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1192 lines
38 KiB
HTML
1192 lines
38 KiB
HTML
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<meta name="generator" content="mkdocs-1.1.2, mkdocs-material-7.1.3">
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<title>Arguments - Watchtower</title>
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<body dir="ltr" data-md-color-scheme="containrrr" data-md-color-primary="" data-md-color-accent="">
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<script>function __prefix(e){return new URL("..",location).pathname+"."+e}function __get(e,t=localStorage){return JSON.parse(t.getItem(__prefix(e)))}</script>
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Skip to content
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<header class="md-header" data-md-component="header">
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<nav class="md-header__inner md-grid" aria-label="Header">
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<a href=".." title="Watchtower" class="md-header__button md-logo" aria-label="Watchtower" data-md-component="logo">
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<img src="../images/logo-450px.png" alt="logo">
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<span class="md-ellipsis">
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Watchtower
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<div class="md-header__topic" data-md-component="header-topic">
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<span class="md-ellipsis">
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Arguments
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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 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5z"/></svg>
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<div class="md-search" data-md-component="search" role="dialog">
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<form class="md-search__form" name="search">
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<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" required>
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<div class="md-search-result__meta">
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Initializing search
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<ol class="md-search-result__list"></ol>
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<a href="https://github.com/containrrr/watchtower/" title="Go to repository" class="md-source" data-md-component="source">
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Watchtower
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<div class="md-source__repository">
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GitHub
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</a>
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<ul class="md-nav__list" data-md-scrollfix>
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Home
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<li class="md-nav__item">
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<a href="../introduction/" class="md-nav__link">
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Introduction
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</a>
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<li class="md-nav__item">
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<a href="../usage-overview/" class="md-nav__link">
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Usage overview
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<li class="md-nav__item md-nav__item--active">
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<input class="md-nav__toggle md-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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Arguments
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<span class="md-nav__icon md-icon"></span>
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</label>
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<a href="./" class="md-nav__link md-nav__link--active">
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Arguments
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</a>
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<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
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<label class="md-nav__title" for="__toc">
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<span class="md-nav__icon md-icon"></span>
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Table of contents
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<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="#help" class="md-nav__link">
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Help
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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="#time_zone" class="md-nav__link">
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Time Zone
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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="#cleanup" class="md-nav__link">
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Cleanup
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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="#remove_attached_volumes" class="md-nav__link">
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Remove attached volumes
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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="#debug" class="md-nav__link">
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Debug
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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="#trace" class="md-nav__link">
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Trace
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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="#ansi_colors" class="md-nav__link">
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ANSI colors
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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="#docker_host" class="md-nav__link">
