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671 lines
20 KiB
HTML
671 lines
20 KiB
HTML
5 years ago
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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="http://containrrr.github.io/watchtower/private-registries/">
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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-4.6.0">
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<title>Private registries - Watchtower</title>
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<link rel="stylesheet" href="../assets/stylesheets/application.1b62728e.css">
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<script src="../assets/javascripts/modernizr.268332fc.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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<link rel="stylesheet" href="../assets/fonts/material-icons.css">
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</head>
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<body dir="ltr">
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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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</defs>
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</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">
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<label class="md-overlay" data-md-component="overlay" for="__drawer"></label>
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<a href="#create_the_configuration_file_manually" tabindex="1" class="md-skip">
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Skip to content
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</a>
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<header class="md-header" data-md-component="header">
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<nav class="md-header-nav md-grid">
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<div class="md-flex">
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<div class="md-flex__cell md-flex__cell--shrink">
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<a href="http://containrrr.github.io/watchtower/" title="Watchtower" class="md-header-nav__button md-logo">
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<i class="md-icon"></i>
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</a>
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</div>
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<div class="md-flex__cell md-flex__cell--shrink">
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<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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Watchtower
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</span>
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<span class="md-header-nav__topic">
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Private registries
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</span>
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</div>
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</div>
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<div class="md-flex__cell md-flex__cell--shrink">
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<label class="md-icon md-icon--search md-header-nav__button" for="__search"></label>
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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>
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<div class="md-search__inner" role="search">
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<form class="md-search__form" name="search">
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<input type="text" class="md-search__input" name="query" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="query" data-md-state="active">
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<label class="md-icon md-search__icon" for="__search"></label>
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<button type="reset" class="md-icon md-search__icon" data-md-component="reset" tabindex="-1">
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
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</button>
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</form>
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<div class="md-search__output">
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<div class="md-search__scrollwrap" data-md-scrollfix>
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<div class="md-search-result" data-md-component="result">
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<div class="md-search-result__meta">
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Type to start searching
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</div>
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<ol class="md-search-result__list"></ol>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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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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<a href="https://github.com/containrrr/watchtower/" title="Go to repository" class="md-source" data-md-source="github">
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<div class="md-source__icon">
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<svg viewBox="0 0 24 24" width="24" height="24">
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<use xlink:href="#__github" width="24" height="24"></use>
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</svg>
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</div>
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<div class="md-source__repository">
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GitHub
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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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</nav>
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</header>
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<div class="md-container">
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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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<div class="md-sidebar md-sidebar--primary" data-md-component="navigation">
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<div class="md-sidebar__scrollwrap">
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<div class="md-sidebar__inner">
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<nav class="md-nav md-nav--primary" data-md-level="0">
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<label class="md-nav__title md-nav__title--site" for="__drawer">
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<a href="http://containrrr.github.io/watchtower/" title="Watchtower" class="md-nav__button md-logo">
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<i class="md-icon"></i>
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</a>
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Watchtower
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</label>
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<div class="md-nav__source">
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<a href="https://github.com/containrrr/watchtower/" title="Go to repository" class="md-source" data-md-source="github">
