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<!doctype html>
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<html lang="en" class="no-js">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width,initial-scale=1">
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<meta http-equiv="x-ua-compatible" content="ie=edge">
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<link rel="canonical" href="https://kubernetes.github.io/ingress-nginx/enhancements/20190815-zone-aware-routing/">
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<meta name="lang:clipboard.copy" content="Copy to clipboard">
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<meta name="lang:clipboard.copied" content="Copied to clipboard">
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<meta name="lang:search.language" content="en">
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<meta name="lang:search.pipeline.stopwords" content="True">
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<meta name="lang:search.pipeline.trimmer" content="True">
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<meta name="lang:search.result.none" content="No matching documents">
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<meta name="lang:search.result.one" content="1 matching document">
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<meta name="lang:search.result.other" content="# matching documents">
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<meta name="lang:search.tokenizer" content="[\s\-]+">
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<link rel="shortcut icon" href="../../assets/images/favicon.png">
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<meta name="generator" content="mkdocs-1.0.4, mkdocs-material-4.6.3">
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<meta name="generator" content="mkdocs-1.1, mkdocs-material-5.1.0">
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@ -42,9 +21,9 @@
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<link rel="stylesheet" href="../../assets/stylesheets/application.adb8469c.css">
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<link rel="stylesheet" href="../../assets/stylesheets/main.89dc9fe3.min.css">
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<link rel="stylesheet" href="../../assets/stylesheets/palette.ecd4686e.min.css">
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@ -53,16 +32,13 @@
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<script src="../../assets/javascripts/modernizr.86422ebf.js"></script>
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<link href="https://fonts.gstatic.com" rel="preconnect" crossorigin>
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<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,400i,700%7CRoboto+Mono&display=fallback">
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<style>body,input{font-family:"Roboto","Helvetica Neue",Helvetica,Arial,sans-serif}code,kbd,pre{font-family:"Roboto Mono","Courier New",Courier,monospace}</style>
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<style>body,input{font-family:"Roboto",-apple-system,BlinkMacSystemFont,Helvetica,Arial,sans-serif}code,kbd,pre{font-family:"Roboto Mono",SFMono-Regular,Consolas,Menlo,monospace}</style>
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<link rel="stylesheet" href="../../assets/fonts/material-icons.css">
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<link rel="stylesheet" href="../../extra.css">
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@ -70,99 +46,80 @@
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<script>
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window.ga = window.ga || function() {
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(ga.q = ga.q || []).push(arguments)
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}
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ga.l = +new Date
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/* Setup integration and send page view */
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ga("create", "UA-118407822-1", "kubernetes.github.io")
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ga("set", "anonymizeIp", true)
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ga("send", "pageview")
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/* Register handler to log search on blur */
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var path = document.location.pathname;