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Docker host
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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="#docker_api_version" class="md-nav__link">
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Docker API version
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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="#include_restarting" class="md-nav__link">
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Include restarting
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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="#include_stopped" class="md-nav__link">
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Include stopped
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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="#revive_stopped" class="md-nav__link">
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Revive stopped
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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="#poll_interval" class="md-nav__link">
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Poll interval
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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="#filter_by_enable_label" class="md-nav__link">
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Filter by enable label
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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="#filter_by_disable_label" class="md-nav__link">
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Filter by disable label
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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="#without_updating_containers" class="md-nav__link">
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Without updating 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="#without_restarting_containers" class="md-nav__link">
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Without restarting 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="#without_pulling_new_images" class="md-nav__link">
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Without pulling new images
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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="#without_sending_a_startup_message" class="md-nav__link">
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Without sending a startup message
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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="#run_once" class="md-nav__link">
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Run once
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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="#http_api_mode" class="md-nav__link">
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HTTP API Mode
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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="#http_api_token" class="md-nav__link">
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HTTP API Token
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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="#filter_by_scope" class="md-nav__link">
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Filter by scope
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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="#http_api_metrics" class="md-nav__link">
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HTTP API Metrics
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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="#scheduling" class="md-nav__link">
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Scheduling
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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="#rolling_restart" class="md-nav__link">
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Rolling restart
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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="#wait_until_timeout" class="md-nav__link">
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Wait until timeout
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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="#tls_verification" class="md-nav__link">
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TLS Verification
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</a>
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</li>
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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="../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/" 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">
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<a href="../private-registries/" class="md-nav__link">
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Private registries
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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="../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/" 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/" 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/" class="md-nav__link">
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Stop signals
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</a>
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<li class="md-nav__item">
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<a href="../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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<a href="../running-multiple-instances/" class="md-nav__link">
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Running multiple instances
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</a>
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<li class="md-nav__item">
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<a href="../metrics/" class="md-nav__link">
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Metrics
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</a>
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</li>
