5\u5177Wireshark\u8fdb\u884c\u5206\u6790(\u641c\u7d22ICMP)\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"707\" height=\"232\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/11-2.png\" alt=\"\" class=\"wp-image-8627\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/11-2.png 707w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/11-2-300x98.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/11-2-600x197.png 600w\" sizes=\"auto, (max-width: 707px) 100vw, 707px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u4e0a\u56fe\u53ef\u4ee5\u770b\u51fa\uff0cdemo1 ping demo2 \u7684\u6570\u636e\u5305\u4e00\u51715\u5c42\uff0c\u5176\u4e2dip\u67092\u5c42\uff0c\u5206\u522b\u662fpod\u4e4b\u95f4\u7684\u7f51\u7edc\u548c\u4e3b\u673a\u4e4b\u95f4\u7684\u7f51\u7edc\uff0c\u56e0\u6b64\u662f\u5728demo1 ping demo2\u7684ICMP\u5305\u5916\u9762\u591a\u5c01\u88c5\u4e86\u4e00\u5c42\u4e3b\u673a\u4e4b\u95f4\u7684\u6570\u636e\u5305<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u6b64\uff1aIPIP\u6a21\u5f0f\u5c31\u662f\u5c06IP\u5305\u5c01\u88c5\u5728IP\u5305\u91cc\uff0c\u6240\u6709pod\u7684\u6570\u636e\u5305\u901a\u8fc7\u96a7\u9053tunl0\u53d1\u9001<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"719\" height=\"323\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/12-1.png\" alt=\"\" class=\"wp-image-8632\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/12-1.png 719w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/12-1-300x135.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/12-1-600x270.png 600w\" sizes=\"auto, (max-width: 719px) 100vw, 719px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2\u3001BGP\u5de5\u4f5c\u6a21\u5f0f\uff1a<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u5b89\u88c5calico\u7684\u65f6\u5019\uff0c\u9ed8\u8ba4\u5b89\u88c5\u7684\u5c31\u662fIPIP\u5de5\u4f5c\u6a21\u5f0f\uff0c\u53ef\u901a\u8fc7\u5982\u4e0b\u65b9\u5f0f\u4fee\u6539\u4e3aBGP\u6a21\u5f0f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c\u4e00\u79cd\uff1a\u4fee\u6539\u4fee\u6539IPPool\u4e2d\u7684ipipMode\u4e3aNever\uff0c\u53ef\u4ee5\u7406\u89e3\u4e3a\u7981\u7528IPIP\u6a21\u5f0f\uff0c\u6267\u884c\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>kubectl edit ippool<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"709\" height=\"375\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/13.png\" alt=\"\" class=\"wp-image-8635\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/13.png 709w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/13-300x159.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/13-600x317.png 600w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c\u4e8c\u79cd\uff1a\u4fee\u6539calico.yaml\u6587\u4ef6\u7684CALICO_IPV4POOL_IPIP\u4e3aNever\uff0c\u4e0d\u8fc7\u6b64\u79cd\u65b9\u5f0f\u53ea\u9002\u7528\u4e8e\u7b2c\u4e00\u6b21\u90e8\u7f72\uff0c\u5982\u679c\u5df2\u7ecf\u90e8\u7f72\u4e86IPIP\u6a21\u5f0f\uff0c\u8fd9\u79cd\u65b9\u5f0f\u4e0d\u751f\u6548\uff0c\u9664\u975e\u5220\u9664calico\uff0c\u4fee\u6539\u540e\u91cd\u65b0\u90e8\u7f72<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"705\" height=\"88\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/14.png\" alt=\"\" class=\"wp-image-8638\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/14.png 705w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/14-300x37.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/14-600x75.png 600w\" sizes=\"auto, (max-width: 705px) 100vw, 705px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">2.1 \u7ee7\u7eed\u4ee5\u4e0a\u9762ping\u4e3a\u4f8b\u5b50\uff0c\u9996\u5148\u67e5\u770bdemo1\u7684\u8def\u7531\u4fe1\u606f\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"706\" height=\"146\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/15.png\" alt=\"\" class=\"wp-image-8642\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/15.png 706w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/15-300x62.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/15-600x124.png 600w\" sizes=\"auto, (max-width: 706px) 100vw, 706px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u4e0a\u56fe\u770b\u51fa\uff0c\u53d1\u5f80\u4efb\u4f55\u7f51\u6bb5\u7684\u6570\u636e\u5305\u90fd\u901a\u8fc7\u7f51\u5173169.254.1.1\u4ee5\u53ca\u7f51\u5361eth0\u51fa\u53bb<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u67e5\u770bdemo1\u6240\u5728\u7684\u5bbf\u4e3b\u673ak8s-master02\u7684\u8def\u7531\u4fe1\u606f\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"707\" height=\"229\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/16.png\" alt=\"\" class=\"wp-image-8643\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/16.png 707w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/16-300x97.