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ga("send", "pageview", path + "?q=" + this.value)
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<link rel="preconnect dns-prefetch" href="https://www.google-analytics.com">
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<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
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<script async src="https://www.google-analytics.com/analytics.js"></script>
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</head>
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<body dir="ltr" data-md-color-primary="teal" data-md-color-accent="green">
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<svg class="md-svg">
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<defs>
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<svg xmlns="http://www.w3.org/2000/svg" width="416" height="448" viewBox="0 0 416 448" id="__github"><path fill="currentColor" d="M160 304q0 10-3.125 20.5t-10.75 19T128 352t-18.125-8.5-10.75-19T96 304t3.125-20.5 10.75-19T128 256t18.125 8.5 10.75 19T160 304zm160 0q0 10-3.125 20.5t-10.75 19T288 352t-18.125-8.5-10.75-19T256 304t3.125-20.5 10.75-19T288 256t18.125 8.5 10.75 19T320 304zm40 0q0-30-17.25-51T296 232q-10.25 0-48.75 5.25Q229.5 240 208 240t-39.25-2.75Q130.75 232 120 232q-29.5 0-46.75 21T56 304q0 22 8 38.375t20.25 25.75 30.5 15 35 7.375 37.25 1.75h42q20.5 0 37.25-1.75t35-7.375 30.5-15 20.25-25.75T360 304zm56-44q0 51.75-15.25 82.75-9.5 19.25-26.375 33.25t-35.25 21.5-42.5 11.875-42.875 5.5T212 416q-19.5 0-35.5-.75t-36.875-3.125-38.125-7.5-34.25-12.875T37 371.5t-21.5-28.75Q0 312 0 260q0-59.25 34-99-6.75-20.5-6.75-42.5 0-29 12.75-54.5 27 0 47.5 9.875t47.25 30.875Q171.5 96 212 96q37 0 70 8 26.25-20.5 46.75-30.25T376 64q12.75 25.5 12.75 54.5 0 21.75-6.75 42 34 40 34 99.5z"/></svg>
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<input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
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<input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
|
||||
<label class="md-overlay" data-md-component="overlay" for="__drawer"></label>
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<a href="#availability-zone-aware-routing" tabindex="0" class="md-skip">
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Skip to content
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</a>
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<label class="md-overlay" for="__drawer"></label>
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<div data-md-component="skip">
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<a href="#availability-zone-aware-routing" class="md-skip">
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Skip to content
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</a>
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|
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</div>
|
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<div data-md-component="announce">
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|
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</div>
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||||
<header class="md-header" data-md-component="header">
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<nav class="md-header-nav md-grid">
|
||||
<div class="md-flex">
|
||||
<div class="md-flex__cell md-flex__cell--shrink">
|
||||
<a href="https://kubernetes.github.io/ingress-nginx" title="NGINX Ingress Controller" aria-label="NGINX Ingress Controller" class="md-header-nav__button md-logo">
|
||||
|
||||
<i class="md-icon">public</i>
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||||
|
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</a>
|
||||
</div>
|
||||
<div class="md-flex__cell md-flex__cell--shrink">
|
||||
<label class="md-icon md-icon--menu md-header-nav__button" for="__drawer"></label>
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</div>
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||||
<div class="md-flex__cell md-flex__cell--stretch">
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||||
<div class="md-flex__ellipsis md-header-nav__title" data-md-component="title">
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||||
|
||||
<span class="md-header-nav__topic">
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NGINX Ingress Controller