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<div class="md-source__icon">
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<svg viewBox="0 0 24 24" width="24" height="24">
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<use xlink:href="#__github" width="24" height="24"></use>
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</svg>
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</div>
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<div class="md-source__repository">
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GitHub
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</div>
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</a>
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</div>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href=".." title="Home" class="md-nav__link">
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Home
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../introduction/" title="Introduction" class="md-nav__link">
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Introduction
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../usage-overview/" title="Usage overview" class="md-nav__link">
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Usage overview
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../arguments/" title="Arguments" class="md-nav__link">
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Arguments
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../notifications/" title="Notifications" class="md-nav__link">
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Notifications
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../container-selection/" title="Container selection" class="md-nav__link">
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Container selection
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</a>
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</li>
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<li class="md-nav__item md-nav__item--active">
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<input class="md-toggle md-nav__toggle" data-md-toggle="toc" type="checkbox" id="__toc">
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<label class="md-nav__link md-nav__link--active" for="__toc">
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5 years ago
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Private registries
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5 years ago
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</label>
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5 years ago
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<a href="./" title="Private registries" class="md-nav__link md-nav__link--active">
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Private registries
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5 years ago
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</a>
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<nav class="md-nav md-nav--secondary">
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<label class="md-nav__title" for="__toc">Table of contents</label>
|
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<ul class="md-nav__list" data-md-scrollfix>
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|
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<li class="md-nav__item">
|
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5 years ago
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<a href="#create_the_configuration_file_manually" class="md-nav__link">
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Create the configuration file manually
|
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</a>
|
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</li>
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<li class="md-nav__item">
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||
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<a href="#share_the_docker_configuration_file" class="md-nav__link">
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Share the Docker configuration file
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</a>
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</li>
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<li class="md-nav__item">
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<a href="#credential_helpers" class="md-nav__link">
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Credential helpers
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</a>
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<nav class="md-nav">
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<ul class="md-nav__list">
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<li class="md-nav__item">
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5 years ago
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<a href="#example" class="md-nav__link">
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Example
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</a>
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||
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</li>
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||
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5 years ago
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</ul>
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</nav>
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||
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</li>
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5 years ago
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</ul>
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</nav>
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</li>
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<li class="md-nav__item">
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<a href="../linked-containers/" title="Linked containers" class="md-nav__link">
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Linked containers
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../remote-hosts/" title="Remote hosts" class="md-nav__link">
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Remote hosts
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../secure-connections/" title="Secure connections" class="md-nav__link">
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Secure connections
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</a>
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<li class="md-nav__item">
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<a href="../stop-signals/" title="Stop signals" class="md-nav__link">
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Stop signals
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</a>
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</li>
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5 years ago
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<li class="md-nav__item">
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<a href="../lifecycle-hooks/" title="Lifecycle hooks" class="md-nav__link">
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Lifecycle hooks
|
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</a>
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</li>