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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>
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<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="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" aria-label="Table of contents">
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<label class="md-nav__title" for="__toc">
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<span class="md-nav__icon md-icon"></span>
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Table of contents
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</label>
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<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="#help" class="md-nav__link">
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Help
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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="#time_zone" class="md-nav__link">
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Time Zone
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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="#cleanup" class="md-nav__link">
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Cleanup
|
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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="#remove_attached_volumes" class="md-nav__link">
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Remove attached volumes
|
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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="#debug" class="md-nav__link">
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Debug
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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="#trace" class="md-nav__link">
|
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Trace
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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="#ansi_colors" class="md-nav__link">
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ANSI colors
|
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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="#docker_host" class="md-nav__link">
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Docker host
|
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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="#docker_api_version" class="md-nav__link">
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Docker API version
|
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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="#include_restarting" class="md-nav__link">
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Include restarting
|
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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="#include_stopped" class="md-nav__link">
|
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Include stopped
|
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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="#revive_stopped" class="md-nav__link">
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Revive stopped
|
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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="#poll_interval" class="md-nav__link">
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Poll interval
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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="#filter_by_enable_label" class="md-nav__link">
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Filter by enable label
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</a>
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</li>
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<li class="md-nav__item">
|
|
<a href="#filter_by_disable_label" class="md-nav__link">
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Filter by disable label
|
|
</a>
|
|
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</li>
|
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<li class="md-nav__item">
|
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<a href="#without_updating_containers" class="md-nav__link">
|
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Without updating 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="#without_restarting_containers" class="md-nav__link">
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Without restarting 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="#without_pulling_new_images" class="md-nav__link">
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Without pulling new images
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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="#without_sending_a_startup_message" class="md-nav__link">
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Without sending a startup message
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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="#run_once" class="md-nav__link">
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Run once
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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="#http_api_mode" class="md-nav__link">
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HTTP API Mode
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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="#http_api_token" class="md-nav__link">
|
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HTTP API Token
|
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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="#filter_by_scope" class="md-nav__link">
|
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Filter by scope
|
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</a>
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</li>
|
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|
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<li class="md-nav__item">
|
|
<a href="#http_api_metrics" class="md-nav__link">
|
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HTTP API Metrics
|
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</a>