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</span>
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<span class="md-header-nav__topic">
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|
||||
Availability zone aware routing
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||||
|
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</span>
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||||
|
||||
<nav class="md-header-nav md-grid" aria-label="Header">
|
||||
<a href="https://kubernetes.github.io/ingress-nginx" title="NGINX Ingress Controller" class="md-header-nav__button md-logo" aria-label="NGINX Ingress Controller">
|
||||
|
||||
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12,8A3,3 0 0,0 15,5A3,3 0 0,0 12,2A3,3 0 0,0 9,5A3,3 0 0,0 12,8M12,11.54C9.64,9.35 6.5,8 3,8V19C6.5,19 9.64,20.35 12,22.54C14.36,20.35 17.5,19 21,19V8C17.5,8 14.36,9.35 12,11.54Z" /></svg>
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</a>
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<label class="md-header-nav__button md-icon" for="__drawer">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3,6H21V8H3V6M3,11H21V13H3V11M3,16H21V18H3V16Z" /></svg>
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</label>
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<div class="md-header-nav__title" data-md-component="header-title">
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||||
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||||
<div class="md-header-nav__ellipsis">
|
||||
<span class="md-header-nav__topic md-ellipsis">
|
||||
NGINX Ingress Controller
|
||||
</span>
|
||||
<span class="md-header-nav__topic md-ellipsis">
|
||||
|
||||
Availability zone aware routing
|
||||
|
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</span>
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</div>
|
||||
</div>
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||||
<div class="md-flex__cell md-flex__cell--shrink">
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||||
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<label class="md-icon md-icon--search md-header-nav__button" for="__search"></label>
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</div>
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<label class="md-header-nav__button md-icon" for="__search">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5,3A6.5,6.5 0 0,1 16,9.5C16,11.11 15.41,12.59 14.44,13.73L14.71,14H15.5L20.5,19L19,20.5L14,15.5V14.71L13.73,14.44C12.59,15.41 11.11,16 9.5,16A6.5,6.5 0 0,1 3,9.5A6.5,6.5 0 0,1 9.5,3M9.5,5C7,5 5,7 5,9.5C5,12 7,14 9.5,14C12,14 14,12 14,9.5C14,7 12,5 9.5,5Z" /></svg>
|
||||
</label>
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||||
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||||
<div class="md-search" data-md-component="search" role="dialog">
|
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<label class="md-search__overlay" for="__search"></label>
|
||||
<div class="md-search__inner" role="search">
|
||||
<form class="md-search__form" name="search">
|
||||
<input type="text" class="md-search__input" aria-label="search" name="query" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="query" data-md-state="active">
|
||||
<label class="md-icon md-search__icon" for="__search"></label>
|
||||
<button type="reset" class="md-icon md-search__icon" data-md-component="reset" tabindex="-1">
|
||||

|
||||
<input type="text" class="md-search__input" name="query" aria-label="Search" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="search-query" data-md-state="active">
|
||||
<label class="md-search__icon md-icon" for="__search">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5,3A6.5,6.5 0 0,1 16,9.5C16,11.11 15.41,12.59 14.44,13.73L14.71,14H15.5L20.5,19L19,20.5L14,15.5V14.71L13.73,14.44C12.59,15.41 11.11,16 9.5,16A6.5,6.5 0 0,1 3,9.5A6.5,6.5 0 0,1 9.5,3M9.5,5C7,5 5,7 5,9.5C5,12 7,14 9.5,14C12,14 14,12 14,9.5C14,7 12,5 9.5,5Z" /></svg>
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||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20,11V13H8L13.5,18.5L12.08,19.92L4.16,12L12.08,4.08L13.5,5.5L8,11H20Z" /></svg>
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</label>
|
||||
<button type="reset" class="md-search__icon md-icon" aria-label="Clear" data-md-component="search-reset" tabindex="-1">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19,6.41L17.59,5L12,10.59L6.41,5L5,6.41L10.59,12L5,17.59L6.41,19L12,13.41L17.59,19L19,17.59L13.41,12L19,6.41Z" /></svg>
