{"id":99,"date":"2026-06-02T07:48:23","date_gmt":"2026-06-02T07:48:23","guid":{"rendered":"https:\/\/blog.joezhou.top\/docker-bridge-overlay\/"},"modified":"2026-06-22T23:40:27","modified_gmt":"2026-06-22T15:40:27","slug":"docker-bridge-overlay","status":"publish","type":"post","link":"https:\/\/www.joezhou.top\/?p=99","title":{"rendered":"Docker \u7f51\u7edc\u8be6\u89e3\uff1a\u4ece bridge \u5230 overlay \u7684\u5b9e\u6218\u6307\u5357"},"content":{"rendered":"<h2 id=\"docker\">\u4e3a\u4ec0\u4e48\u9700\u8981\u4e86\u89e3 Docker \u7f51\u7edc\uff1f<\/h2>\n<p>\u5bb9\u5668\u5316\u90e8\u7f72\u5df2\u7ecf\u6210\u4e3a\u4f01\u4e1a\u6807\u914d\uff0c\u4f46\u5f88\u591a\u4eba\u5bf9 Docker \u7f51\u7edc\u7684\u7406\u89e3\u8fd8\u505c\u7559\u5728\u300c\u80fd\u7528\u300d\u5c42\u9762\u3002\u5f53\u9047\u5230\u8de8\u4e3b\u673a\u901a\u4fe1\u3001\u670d\u52a1\u53d1\u73b0\u3001\u7f51\u7edc\u9694\u79bb\u7b49\u5b9e\u9645\u95ee\u9898\u65f6\uff0c\u624d\u53d1\u73b0\u7f51\u7edc\u914d\u7f6e\u624d\u662f\u5bb9\u5668\u7f16\u6392\u7684\u6838\u5fc3\u6280\u80fd\u4e4b\u4e00\u3002<\/p>\n<p>\u672c\u6587\u68b3\u7406 Docker \u7f51\u7edc\u7684\u56db\u79cd\u4e3b\u6d41\u6a21\u5f0f\uff0c\u4ee5\u53ca\u751f\u4ea7\u73af\u5883\u4e2d\u7684\u6700\u4f73\u5b9e\u8df5\u3002<\/p>\n<h2 id=\"docker_1\">Docker \u7f51\u7edc\u56db\u79cd\u6a21\u5f0f<\/h2>\n<h3 id=\"1-bridge\">1. Bridge \u6a21\u5f0f\uff08\u9ed8\u8ba4\uff09<\/h3>\n<p>\u6bcf\u4e2a\u5bb9\u5668\u5206\u914d\u72ec\u7acb\u7f51\u7edc\u547d\u540d\u7a7a\u95f4\uff0c\u901a\u8fc7\u865a\u62df\u7f51\u6865 <code>docker0<\/code> \u4e92\u8054\u3002<\/p>\n<pre class=\"codehilite\"><code>\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510     \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n\u2502 Container \u2502    \u2502 Container \u2502\n\u2502 172.17.0.2\u2502    \u2502 172.17.0.3\u2502\n\u2514\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2518    \u2514\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2518\n     \u2502               \u2502\n     \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n             \u25bc\n       docker0 (bridge)\n             \u2502\n        \u5bbf\u4e3b\u673a eth0\n<\/code><\/pre>\n<ul>\n<li><strong>\u9002\u7528<\/strong>\uff1a\u5355\u673a\u591a\u5bb9\u5668\uff0c\u5f00\u53d1\u6d4b\u8bd5\u73af\u5883<\/li>\n<li><strong>\u7279\u70b9<\/strong>\uff1a\u5f00\u7bb1\u5373\u7528\uff0c\u5bb9\u5668\u95f4\u901a\u8fc7 IP \u901a\u4fe1\uff1b\u7aef\u53e3\u9700 <code>-p<\/code> \u6620\u5c04\u5230\u5bbf\u4e3b\u673a<\/li>\n<\/ul>\n<h3 id=\"2-host\">2. Host \u6a21\u5f0f<\/h3>\n<p>\u5bb9\u5668\u76f4\u63a5\u4f7f\u7528\u5bbf\u4e3b\u673a\u7684\u7f51\u7edc\u6808\uff0c\u4e0d\u521b\u5efa\u72ec\u7acb\u7684\u7f51\u7edc\u547d\u540d\u7a7a\u95f4\u3002<\/p>\n<ul>\n<li><strong>\u9002\u7528<\/strong>\uff1a\u5bf9\u7f51\u7edc\u6027\u80fd\u8981\u6c42\u9ad8\u7684\u573a\u666f\uff08\u5982\u9ad8\u541e\u5410\u91cf\u7684\u7f51\u7edc\u5e94\u7528\uff09<\/li>\n<li><strong>\u6ce8\u610f<\/strong>\uff1a\u7aef\u53e3\u4e0d\u80fd\u91cd\u590d\u5360\u7528\uff0c\u5b89\u5168\u6027\u964d\u4f4e<\/li>\n<\/ul>\n<h3 