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/16-600x194.png 600w\" sizes=\"auto, (max-width: 707px) 100vw, 707px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u8ff0\u8def\u7531\u610f\u601d\u662f\uff1a\u53bb\u5f80\u7f51\u6bb510.244.195.0\u7684\u6570\u636e\u5305\uff0c\u901a\u8fc7\u7f51\u517310.9.2.251(demo2\u6240\u5728\u7684\u5bbf\u4e3b\u673aIP)\u5230\u8fbe\uff0c\u5e76\u4e14\u4ece\u7f51\u5361ens33\u51fa\u53bb<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2.2 \u67e5\u770bdemo2\u6240\u5728\u8282\u70b9\u7684\u5bbf\u4e3b\u673a\u7684\u8def\u7531\u4fe1\u606f\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"708\" height=\"212\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/17.png\" alt=\"\" class=\"wp-image-8644\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/17.png 708w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/17-300x90.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/17-600x180.png 600w\" sizes=\"auto, (max-width: 708px) 100vw, 708px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u8ff0\u8def\u7531\u542b\u4e49\uff1a\u5f53\u8282\u70b9\u63a5\u6536\u5230\u6570\u636e\u540e\uff0c\u53d1\u73b0\u76ee\u7684IP\u5730\u5740\u4e3a10.244.195.3\uff0c\u5c31\u5339\u914d\u5230\u56fe\u4e2d\u9ec4\u8272\u7ebf\u4f4d\u7f6e\u7684\u8def\u7531\u4fe1\u606f\uff0c\u6570\u636e\u5305\u5c06\u53d1\u5f80\u7f51\u5361cali8d9a2af576c\uff0c\u6b64\u7f51\u5361\u4e3acalico\u521b\u5efapod\u7684\u65f6\u5019\u521b\u5efa\u7684veth pair \u8bbe\u5907\u5bf9\u7684\u4e00\u7aef\uff0c\u53e6\u4e00\u7aef\u5728demo2\u8fd9\u4e2apod\u91cc<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">demo2\u5bf9demo1\u7684ping\u505a\u51fa\u56de\u5e94\u4e5f\u662f\u4e00\u6837\u7684\u539f\u7406\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"706\" height=\"215\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/18.png\" alt=\"\" class=\"wp-image-8647\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/18.png 706w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/18-300x91.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/18-600x183.png 600w\" sizes=\"auto, (max-width: 706px) 100vw, 706px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u8ff0\u8def\u7531\u542b\u4e49\uff1a\u53bb\u5f8010.244.122.128\u7684\u8fd4\u56de\u6570\u636e\u5305\uff0c\u4ee510.9.2.250(demo1\u6240\u5728\u8282\u70b9\u7684\u5bbf\u4e3b\u673aIP)\u4e3a\u7f51\u5173\uff0c\u901a\u8fc7\u7f51\u5361ens33\uff0c\u53d1\u5f80demo1\u6240\u5728\u7684\u8282\u70b9\u4e0a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2.3 \u5728ping\u7684\u8fc7\u7a0b\u4e2d\uff0c\u5728demo1\u6240\u5728\u8282\u70b9\u4e0a\u6267\u884c\u6293\u5305\u547d\u4ee4\uff0c\u6267\u884c\u5982\u4e0b\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>tcpdump -i ens33 -vv -w ipip.pcap<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6293\u5305\u540e\u901a\u8fc7\u5de5\u5177Wireshark\u8fdb\u884c\u5206\u6790(\u641c\u7d22ICMP)\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"706\" height=\"251\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/19.png\" alt=\"\" class=\"wp-image-8649\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/19.png 706w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/19-300x107.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/19-600x213.png 600w\" sizes=\"auto, (max-width: 706px) 100vw, 706px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u4e0a\u56fe\u770b\u51fa\uff0cBGP\u6a21\u5f0f\u4e0b\uff0c\u6ca1\u6709\u5bbf\u4e3b\u673aIP\u7684\u5c01\u88c5\uff0c\u4f46\u662f\u6709mac\u5730\u5740\u7684\u5c01\u88c5\uff0c\u6e90mac\u5730\u5740\u4e3ademo1\u6240\u5728\u5bbf\u4e3b\u673a\u7684\u7f51\u5361mac\u5730\u5740\uff0c\u76ee\u6807mac\u662fdemo2\u6240\u5728\u5bbf\u4e3b\u673a\u7684\u7f51\u5361mac\uff0c\u56e0\u4e3a\u5f53\u4e00\u4e2a\u6570\u636e\u5305\u7684\u76ee\u7684\u5730\u5740\u4e0d\u662f\u672c\u673a\u65f6\uff0c\u5c31\u4f1a\u67e5\u8be2\u8def\u7531\u8868\uff0c\u4ece\u8def\u7531\u8868\u4e2d\u67e5\u8be2\u5230\u7f51\u5173\u540e\uff0c\u901a\u8fc7ARP\u83b7\u5f97