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</button>
|
||||
</form>
|
||||
<div class="md-search__output">
|
||||
<div class="md-search__scrollwrap" data-md-scrollfix>
|
||||
<div class="md-search-result" data-md-component="result">
|
||||
<div class="md-search-result" data-md-component="search-result">
|
||||
<div class="md-search-result__meta">
|
||||
Type to start searching
|
||||
</div>
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||||
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@ -172,43 +129,33 @@
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|||
</div>
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||||
</div>
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</div>
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<div class="md-header-nav__source">
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||||
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||||
</div>
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||||
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||||
<div class="md-flex__cell md-flex__cell--shrink">
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||||
<div class="md-header-nav__source">
|
||||
|
||||
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||||
|
||||
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||||
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||||
<a href="https://github.com/kubernetes/ingress-nginx/" title="Go to repository" class="md-source" data-md-source="github">
|
||||
|
||||
<div class="md-source__icon">
|
||||
<svg viewBox="0 0 24 24" width="24" height="24">
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||||
<use xlink:href="#__github" width="24" height="24"></use>
|
||||
</svg>
|
||||
</div>
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||||
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||||
<a href="https://github.com/kubernetes/ingress-nginx/" title="Go to repository" class="md-source">
|
||||
<div class="md-source__icon md-icon">
|
||||
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><path d="M439.55 236.05L244 40.45a28.87 28.87 0 0 0-40.81 0l-40.66 40.63 51.52 51.52c27.06-9.14 52.68 16.77 43.39 43.68l49.66 49.66c34.23-11.8 61.18 31 35.47 56.69-26.49 26.49-70.21-2.87-56-37.34L240.22 199v121.85c25.3 12.54 22.26 41.85 9.08 55a34.34 34.34 0 0 1-48.55 0c-17.57-17.6-11.07-46.91 11.25-56v-123c-20.8-8.51-24.6-30.74-18.64-45L142.57 101 8.45 235.14a28.86 28.86 0 0 0 0 40.81l195.61 195.6a28.86 28.86 0 0 0 40.8 0l194.69-194.69a28.86 28.86 0 0 0 0-40.81z"/></svg>
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</div>
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<div class="md-source__repository">
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kubernetes/ingress-nginx
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</div>
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</a>
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</div>
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</div>
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</div>
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</div>
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</nav>
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</header>
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<div class="md-container">
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<div class="md-container" data-md-component="container">
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||||
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<nav class="md-tabs" data-md-component="tabs">
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<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
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<div class="md-tabs__inner md-grid">
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<ul class="md-tabs__list">
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@ -273,38 +220,33 @@
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</ul>
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</div>
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</nav>
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<main class="md-main" role="main">
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<div class="md-main__inner md-grid" data-md-component="container">
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||||
<main class="md-main" data-md-component="main">