id=\"3-none\">3. None \u6a21\u5f0f<\/h3>\n<p>\u5bb9\u5668\u53ea\u6709 loopback \u63a5\u53e3\uff0c\u6ca1\u6709\u5916\u90e8\u7f51\u7edc\u3002\u9002\u5408\u5b8c\u5168\u81ea\u5b9a\u4e49\u7f51\u7edc\u7684\u573a\u666f\u3002<\/p>\n<h3 id=\"4-overlay\">4. Overlay \u6a21\u5f0f\uff08\u8de8\u4e3b\u673a\uff09<\/h3>\n<p>\u57fa\u4e8e VXLAN \u5c01\u88c5\uff0c\u5b9e\u73b0\u8de8\u7269\u7406\u4e3b\u673a\u7684\u5bb9\u5668\u4e92\u901a\u2014\u2014Docker Swarm \/ Kubernetes \u7684\u57fa\u7840\u3002<\/p>\n<pre class=\"codehilite\"><code> Host A (192.168.1.10)          Host B (192.168.1.20)\n \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510           \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n \u2502 Container Web   \u2502           \u2502 Container DB     \u2502\n \u2502 10.0.0.2        \u2502\u2500\u2500VXLAN\u2500\u2500\u25b6\u2502 10.0.0.3         \u2502\n \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518           \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n          \u2502                             \u2502\n      overlay network            overlay network\n          \u2502                             \u2502\n     eth0 (VXLAN)                eth0 (VXLAN)\n          \u2502                             \u2502\n          \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u7269\u7406\u4ea4\u6362\u673a \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n<\/code><\/pre>\n<h2 id=\"_1\">\u5e38\u7528\u64cd\u4f5c\u901f\u67e5<\/h2>\n<pre class=\"codehilite\"><code class=\"language-bash\"># \u521b\u5efa\u81ea\u5b9a\u4e49 bridge \u7f51\u7edc\uff08\u63a8\u8350\u66ff\u4ee3\u9ed8\u8ba4 bridge\uff09\ndocker network create my-app-net\n\n# \u8fd0\u884c\u5bb9\u5668\u6307\u5b9a\u7f51\u7edc\ndocker run -d --network my-app-net --name web nginx:alpine\n\n# \u540c\u4e00\u7f51\u7edc\u5185\u7684\u5bb9\u5668\u901a\u8fc7\u5bb9\u5668\u540d\u4e92\u76f8\u8bbf\u95ee\uff08\u5185\u7f6e DNS\uff09\n# \u4f8b\u5982 web \u5bb9\u5668\u53ef\u4ee5\u901a\u8fc7 http:\/\/db:3306 \u8bbf\u95ee db \u5bb9\u5668\n\n# \u67e5\u770b\u7f51\u7edc\u5217\u8868\ndocker network ls\n\n# \u68c0\u67e5\u67d0\u7f51\u7edc\u7684\u8be6\u7ec6\u4fe1\u606f\ndocker network inspect my-app-net\n\n# \u65ad\u5f00\/\u8fde\u63a5\u5bb9\u5668\u7684\u7f51\u7edc\ndocker network disconnect my-app-net web\ndocker network connect my-app-net web\n<\/code><\/pre>\n<h2 id=\"_2\">\u751f\u4ea7\u73af\u5883\u5efa\u8bae<\/h2>\n<p><strong>1. \u522b\u7528\u9ed8\u8ba4 bridge<\/strong><br \/>\n\u9ed8\u8ba4 bridge \u4e0d\u652f\u6301 DNS \u89e3\u6790\uff0c\u53ea\u80fd\u7528 IP \u901a\u4fe1\u3002\u59cb\u7ec8\u521b\u5efa\u81ea\u5b9a\u4e49 bridge \u7f51\u7edc\u3002<\/p>\n<p><strong>2. \u7528 compose \u7edf\u4e00\u7ba1\u7406\u7f51\u7edc<\/strong><\/p>\n<pre class=\"codehilite\"><code class=\"language-yaml\">version: '3.8'\nservices:\n  web:\n    image: nginx:alpine\n    networks:\n      - frontend\n      # \u53ef\u540c\u65f6\u63a5\u5165\u591a\u4e2a\u7f51\u7edc\n  db:\n    image: mysql:8.0\n    networks:\n      - backend\n\nnetworks:\n  frontend:\n  backend:\n<\/code><\/pre>\n<p><strong>3. \u8de8\u4e3b\u673a\u7528 overlay + Swarm\/K8s<\/strong><br \/>\n\u624b\u52a8\u914d\u7f6e VXLAN \u592a\u590d\u6742\uff0c\u4e0a\u89c4\u6a21\u540e\u76f4\u63a5\u8d70\u5bb9\u5668\u7f16\u6392\u5e73\u53f0\u3002<\/p>\n<p><strong>4. \u6ce8\u610f\u5b89\u5168\u7ec4 \/ \u9632\u706b\u5899<\/strong><br \/>\n\u5bb9\u5668\u95f4\u7684\u901a\u4fe1\u5728\u5bbf\u4e3b\u673a\u5185\u90e8\u5b8c\u6210\uff0c\u4f46\u5bbf\u4e3b\u673a\u4e4b\u95f4\u7684 VXLAN \u6d41\u91cf\u9700\u8981\u9632\u706b\u5899\u653e\u884c UDP 4789 \u7aef\u53e3\u3002<\/p>\n<h2 id=\"_3\">\u5c0f\u7ed3<\/h2>\n<p>Docker \u7f51\u7edc\u7684\u672c\u8d28\u662f Linux \u7f51\u7edc\u547d\u540d\u7a7a\u95f4 + veth pair + bridge\/overlay \u7684\u7ec4\u5408\u3002\u7406\u89e3\u4e86\u8fd9\u51e0\u5c42\u62bd\u8c61\uff0c\u6392\u67e5\u5bb9\u5668\u7f51\u7edc\u95ee\u9898\u5c31\u4e0d\u518d\u9ed1\u76d2\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e3a\u4ec0\u4e48\u9700\u8981\u4e86\u89e3 Docker \u7f51\u7edc\uff1f \u5bb9\u5668\u5316\u90e8\u7f72\u5df2\u7ecf\u6210\u4e3a\u4f01\u4e1a\u6807\u914d\uff0c\u4f46\u5f88\u591a\u4eba\u5bf9 Docker \u7f51\u7edc\u7684\u7406\u89e3\u8fd8\u505c\u7559\u5728 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[34,35,36,33,37,32],"class_list":["post-99","post","type-post","status-publish","format-standard","hentry","category-iso","tag-34","tag-35","tag-36","tag-33","tag-37","tag-32"],"_links":{"self":[{"href":"https:\/\/www.joezhou.top\/index.php?rest_route=\/wp\/v2\/posts\/99","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.joezhou.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.joezhou.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.joezhou.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.joezhou.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=99"}],"version-history":[{"count":1,"href":"https:\/\/www.joezhou.top\/index.php?rest_route=\/wp\/v2\/posts\/99\/revisions"}],"predecessor-version":[{"id":257,"href":"https:\/\/www.joezhou.top\/index.php?rest_route=\/wp\/v2\/posts\/99\/revisions\/257"}],"wp:attachment":[{"href":"https:\/\/www.joezhou.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=99"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.joezhou.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=99"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.joezhou.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=99"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}