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</li>
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<li class="md-nav__item">
|
|
<a href="#scheduling" class="md-nav__link">
|
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Scheduling
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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="#rolling_restart" class="md-nav__link">
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Rolling restart
|
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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="#wait_until_timeout" class="md-nav__link">
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Wait until timeout
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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="#tls_verification" class="md-nav__link">
|
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TLS Verification
|
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</a>
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</li>
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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>
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<div class="md-content" data-md-component="content">
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<article class="md-content__inner md-typeset">
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<a href="https://github.com/containrrr/watchtower/edit/main/docs/arguments.md" title="Edit this page" class="md-content__button md-icon">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20.71 7.04c.39-.39.39-1.04 0-1.41l-2.34-2.34c-.37-.39-1.02-.39-1.41 0l-1.84 1.83 3.75 3.75M3 17.25V21h3.75L17.81 9.93l-3.75-3.75L3 17.25z"/></svg>
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<h1>Arguments</h1>
|
|
|
|
<p>By default, watchtower will monitor all containers running within the Docker daemon to which it is pointed (in most cases this
|
|
will be the local Docker daemon, but you can override it with the <code>--host</code> option described in the next section). However, you
|
|
can restrict watchtower to monitoring a subset of the running containers by specifying the container names as arguments when
|
|
launching watchtower.</p>
|
|
<div class="codehilite"><pre><span></span><code>$ docker run -d <span class="se">\</span>
|
|
--name watchtower <span class="se">\</span>
|
|
-v /var/run/docker.sock:/var/run/docker.sock <span class="se">\</span>
|
|
containrrr/watchtower <span class="se">\</span>
|
|
nginx redis
|
|
</code></pre></div>
|
|
|
|
<p>In the example above, watchtower will only monitor the containers named "nginx" and "redis" for updates -- all of the other
|
|
running containers will be ignored. If you do not want watchtower to run as a daemon you can pass the <code>--run-once</code> flag and remove
|
|
the watchtower container after its execution.</p>
|
|
<div class="codehilite"><pre><span></span><code>$ docker run --rm <span class="se">\</span>
|
|
-v /var/run/docker.sock:/var/run/docker.sock <span class="se">\</span>
|
|
containrrr/watchtower <span class="se">\</span>
|
|
--run-once <span class="se">\</span>
|
|
nginx redis
|
|
</code></pre></div>
|
|
|
|
<p>In the example above, watchtower will execute an upgrade attempt on the containers named "nginx" and "redis". Using this mode will enable debugging output showing all actions performed, as usage is intended for interactive users. Once the attempt is completed, the container will exit and remove itself due to the <code>--rm</code> flag.</p>
|
|
<p>When no arguments are specified, watchtower will monitor all running containers.</p>
|
|
<h2 id="help">Help<a class="headerlink" href="#help" title="Permanent link">¶</a></h2>
|
|
<p>Shows documentation about the supported flags.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --help
|
|
Environment Variable: N/A
|
|
Type: N/A
|
|
Default: N/A
|
|
</code></pre></div>
|
|
|
|
<h2 id="time_zone">Time Zone<a class="headerlink" href="#time_zone" title="Permanent link">¶</a></h2>
|
|
<p>Sets the time zone to be used by WatchTower's logs and the optional Cron scheduling argument (--schedule). If this environment variable is not set, Watchtower will use the default time zone: UTC.
|
|
To find out the right value, see <a href="https://en.wikipedia.org/wiki/List_of_tz_database_time_zones">this list</a>, find your location and use the value in <em>TZ Database Name</em>, e.g <em>Europe/Rome</em>. The timezone can alternatively be set by volume mounting your hosts /etc/localtime file. <code>-v /etc/localtime:/etc/localtime:ro</code></p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: N/A
|
|
Environment Variable: TZ
|
|
Type: String
|
|
Default: "UTC"
|
|
</code></pre></div>
|
|
|
|
<h2 id="cleanup">Cleanup<a class="headerlink" href="#cleanup" title="Permanent link">¶</a></h2>
|
|
<p>Removes old images after updating. When this flag is specified, watchtower will remove the old image after restarting a container with a new image. Use this option to prevent the accumulation of orphaned images on your system as containers are updated.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --cleanup
|
|
Environment Variable: WATCHTOWER_CLEANUP
|
|
Type: Boolean
|
|
Default: false
|
|
</code></pre></div>
|
|
|
|
<h2 id="remove_attached_volumes">Remove attached volumes<a class="headerlink" href="#remove_attached_volumes" title="Permanent link">¶</a></h2>
|
|
<p>Removes attached volumes after updating. When this flag is specified, watchtower will remove all attached volumes from the container before restarting with a new image. Use this option to force new volumes to be populated as containers are updated.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --remove-volumes
|
|
Environment Variable: WATCHTOWER_REMOVE_VOLUMES
|
|
Type: Boolean
|
|
Default: false
|
|
</code></pre></div>
|
|
|
|
<h2 id="debug">Debug<a class="headerlink" href="#debug" title="Permanent link">¶</a></h2>
|
|
<p>Enable debug mode with verbose logging.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --debug, -d
|
|
Environment Variable: WATCHTOWER_DEBUG
|
|
Type: Boolean
|
|
Default: false
|
|