|
||||
<div class="md-main__inner md-grid">
|
||||
|
||||
|
||||
<div class="md-sidebar md-sidebar--primary" data-md-component="navigation">
|
||||
<div class="md-sidebar__scrollwrap">
|
||||
<div class="md-sidebar__inner">
|
||||
<nav class="md-nav md-nav--primary" data-md-level="0">
|
||||
<label class="md-nav__title md-nav__title--site" for="__drawer">
|
||||
<a href="https://kubernetes.github.io/ingress-nginx" title="NGINX Ingress Controller" class="md-nav__button md-logo">
|
||||
|
||||
<i class="md-icon">public</i>
|
||||
<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
|
||||
<label class="md-nav__title" for="__drawer">
|
||||
<a href="https://kubernetes.github.io/ingress-nginx" title="NGINX Ingress Controller" class="md-nav__button md-logo" aria-label="NGINX Ingress Controller">
|
||||
|
||||
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12,8A3,3 0 0,0 15,5A3,3 0 0,0 12,2A3,3 0 0,0 9,5A3,3 0 0,0 12,8M12,11.54C9.64,9.35 6.5,8 3,8V19C6.5,19 9.64,20.35 12,22.54C14.36,20.35 17.5,19 21,19V8C17.5,8 14.36,9.35 12,11.54Z" /></svg>
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||||
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||||
</a>
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||||
NGINX Ingress Controller
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||||
</label>
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||||
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||||
<div class="md-nav__source">
|
||||
|
||||
|
||||
|
||||
|
||||
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||||
<a href="https://github.com/kubernetes/ingress-nginx/" title="Go to repository" class="md-source" data-md-source="github">
|
||||
|
||||
<div class="md-source__icon">
|
||||
<svg viewBox="0 0 24 24" width="24" height="24">
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<use xlink:href="#__github" width="24" height="24"></use>
|
||||
</svg>
|
||||
</div>
|
||||
|
||||
<a href="https://github.com/kubernetes/ingress-nginx/" title="Go to repository" class="md-source">
|
||||
<div class="md-source__icon md-icon">
|
||||
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><path d="M439.55 236.05L244 40.45a28.87 28.87 0 0 0-40.81 0l-40.66 40.63 51.52 51.52c27.06-9.14 52.68 16.77 43.39 43.68l49.66 49.66c34.23-11.8 61.18 31 35.47 56.69-26.49 26.49-70.21-2.87-56-37.34L240.22 199v121.85c25.3 12.54 22.26 41.85 9.08 55a34.34 34.34 0 0 1-48.55 0c-17.57-17.6-11.07-46.91 11.25-56v-123c-20.8-8.51-24.6-30.74-18.64-45L142.57 101 8.45 235.14a28.86 28.86 0 0 0 0 40.81l195.61 195.6a28.86 28.86 0 0 0 40.8 0l194.69-194.69a28.86 28.86 0 0 0 0-40.81z"/></svg>
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||||
</div>
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||||
<div class="md-source__repository">
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kubernetes/ingress-nginx
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</div>
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@ -320,13 +262,19 @@
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<li class="md-nav__item md-nav__item--nested">
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|
||||
<input class="md-toggle md-nav__toggle" data-md-toggle="nav-1" type="checkbox" id="nav-1">
|
||||
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-1" type="checkbox" id="nav-1">
|
||||
|
||||
<label class="md-nav__link" for="nav-1">
|
||||
Welcome
|
||||
<span class="md-nav__icon md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59,16.58L13.17,12L8.59,7.41L10,6L16,12L10,18L8.59,16.58Z" /></svg>
|
||||
</span>
|
||||
</label>
|
||||
<nav class="md-nav" data-md-component="collapsible" data-md-level="1">
|
||||
<nav class="md-nav" aria-label="Welcome" data-md-level="1">
|
||||
<label class="md-nav__title" for="nav-1">
|
||||
<span class="md-nav__icon md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20,11V13H8L13.5,18.5L12.08,19.92L4.16,12L12.08,4.08L13.5,5.5L8,11H20Z" /></svg>
|
||||
</span>
|
||||
Welcome
|
||||
</label>
|
||||
<ul class="md-nav__list" data-md-scrollfix>
|
||||
|
|
@ -404,13 +352,19 @@
|
|||
|
||||
<li class="md-nav__item md-nav__item--nested">
|
||||
|
||||
<input class="md-toggle md-nav__toggle" data-md-toggle="nav-2" type="checkbox" id="nav-2">
|
||||
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-2" type="checkbox" id="nav-2">
|
||||
|
||||
<label class="md-nav__link" for="nav-2">
|
||||
Deployment
|
||||