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5 years ago
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</ul>
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</nav>
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</div>
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</div>
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<div class="md-sidebar md-sidebar--secondary" data-md-component="toc">
|
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<div class="md-sidebar__scrollwrap">
|
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<div class="md-sidebar__inner">
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<nav class="md-nav md-nav--secondary">
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<label class="md-nav__title" for="__toc">Table of contents</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
|
||
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5 years ago
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<a href="#create_the_configuration_file_manually" class="md-nav__link">
|
||
|
|
Create the configuration file manually
|
||
|
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</a>
|
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||
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</li>
|
||
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|
||
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<li class="md-nav__item">
|
||
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<a href="#share_the_docker_configuration_file" class="md-nav__link">
|
||
|
|
Share the Docker configuration file
|
||
|
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</a>
|
||
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||
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</li>
|
||
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|
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<li class="md-nav__item">
|
||
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<a href="#credential_helpers" class="md-nav__link">
|
||
|
|
Credential helpers
|
||
|
|
</a>
|
||
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|
||
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<nav class="md-nav">
|
||
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<ul class="md-nav__list">
|
||
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|
||
|
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<li class="md-nav__item">
|
||
|
5 years ago
|
<a href="#example" class="md-nav__link">
|
||
|
|
Example
|
||
|
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</a>
|
||
|
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|
||
|
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</li>
|
||
|
5 years ago
|
|
||
|
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</ul>
|
||
|
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</nav>
|
||
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|
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</li>
|
||
|
5 years ago
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|
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</ul>
|
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|
||
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</nav>
|
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</div>
|
||
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</div>
|
||
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</div>
|
||
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|
||
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|
||
|
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<div class="md-content">
|
||
|
|
<article class="md-content__inner md-typeset">
|
||
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|
||
|
|
|
||
|
5 years ago
|
<a href="https://github.com/containrrr/watchtower/edit/master/docs/private-registries.md" title="Edit this page" class="md-icon md-content__icon"></a>
|
||
|
5 years ago
|
|
||
|
|
|
||
|
5 years ago
|
<h1>Private registries</h1>
|
||
|
5 years ago
|
|
||
|
5 years ago
|
<p>Watchtower supports private Docker image registries. In many cases, accessing a private registry requires a valid username and password (i.e., <em>credentials</em>). In order to operate in such an environment, watchtower needs to know the credentials to access the registry. </p>
|
||
|
|
<p>The credentials can be provided to watchtower in a configuration file called <code>config.json</code>. There are two ways to generate this configuration file:</p>
|
||
|
|
<ul>
|
||
|
|
<li>The configuration file can be created manually.</li>
|
||
|
|
<li>Call <code>docker login <REGISTRY_NAME></code> and share the resulting configuration file.</li>
|
||
|
|
</ul>
|
||
|
|
<h3 id="create_the_configuration_file_manually">Create the configuration file manually<a class="headerlink" href="#create_the_configuration_file_manually" title="Permanent link">¶</a></h3>
|
||
|
|
<p>Create a new configuration file with the following syntax and a base64 encoded username and password <code>auth</code> string:</p>
|
||
|
|
<pre><code class="json">{
|
||
|
|
"auths": {
|
||
|
|
"<REGISTRY_NAME>": {
|
||
|
|
"auth": "XXXXXXX"
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
</code></pre>
|
||
|
|
|
||
|
|
<p><code><REGISTRY_NAME></code> needs to be replaced by the name of your private registry (e.g., <code>my-private-registry.example.org</code>)</p>
|
||
|
|
<p>The required <code>auth</code> string can be generated as follows:</p>
|
||
|
|
<pre><code class="bash">echo -n 'username:password' | base64
|
||
|
|
</code></pre>
|
||
|
|
|
||
|
|
<p>When the watchtower Docker container is started, the created configuration file (<code><PATH>/config.json</code> in this example) needs to be passed to the container:</p>
|
||
|
|
<pre><code class="bash">docker run [...] -v <PATH>/config.json:/config.json containrrr/watchtower
|
||
|
|
</code></pre>
|
||
|
|
|
||
|
|
<h3 id="share_the_docker_configuration_file">Share the Docker configuration file<a class="headerlink" href="#share_the_docker_configuration_file" title="Permanent link">¶</a></h3>
|
||
|
|
<p>To pull an image from a private registry, <code>docker login</code> needs to be called first, to get access to the registry. The provided credentials are stored in a configuration file called <code><PATH_TO_HOME_DIR>/.docker/config.json</code>. This configuration file can be directly used by watchtower. In this case, the creation of an additional configuration file is not necessary.</p>
|
||
|
|
<p>When the Docker container is started, pass the configuration file to watchtower:</p>
|
||
|
|
<pre><code class="bash">docker run [...] -v <PATH_TO_HOME_DIR>/.docker/config.json:/config.json containrrr/watchtower
|
||
|
|
</code></pre>
|
||
|
|
|
||
|
|
<p>When creating the watchtower container via docker-compose, use the following lines:</p>
|
||
|
|
<pre><code class="yaml">version: "3"
|
||
|
|
[...]
|
||
|
|
watchtower:
|
||
|
|
image: index.docker.io/containrrr/watchtower:latest
|
||
|
|
volumes:
|
||
|
|
- /var/run/docker.sock:/var/run/docker.sock
|
||
|
|
- <PATH_TO_HOME_DIR>/.docker/config.json:/config.json
|
||
|
|
[...]
|
||
|
|
</code></pre>
|
||
|
|
|
||
|
|
<h2 id="credential_helpers">Credential helpers<a class="headerlink" href="#credential_helpers" title="Permanent link">¶</a></h2>
|
||
|
|
<p>Some private Docker registries (the most prominent probably being AWS ECR) use non-standard ways of authentication.