</code></pre></div>
|
|
|
|
<h2 id="trace">Trace<a class="headerlink" href="#trace" title="Permanent link">¶</a></h2>
|
|
<p>Enable trace mode with very verbose logging. Caution: exposes credentials!</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --trace
|
|
Environment Variable: WATCHTOWER_TRACE
|
|
Type: Boolean
|
|
Default: false
|
|
</code></pre></div>
|
|
|
|
<h2 id="ansi_colors">ANSI colors<a class="headerlink" href="#ansi_colors" title="Permanent link">¶</a></h2>
|
|
<p>Disable ANSI color escape codes in log output.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --no-color
|
|
Environment Variable: NO_COLOR
|
|
Type: Boolean
|
|
Default: false
|
|
</code></pre></div>
|
|
|
|
<h2 id="docker_host">Docker host<a class="headerlink" href="#docker_host" title="Permanent link">¶</a></h2>
|
|
<p>Docker daemon socket to connect to. Can be pointed at a remote Docker host by specifying a TCP endpoint as "tcp://hostname:port".</p>
|
|
<div class="codehilite"><pre><span></span><code> <span class="n">Argument</span><span class="p">:</span> <span class="o">--</span><span class="n">host</span><span class="p">,</span> <span class="o">-</span><span class="n">H</span>
|
|
<span class="n">Environment</span> <span class="n">Variable</span><span class="p">:</span> <span class="n">DOCKER_HOST</span>
|
|
<span class="n">Type</span><span class="p">:</span> <span class="nb nb-Type">String</span>
|
|
<span class="n">Default</span><span class="p">:</span> <span class="s2">"unix:///var/run/docker.sock"</span>
|
|
</code></pre></div>
|
|
|
|
<h2 id="docker_api_version">Docker API version<a class="headerlink" href="#docker_api_version" title="Permanent link">¶</a></h2>
|
|
<p>The API version to use by the Docker client for connecting to the Docker daemon. The minimum supported version is 1.24.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --api-version, -a
|
|
Environment Variable: DOCKER_API_VERSION
|
|
Type: String
|
|
Default: "1.24"
|
|
</code></pre></div>
|
|
|
|
<h2 id="include_restarting">Include restarting<a class="headerlink" href="#include_restarting" title="Permanent link">¶</a></h2>
|
|
<p>Will also include restarting containers.</p>
|
|
<div class="codehilite"><pre><span></span><code> <span class="nv">Argument</span>: <span class="o">--</span><span class="k">include</span><span class="o">-</span><span class="nv">restarting</span>
|
|
<span class="nv">Environment</span> <span class="nv">Variable</span>: <span class="nv">WATCHTOWER_INCLUDE_RESTARTING</span>
|
|
<span class="nv">Type</span>: <span class="nv">Boolean</span>
|
|
<span class="nv">Default</span>: <span class="nv">false</span>
|
|
</code></pre></div>
|
|
|
|
<h2 id="include_stopped">Include stopped<a class="headerlink" href="#include_stopped" title="Permanent link">¶</a></h2>
|
|
<p>Will also include created and exited containers.</p>
|
|
<div class="codehilite"><pre><span></span><code> <span class="nv">Argument</span>: <span class="o">--</span><span class="k">include</span><span class="o">-</span><span class="nv">stopped</span>
|
|
<span class="nv">Environment</span> <span class="nv">Variable</span>: <span class="nv">WATCHTOWER_INCLUDE_STOPPED</span>
|
|
<span class="nv">Type</span>: <span class="nv">Boolean</span>
|
|
<span class="nv">Default</span>: <span class="nv">false</span>
|
|
</code></pre></div>
|
|
|
|
<h2 id="revive_stopped">Revive stopped<a class="headerlink" href="#revive_stopped" title="Permanent link">¶</a></h2>
|
|
<p>Start any stopped containers that have had their image updated. This argument is only usable with the <code>--include-stopped</code> argument.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --revive-stopped
|
|
Environment Variable: WATCHTOWER_REVIVE_STOPPED
|
|
Type: Boolean
|
|
Default: false
|
|
</code></pre></div>
|
|
|
|
<h2 id="poll_interval">Poll interval<a class="headerlink" href="#poll_interval" title="Permanent link">¶</a></h2>
|
|
<p>Poll interval (in seconds). This value controls how frequently watchtower will poll for new images. Either <code>--schedule</code> or a poll interval can be defined, but not both.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --interval, -i
|
|
Environment Variable: WATCHTOWER_POLL_INTERVAL
|
|
Type: Integer
|
|
Default: 86400 (24 hours)
|
|
</code></pre></div>
|
|
|
|
<h2 id="filter_by_enable_label">Filter by enable label<a class="headerlink" href="#filter_by_enable_label" title="Permanent link">¶</a></h2>
|
|
<p>Update containers that have a <code>com.centurylinklabs.watchtower.enable</code> label set to true.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --label-enable
|
|
Environment Variable: WATCHTOWER_LABEL_ENABLE
|
|
Type: Boolean
|
|
Default: false
|
|
</code></pre></div>
|
|
|
|
<h2 id="filter_by_disable_label">Filter by disable label<a class="headerlink" href="#filter_by_disable_label" title="Permanent link">¶</a></h2>
|
|
<p><strong>Do not</strong> update containers that have <code>com.centurylinklabs.watchtower.enable</code> label set to false and no <code>--label-enable</code> argument is passed. Note that only one or the other (targeting by enable label) can be used at the same time to target containers.</p>
|
|
<h2 id="without_updating_containers">Without updating containers<a class="headerlink" href="#without_updating_containers" title="Permanent link">¶</a></h2>
|
|
<p>Will only monitor for new images, send notifications and invoke the <a href="https://containrrr.dev/watchtower/lifecycle-hooks/">pre-check/post-check hooks</a>, but will <strong>not</strong> update the containers.</p>
|
|
<blockquote>
|
|
<p><strong>⚠️ Please note</strong></p>
|
|
<p>Due to Docker API limitations the latest image will still be pulled from the registry.</p>
|
|
</blockquote>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --monitor-only
|
|
Environment Variable: WATCHTOWER_MONITOR_ONLY
|
|
Type: Boolean
|
|
Default: false
|
|
</code></pre></div>
|
|
|
|
<p>Note that monitor-only can also be specified on a per-container basis with the <code>com.centurylinklabs.watchtower.monitor-only</code> label set on those containers.</p>
|
|
<h2 id="without_restarting_containers">Without restarting containers<a class="headerlink" href="#without_restarting_containers" title="Permanent link">¶</a></h2>