<span class="md-nav__icon md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59,16.58L13.17,12L8.59,7.41L10,6L16,12L10,18L8.59,16.58Z" /></svg>
|
||||
</span>
|
||||
</label>
|
||||
<nav class="md-nav" data-md-component="collapsible" data-md-level="1">
|
||||
<nav class="md-nav" aria-label="Deployment" data-md-level="1">
|
||||
<label class="md-nav__title" for="nav-2">
|
||||
<span class="md-nav__icon md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20,11V13H8L13.5,18.5L12.08,19.92L4.16,12L12.08,4.08L13.5,5.5L8,11H20Z" /></svg>
|
||||
</span>
|
||||
Deployment
|
||||
</label>
|
||||
<ul class="md-nav__list" data-md-scrollfix>
|
||||
|
|
@ -488,13 +442,19 @@
|
|||
|
||||
<li class="md-nav__item md-nav__item--nested">
|
||||
|
||||
<input class="md-toggle md-nav__toggle" data-md-toggle="nav-3" type="checkbox" id="nav-3">
|
||||
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-3" type="checkbox" id="nav-3">
|
||||
|
||||
<label class="md-nav__link" for="nav-3">
|
||||
User guide
|
||||
<span class="md-nav__icon md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59,16.58L13.17,12L8.59,7.41L10,6L16,12L10,18L8.59,16.58Z" /></svg>
|
||||
</span>
|
||||
</label>
|
||||
<nav class="md-nav" data-md-component="collapsible" data-md-level="1">
|
||||
<nav class="md-nav" aria-label="User guide" data-md-level="1">
|
||||
<label class="md-nav__title" for="nav-3">
|
||||
<span class="md-nav__icon md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20,11V13H8L13.5,18.5L12.08,19.92L4.16,12L12.08,4.08L13.5,5.5L8,11H20Z" /></svg>
|
||||
</span>
|
||||
User guide
|
||||
</label>
|
||||
<ul class="md-nav__list" data-md-scrollfix>
|
||||
|
|
@ -507,13 +467,19 @@
|
|||
|
||||
<li class="md-nav__item md-nav__item--nested">
|
||||
|
||||
<input class="md-toggle md-nav__toggle" data-md-toggle="nav-3-1" type="checkbox" id="nav-3-1">
|
||||
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-3-1" type="checkbox" id="nav-3-1">
|
||||
|
||||
<label class="md-nav__link" for="nav-3-1">
|
||||
NGINX Configuration
|
||||
<span class="md-nav__icon md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59,16.58L13.17,12L8.59,7.41L10,6L16,12L10,18L8.59,16.58Z" /></svg>
|
||||
</span>
|
||||
</label>
|
||||
<nav class="md-nav" data-md-component="collapsible" data-md-level="2">
|
||||
<nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
|
||||
<label class="md-nav__title" for="nav-3-1">
|
||||
<span class="md-nav__icon md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20,11V13H8L13.5,18.5L12.08,19.92L4.16,12L12.08,4.08L13.5,5.5L8,11H20Z" /></svg>
|
||||
</span>
|
||||
NGINX Configuration
|
||||
</label>
|
||||
<ul class="md-nav__list" data-md-scrollfix>
|
||||
|
|
@ -735,13 +701,19 @@
|
|||
|
||||
<li class="md-nav__item md-nav__item--nested">
|
||||
|
||||
<input class="md-toggle md-nav__toggle" data-md-toggle="nav-3-13" type="checkbox" id="nav-3-13">
|
||||
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-3-13" type="checkbox" id="nav-3-13">
|
||||
|
||||
<label class="md-nav__link" for="nav-3-13">
|
||||
Third party addons
|
||||
<span class="md-nav__icon md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59,16.58L13.17,12L8.59,7.41L10,6L16,12L10,18L8.59,16.58Z" /></svg>
|
||||
</span>
|
||||
</label>
|
||||
<nav class="md-nav" data-md-component="collapsible" data-md-level="2">
|
||||
<nav class="md-nav" aria-label="Third party addons" data-md-level="2">
|
||||
<label class="md-nav__title" for="nav-3-13">
|
||||
<span class="md-nav__icon md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20,11V13H8L13.5,18.5L12.08,19.92L4.16,12L12.08,4.08L13.5,5.5L8,11H20Z" /></svg>
|
||||
</span>
|
||||
Third party addons
|
||||
</label>
|
||||
<ul class="md-nav__list" data-md-scrollfix>
|
||||
|
|
@ -788,13 +760,19 @@
|
|||
|
||||
<li class="md-nav__item md-nav__item--nested">
|
||||
|
||||
<input class="md-toggle md-nav__toggle" data-md-toggle="nav-4" type="checkbox" id="nav-4">
|
||||
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-4" type="checkbox" id="nav-4">
|
||||
|
||||
<label class="md-nav__link" for="nav-4">
|
||||
Examples
|
||||
<span class="md-nav__icon md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59,16.58L13.17,12L8.59,7.41L10,6L16,12L10,18L8.59,16.58Z" /></svg>
|
||||
</span>
|
||||
</label>
|
||||
<nav class="md-nav" data-md-component="collapsible" data-md-level="1">
|
||||
<nav class="md-nav" aria-label="Examples" data-md-level="1">
|
||||
<label class="md-nav__title" for="nav-4">
|
||||