\u7f51\u5173\u7684MAC\u5730\u5740\uff0c\u7f51\u5173\u7684IP\u4e0d\u4f1a\u51fa\u73b0\u5728\u7f51\u7edc\u5305\u4e2d\uff0c\u5b9e\u9645\u4e0aCalico\u5229\u7528\u4e86\u7f51\u5361\u7684\u4ee3\u7406ARP\u529f\u80fd\uff0c\u5f53ARP\u8bf7\u6c42\u76ee\u6807\u8de8\u7f51\u6bb5\u65f6\uff0c\u7f51\u5173\u8bbe\u5907\u6536\u5230\u6b64ARP\u8bf7\u6c42\uff0c\u4f1a\u5c06\u81ea\u5df1\u7684MAC\u5730\u5740\u8fd4\u56de\u7ed9\u8bf7\u6c42\u8005\uff0c\u4e0a\u56fe\u4e2d\u7684\u76ee\u6807mac\u5730\u5740\u5373\u4e3a\u4ee3\u7406mac\u5730\u5740\uff0c\u56e0\u6b64\u8bf7\u6c42\u6570\u636e\u5305\u5c01\u88c5\u7684\u5c31\u662f\u6b64mac\u5730\u5740\uff0c\u8fd4\u56de\u6570\u636e\u5305\u539f\u7406\u4e00\u6837<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"708\" height=\"320\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/20.png\" alt=\"\" class=\"wp-image-8652\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/20.png 708w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/20-300x136.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2022\/05\/20-600x271.png 600w\" sizes=\"auto, (max-width: 708px) 100vw, 708px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">3\u3001\u4e24\u79cd\u7f51\u7edc\u6a21\u5f0f\u5bf9\u6bd4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001IPIP\u6a21\u5f0f\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6d41\u91cf\uff1atunlo\u8bbe\u5907\u5c01\u88c5\u6570\u636e\uff0c\u5f62\u6210\u96a7\u9053\uff0c\u627f\u8f7d\u8fdb\u51fa\u6d41\u91cf<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9002\u7528\u7c7b\u578b\uff1a\u9002\u7528\u4e8epod\u4e4b\u95f4\u4e0d\u5728\u540c\u4e00\u4e2a\u7f51\u6bb5\u4e2d\uff0c\u8de8\u7f51\u6bb5\u8bbf\u95ee\u573a\u666f\u3002\u5916\u5c42\u5c01\u88c5\u7684\u5bbf\u4e3bip\u80fd\u591f\u89e3\u51b3\u8de8\u7f51\u6bb5\u7684\u8def\u7531\u95ee\u9898<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6548\u7387\uff1a\u6d41\u91cf\u901a\u8fc7tunl0\u8bbe\u5907\u5c01\u88c5\uff0c\u6548\u7387\u7565\u4f4e<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001BGP\u6a21\u5f0f\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6d41\u91cf\uff1a\u901a\u8fc7\u8def\u7531\u8868\u5b9e\u73b0\u6d41\u91cf\u5bfc\u5411<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9002\u7528\u7c7b\u578b\uff1a\u9002\u7528\u4e8epod\u4e4b\u95f4\u5728\u540c\u4e00\u4e2a\u7f51\u6bb5\uff0c\u9002\u7528\u5927\u578b\u7f51\u7edc<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6548\u7387\uff1a\u539f\u751f\u7684hostGW\uff0c\u6548\u7387\u9ad8<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\uff1a\u5207\u6362\u4e3aBGP\u6a21\u5f0f\u540e\uff0c\u539f\u6765\u7684IPIP\u96a7\u9053\u8bbe\u5907tunl0\u4e0d\u4f1a\u81ea\u52a8\u5220\u9664\uff0c\u9700\u8981\u6267\u884c\u5982\u4e0b\u547d\u4ee4\u624b\u52a8\u5220\u9664\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>modprobe -r ipip<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">BGP\u4ec5\u9002\u7528\u4e8e\u89c4\u6a21\u8f83\u5c0f\u7684\u96c6\u7fa4\u73af\u5883\uff0c\u5927\u89c4\u6a21\u96c6\u7fa4\u73af\u5883\u4f7f\u7528bgp route reflector<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Calico\u662f\u4e00\u79cd\u5bb9\u5668\u95f4\u7684\u7f51\u7edc\u901a\u4fe1\u65b9\u6848\uff0c\u540c\u65f6\u63d0\u4f9b\u9694\u79bb\u4e0e\u7ba1\u63a7\u673a\u5236 Calico\u8bbe\u8ba1\u4f18\u52bf\uff1a Calico\u4e3b\u8981\u5de5\u4f5c\u7ec4 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":8623,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[93,23],"tags":[],"class_list":["post-8593","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kubernetes","category-rong"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":8}},"_links":{"self":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts\/8593","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/comments?post=8593"}],"version-history":[{"count":49,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts\/8593\/revisions"}],"predecessor-version":[{"id":12893,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts\/8593\/revisions\/12893"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/media\/8623"}],"wp:attachment":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/media?parent=8593"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/categories?post=8593"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/tags?post=8593"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}