|
|
<p>Do not restart containers after updating. This option can be useful when the start of the containers
|
|
is managed by an external system such as systemd.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --no-restart
|
|
Environment Variable: WATCHTOWER_NO_RESTART
|
|
Type: Boolean
|
|
Default: false
|
|
</code></pre></div>
|
|
|
|
<h2 id="without_pulling_new_images">Without pulling new images<a class="headerlink" href="#without_pulling_new_images" title="Permanent link">¶</a></h2>
|
|
<p>Do not pull new images. When this flag is specified, watchtower will not attempt to pull
|
|
new images from the registry. Instead it will only monitor the local image cache for changes.
|
|
Use this option if you are building new images directly on the Docker host without pushing
|
|
them to a registry.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --no-pull
|
|
Environment Variable: WATCHTOWER_NO_PULL
|
|
Type: Boolean
|
|
Default: false
|
|
</code></pre></div>
|
|
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|
<h2 id="without_sending_a_startup_message">Without sending a startup message<a class="headerlink" href="#without_sending_a_startup_message" title="Permanent link">¶</a></h2>
|
|
<p>Do not send a message after watchtower started. Otherwise there will be an info-level notification.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --no-startup-message
|
|
Environment Variable: WATCHTOWER_NO_STARTUP_MESSAGE
|
|
Type: Boolean
|
|
Default: false
|
|
</code></pre></div>
|
|
|
|
<h2 id="run_once">Run once<a class="headerlink" href="#run_once" title="Permanent link">¶</a></h2>
|
|
<p>Run an update attempt against a container name list one time immediately and exit.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --run-once
|
|
Environment Variable: WATCHTOWER_RUN_ONCE
|
|
Type: Boolean
|
|
Default: false
|
|
</code></pre></div>
|
|
|
|
<h2 id="http_api_mode">HTTP API Mode<a class="headerlink" href="#http_api_mode" title="Permanent link">¶</a></h2>
|
|
<p>Runs Watchtower in HTTP API mode, only allowing image updates to be triggered by an HTTP request. For details see <a href="https://containrrr.github.io/watchtower/http-api-mode">HTTP API</a>.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --http-api-update
|
|
Environment Variable: WATCHTOWER_HTTP_API
|
|
Type: Boolean
|
|
Default: false
|
|
</code></pre></div>
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|
|
<h2 id="http_api_token">HTTP API Token<a class="headerlink" href="#http_api_token" title="Permanent link">¶</a></h2>
|
|
<p>Sets an authentication token to HTTP API requests.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --http-api-token
|
|
Environment Variable: WATCHTOWER_HTTP_API_TOKEN
|
|
Type: String
|
|
Default: -
|
|
</code></pre></div>
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|
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|
<h2 id="filter_by_scope">Filter by scope<a class="headerlink" href="#filter_by_scope" title="Permanent link">¶</a></h2>
|
|
<p>Update containers that have a <code>com.centurylinklabs.watchtower.scope</code> label set with the same value as the given argument. This enables <a href="https://containrrr.github.io/watchtower/running-multiple-instances">running multiple instances</a>.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --scope
|
|
Environment Variable: WATCHTOWER_SCOPE
|
|
Type: String
|
|
Default: -
|
|
</code></pre></div>
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|
|
|
<h2 id="http_api_metrics">HTTP API Metrics<a class="headerlink" href="#http_api_metrics" title="Permanent link">¶</a></h2>
|
|
<p>Enables a metrics endpoint, exposing prometheus metrics via HTTP. See <a href="../metrics/">Metrics</a> for details. </p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --http-api-metrics
|
|
Environment Variable: WATCHTOWER_HTTP_API_METRICS
|
|
Type: Boolean
|
|
Default: false
|
|
</code></pre></div>
|
|
|
|
<h2 id="scheduling">Scheduling<a class="headerlink" href="#scheduling" title="Permanent link">¶</a></h2>
|
|
<p><a href="https://pkg.go.dev/github.com/robfig/cron@v1.2.0?tab=doc#hdr-CRON_Expression_Format">Cron expression</a> in 6 fields (rather than the traditional 5) which defines when and how often to check for new images. Either <code>--interval</code> or the schedule expression
|
|
can be defined, but not both. An example: <code>--schedule "0 0 4 * * *"</code></p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --schedule, -s
|
|
Environment Variable: WATCHTOWER_SCHEDULE
|
|
Type: String
|
|
Default: -
|
|
</code></pre></div>
|
|
|
|
<h2 id="rolling_restart">Rolling restart<a class="headerlink" href="#rolling_restart" title="Permanent link">¶</a></h2>
|
|
<p>Restart one image at time instead of stopping and starting all at once. Useful in conjunction with lifecycle hooks
|
|
to implement zero-downtime deploy.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --rolling-restart
|
|
Environment Variable: WATCHTOWER_ROLLING_RESTART
|
|
Type: Boolean
|
|
Default: false
|
|
</code></pre></div>
|
|
|
|
<h2 id="wait_until_timeout">Wait until timeout<a class="headerlink" href="#wait_until_timeout" title="Permanent link">¶</a></h2>
|
|
<p>Timeout before the container is forcefully stopped. When set, this option will change the default (<code>10s</code>) wait time to the given value. An example: <code>--stop-timeout 30s</code> will set the timeout to 30 seconds.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --stop-timeout
|
|
Environment Variable: WATCHTOWER_TIMEOUT
|
|
Type: Duration
|
|
Default: 10s
|
|
</code></pre></div>
|
|
|
|
<h2 id="tls_verification">TLS Verification<a class="headerlink" href="#tls_verification" title="Permanent link">¶</a></h2>
|
|
<p>Use TLS when connecting to the Docker socket and verify the server's certificate. See below for options used to configure notifications.</p>
|
|
<div class="codehilite"><pre><span></span><code> Argument: --tlsverify
|
|
Environment Variable: DOCKER_TLS_VERIFY
|
|
Type: Boolean
|
|
Default: false
|
|
</code></pre></div>
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