<span class="md-nav__icon md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20,11V13H8L13.5,18.5L12.08,19.92L4.16,12L12.08,4.08L13.5,5.5L8,11H20Z" /></svg>
|
||||
</span>
|
||||
Examples
|
||||
</label>
|
||||
<ul class="md-nav__list" data-md-scrollfix>
|
||||
|
|
@ -843,13 +821,19 @@
|
|||
|
||||
<li class="md-nav__item md-nav__item--nested">
|
||||
|
||||
<input class="md-toggle md-nav__toggle" data-md-toggle="nav-4-4" type="checkbox" id="nav-4-4">
|
||||
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-4" type="checkbox" id="nav-4-4">
|
||||
|
||||
<label class="md-nav__link" for="nav-4-4">
|
||||
Auth
|
||||
<span class="md-nav__icon md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59,16.58L13.17,12L8.59,7.41L10,6L16,12L10,18L8.59,16.58Z" /></svg>
|
||||
</span>
|
||||
</label>
|
||||
<nav class="md-nav" data-md-component="collapsible" data-md-level="2">
|
||||
<nav class="md-nav" aria-label="Auth" data-md-level="2">
|
||||
<label class="md-nav__title" for="nav-4-4">
|
||||
<span class="md-nav__icon md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20,11V13H8L13.5,18.5L12.08,19.92L4.16,12L12.08,4.08L13.5,5.5L8,11H20Z" /></svg>
|
||||
</span>
|
||||
Auth
|
||||
</label>
|
||||
<ul class="md-nav__list" data-md-scrollfix>
|
||||
|
|
@ -915,13 +899,19 @@
|
|||
|
||||
<li class="md-nav__item md-nav__item--nested">
|
||||
|
||||
<input class="md-toggle md-nav__toggle" data-md-toggle="nav-4-5" type="checkbox" id="nav-4-5">
|
||||
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-5" type="checkbox" id="nav-4-5">
|
||||
|
||||
<label class="md-nav__link" for="nav-4-5">
|
||||
Customization
|
||||
<span class="md-nav__icon md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59,16.58L13.17,12L8.59,7.41L10,6L16,12L10,18L8.59,16.58Z" /></svg>
|
||||
</span>
|
||||
</label>
|
||||
<nav class="md-nav" data-md-component="collapsible" data-md-level="2">
|
||||
<nav class="md-nav" aria-label="Customization" data-md-level="2">
|
||||
<label class="md-nav__title" for="nav-4-5">
|
||||
<span class="md-nav__icon md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20,11V13H8L13.5,18.5L12.08,19.92L4.16,12L12.08,4.08L13.5,5.5L8,11H20Z" /></svg>
|
||||
</span>
|
||||
Customization
|
||||
</label>
|
||||
<ul class="md-nav__list" data-md-scrollfix>
|
||||
|
|
@ -1116,13 +1106,18 @@
|
|||
<div class="md-sidebar__scrollwrap">
|
||||
<div class="md-sidebar__inner">
|
||||
|
||||
<nav class="md-nav md-nav--secondary">
|
||||
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<label class="md-nav__title" for="__toc">Table of contents</label>
|
||||
<label class="md-nav__title" for="__toc">
|
||||
<span class="md-nav__icon md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20,11V13H8L13.5,18.5L12.08,19.92L4.16,12L12.08,4.08L13.5,5.5L8,11H20Z" /></svg>
|
||||
</span>
|
||||
Table of contents
|
||||
</label>
|
||||
<ul class="md-nav__list" data-md-scrollfix>
|
||||
|
||||
<li class="md-nav__item">
|
||||
|
|
@ -1144,7 +1139,7 @@
|
|||
Motivation
|
||||
</a>
|
||||
|
||||
<nav class="md-nav">
|
||||
<nav class="md-nav" aria-label="Motivation">
|
||||
<ul class="md-nav__list">
|
||||
|
||||
<li class="md-nav__item">
|
||||
|
|
@ -1187,10 +1182,6 @@
|
|||
|
||||
</li>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
</ul>
|
||||
|
||||
</nav>
|
||||
|
|
@ -1203,7 +1194,12 @@
|
|||
<article class="md-content__inner md-typeset">
|
||||
|
||||
|
||||
<a href="https://github.com/kubernetes/ingress-nginx/edit/master/docs/enhancements/20190815-zone-aware-routing.md" title="Edit this page" class="md-icon md-content__icon"></a>
|
||||
<a href="https://github.com/kubernetes/ingress-nginx/edit/master/docs/enhancements/20190815-zone-aware-routing.md" title="Edit this page" class="md-content__button md-icon">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20.71,7.04C21.1,6.65 21.1,6 20.71,5.63L18.37,3.29C18,2.9 17.35,2.9 16.96,3.29L15.12,5.12L18.87,8.87M3,17.25V21H6.75L17.81,9.93L14.06,6.18L3,17.25Z" /></svg>
|
||||
</a>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<h1 id="availability-zone-aware-routing">Availability zone aware routing<a class="headerlink" href="#availability-zone-aware-routing" title="Permanent link"> ¶</a></h1>
|
||||
|
|
@ -1250,13 +1246,13 @@ if there is no zone-local endpoint then it will fallback to current behaviour.</
|
|||
<p><strong>How does controller know what zone it runs in?</strong>
|
||||
We can have the pod spec do pass node name using downward API as an environment variable.