|
||
|
5 years ago
|
To be able to use this together with watchtower, we need to use a credential helper.</p>
|
||
|
|
<p>To keep the image size small we've decided to not include any helpers in the watchtower image, instead we'll put the
|
||
|
|
helper in a separate container and mount it using volumes.</p>
|
||
|
|
<h3 id="example">Example<a class="headerlink" href="#example" title="Permanent link">¶</a></h3>
|
||
|
|
<p>Example implementation for use with <a href="https://github.com/awslabs/amazon-ecr-credential-helper">amazon-ecr-credential-helper</a>:</p>
|
||
|
|
<pre><code class="Dockerfile">FROM golang:latest
|
||
|
|
|
||
|
|
ENV CGO_ENABLED 0
|
||
|
|
ENV REPO github.com/awslabs/amazon-ecr-credential-helper/ecr-login/cli/docker-credential-ecr-login
|
||
|
|
|
||
|
|
RUN go get -u $REPO
|
||
|
|
|
||
|
|
RUN rm /go/bin/docker-credential-ecr-login
|
||
|
|
|
||
|
|
RUN go build \
|
||
|
|
-o /go/bin/docker-credential-ecr-login \
|
||
|
|
/go/src/$REPO
|
||
|
|
|
||
|
|
WORKDIR /go/bin/
|
||
|
|
</code></pre>
|
||
|
|
|
||
|
|
<p>and the docker-compose definition:</p>
|
||
|
|
<pre><code class="yaml">version: "3"
|
||
|
|
|
||
|
|
services:
|
||
|
|
watchtower:
|
||
|
|
image: index.docker.io/containrrr/watchtower:latest
|
||
|
|
volumes:
|
||
|
|
- /var/run/docker.sock:/var/run/docker.sock
|
||
|
|
- <PATH_TO_HOME_DIR>/.docker/config.json:/config.json
|
||
|
|
- helper:/go/bin
|
||
|
|
environment:
|
||
|
|
- HOME=/
|
||
|
|
- PATH=$PATH:/go/bin
|
||
|
|
- AWS_REGION=<AWS_REGION>
|
||
|
|
- AWS_ACCESS_KEY_ID=<AWS_ACCESS_KEY>
|
||
|
|
- AWS_SECRET_ACCESS_KEY=<AWS_SECRET_ACCESS_KEY>
|
||
|
|
volumes:
|
||
|
|
helper: {}
|
||
|
|
</code></pre>
|
||
|
|
|
||
|
5 years ago
|
<p>and for <code><PATH_TO_HOME_DIR>/.docker/config.json</code>:</p>
|
||
|
|
<pre><code class="json"> {
|
||
|
5 years ago
|
"HttpHeaders" : {
|
||
|
|
"User-Agent" : "Docker-Client/19.03.1 (XXXXXX)"
|
||
|
|
},
|
||
|
5 years ago
|
"credsStore" : "osxkeychain",
|
||
|
5 years ago
|
"auths" : {
|
||
|
|
"xyzxyzxyz.dkr.ecr.eu-north-1.amazonaws.com" : {},
|
||
|
|
"https://index.docker.io/v1/": {}
|
||
|
|
},
|
||
|
|
"credHelpers": {
|
||
|
|
"xyzxyzxyz.dkr.ecr.eu-north-1.amazonaws.com" : "ecr-login",
|
||
|
5 years ago
|
"index.docker.io": "osxkeychain"
|
||
|
5 years ago
|
}
|
||
|
|
}
|
||
|
|
</code></pre>
|
||
|
5 years ago
|
|
||
|
|
<p><em>Note:</em> <code>osxkeychain</code> can be changed to your prefered credentials helper.</p>
|
||
|
5 years ago
|
|
||
|
|
|
||
|
|
|
||
|
5 years ago
|
|
||
|
5 years ago
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
</article>
|
||
|
|
</div>
|
||
|
|
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