|
||||
Then on start controller can get node details from the API based on node name. Once the node details is obtained
|
||||
we can extract the zone from <code class="codehilite"><span class="err">failure-domain.beta.kubernetes.io/zone</span></code> annotation. Then we can pass that value to Lua land through Nginx configuration
|
||||
when loading <code class="codehilite"><span class="err">lua_ingress.lua</span></code> module in <code class="codehilite"><span class="err">init_by_lua</span></code> phase.</p>
|
||||
we can extract the zone from <code>failure-domain.beta.kubernetes.io/zone</code> annotation. Then we can pass that value to Lua land through Nginx configuration
|
||||
when loading <code>lua_ingress.lua</code> module in <code>init_by_lua</code> phase.</p>
|
||||
<p><strong>How do we extract zones for endpoints?</strong>
|
||||
We can have the controller watch create and update events on nodes in the entire cluster and based on that keep the map of nodes to zones in the memory.
|
||||
And when we generate endpoints list, we can access node name using <code class="codehilite"><span class="p">.</span><span class="n">subsets</span><span class="p">.</span><span class="n">addresses</span><span class="o">[</span><span class="n">i</span><span class="o">]</span><span class="p">.</span><span class="n">nodeName</span><span class="w"></span></code>
|
||||
And when we generate endpoints list, we can access node name using <code>.subsets.addresses[i].nodeName</code>
|
||||
and based on that fetch zone from the map in memory and store it as a field on the endpoint.
|
||||
<strong>This solution assumes <code class="codehilite"><span class="err">failure-domain.beta.kubernetes.io/zone</span></code></strong> annotation does not change until the end of node's life. Otherwise we have to
|
||||
<strong>This solution assumes <code>failure-domain.beta.kubernetes.io/zone</code></strong> annotation does not change until the end of node's life. Otherwise we have to
|
||||
watch update events as well on the nodes and that'll add even more overhead.</p>
|
||||
<p>Alternatively, we can get the list of nodes only when there's no node in the memory for given node name. This is probably a better solution
|
||||
because then we would avoid watching for API changes on node resources. We can eagrly fetch all the nodes and build node name to zone mapping on start.
|
||||
|
|
@ -1279,7 +1275,6 @@ see no endpoints for the backend and therefore we will use general balancer.</p>
|
|||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
|
@ -1298,11 +1293,10 @@ see no endpoints for the backend and therefore we will use general balancer.</p>
|
|||
<div class="md-footer-meta__inner md-grid">
|
||||
<div class="md-footer-copyright">
|
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|
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|
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|
||||
|
||||
</div>
|
||||
|
|
@ -1311,9 +1305,18 @@ see no endpoints for the backend and therefore we will use general balancer.</p>
|
|||
|
||||
</div>
|
||||
|
||||
<script src="../../assets/javascripts/application.df00da5d.js"></script>
|
||||
<script src="../../assets/javascripts/vendor.36cbf620.min.js"></script>
|
||||
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<script>app.initialize({version:"1.0.4",url:{base:"../.."}})</script>
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search: Object.assign({
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}, typeof search !== "undefined" && search)
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|
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