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stop-signals/index.html
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<meta name="viewport" content="width=device-width,initial-scale=1">
<link rel="canonical" href="http://containrrr.github.io/watchtower/stop-signals/">
<link rel="shortcut icon" href="../assets/images/favicon.png">
<meta name="generator" content="mkdocs-1.1.2, mkdocs-material-6.0.1">
<link rel="shortcut icon" href="../images/favicon.ico">
<meta name="generator" content="mkdocs-1.1.2, mkdocs-material-6.1.7">
@ -19,10 +20,10 @@
<link rel="stylesheet" href="../assets/stylesheets/main.38780c08.min.css">
<link rel="stylesheet" href="../assets/stylesheets/main.19753c6b.min.css">
<link rel="stylesheet" href="../assets/stylesheets/palette.3f72e892.min.css">
<link rel="stylesheet" href="../assets/stylesheets/palette.196e0c26.min.css">
@ -37,6 +38,8 @@
<link rel="stylesheet" href="../stylesheets/theme.css">
@ -49,7 +52,7 @@
<body dir="ltr" data-md-color-scheme="" data-md-color-primary="none" data-md-color-accent="none">
<body dir="ltr" data-md-color-scheme="containrrr" data-md-color-primary="" data-md-color-accent="">
<input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
@ -62,12 +65,13 @@
</div>
<header class="md-header" data-md-component="header">
<header class="md-header" data-md-component="header">
<nav class="md-header-nav md-grid" aria-label="Header">
<a href="http://containrrr.github.io/watchtower/" title="Watchtower" class="md-header-nav__button md-logo" aria-label="Watchtower">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 8a3 3 0 003-3 3 3 0 00-3-3 3 3 0 00-3 3 3 3 0 003 3m0 3.54C9.64 9.35 6.5 8 3 8v11c3.5 0 6.64 1.35 9 3.54 2.36-2.19 5.5-3.54 9-3.54V8c-3.5 0-6.64 1.35-9 3.54z"/></svg>
<img src="../images/logo-450px.png" alt="logo">
</a>
<label class="md-header-nav__button md-icon" for="__drawer">
@ -96,7 +100,7 @@
<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" name="query" aria-label="Search" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="search-query" data-md-state="active">
<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>
<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 0116 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 0 019.5 16 6.5 6.5 0 013 9.5 6.5 6.5 0 019.5 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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@ -147,12 +151,13 @@
<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" aria-label="Navigation" data-md-level="0">
<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
<label class="md-nav__title" for="__drawer">
<a href="http://containrrr.github.io/watchtower/" title="Watchtower" class="md-nav__button md-logo" aria-label="Watchtower">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 8a3 3 0 003-3 3 3 0 00-3-3 3 3 0 00-3 3 3 3 0 003 3m0 3.54C9.64 9.35 6.5 8 3 8v11c3.5 0 6.64 1.35 9 3.54 2.36-2.19 5.5-3.54 9-3.54V8c-3.5 0-6.64 1.35-9 3.54z"/></svg>
<img src="../images/logo-450px.png" alt="logo">
</a>
Watchtower
@ -179,7 +184,7 @@
<li class="md-nav__item">
<a href=".." title="Home" class="md-nav__link">
<a href=".." class="md-nav__link">
Home
</a>
</li>
@ -191,7 +196,7 @@
<li class="md-nav__item">
<a href="../introduction/" title="Introduction" class="md-nav__link">
<a href="../introduction/" class="md-nav__link">
Introduction
</a>
</li>
@ -203,7 +208,7 @@
<li class="md-nav__item">
<a href="../usage-overview/" title="Usage overview" class="md-nav__link">
<a href="../usage-overview/" class="md-nav__link">
Usage overview
</a>
</li>
@ -215,7 +220,7 @@
<li class="md-nav__item">
<a href="../arguments/" title="Arguments" class="md-nav__link">
<a href="../arguments/" class="md-nav__link">
Arguments
</a>
</li>
@ -227,7 +232,7 @@
<li class="md-nav__item">
<a href="../notifications/" title="Notifications" class="md-nav__link">
<a href="../notifications/" class="md-nav__link">
Notifications
</a>
</li>
@ -239,7 +244,7 @@
<li class="md-nav__item">
<a href="../container-selection/" title="Container selection" class="md-nav__link">
<a href="../container-selection/" class="md-nav__link">
Container selection
</a>
</li>
@ -251,7 +256,7 @@
<li class="md-nav__item">
<a href="../private-registries/" title="Private registries" class="md-nav__link">
<a href="../private-registries/" class="md-nav__link">
Private registries
</a>
</li>
@ -263,7 +268,7 @@
<li class="md-nav__item">
<a href="../linked-containers/" title="Linked containers" class="md-nav__link">
<a href="../linked-containers/" class="md-nav__link">
Linked containers
</a>
</li>
@ -275,7 +280,7 @@
<li class="md-nav__item">
<a href="../remote-hosts/" title="Remote hosts" class="md-nav__link">
<a href="../remote-hosts/" class="md-nav__link">
Remote hosts
</a>
</li>
@ -287,7 +292,7 @@
<li class="md-nav__item">
<a href="../secure-connections/" title="Secure connections" class="md-nav__link">
<a href="../secure-connections/" class="md-nav__link">
Secure connections
</a>
</li>
@ -305,7 +310,7 @@
<input class="md-nav__toggle md-toggle" data-md-toggle="toc" type="checkbox" id="__toc">
<a href="./" title="Stop signals" class="md-nav__link md-nav__link--active">
<a href="./" class="md-nav__link md-nav__link--active">
Stop signals
</a>
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<li class="md-nav__item">
<a href="../lifecycle-hooks/" title="Lifecycle hooks" class="md-nav__link">
<a href="../lifecycle-hooks/" class="md-nav__link">
Lifecycle hooks
</a>
</li>
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<li class="md-nav__item">
<a href="../running-multiple-instances/" title="Running multiple instances" class="md-nav__link">
<a href="../running-multiple-instances/" class="md-nav__link">
Running multiple instances
</a>
</li>
@ -358,12 +363,12 @@
<p>When watchtower detects that a running container needs to be updated it will stop the container by sending it a SIGTERM signal.
If your container should be shutdown with a different signal you can communicate this to watchtower by setting a label named <em>com.centurylinklabs.watchtower.stop-signal</em> with the value of the desired signal.</p>
<p>This label can be coded directly into your image by using the <code>LABEL</code> instruction in your Dockerfile:</p>
<pre><code class="docker">LABEL com.centurylinklabs.watchtower.stop-signal=&quot;SIGHUP&quot;
</code></pre>
<div class="codehilite"><pre><span></span><code><span class="k">LABEL</span> com.centurylinklabs.watchtower.stop-signal<span class="o">=</span><span class="s2">&quot;SIGHUP&quot;</span>
</code></pre></div>
<p>Or, it can be specified as part of the <code>docker run</code> command line:</p>
<pre><code class="bash">docker run -d --label=com.centurylinklabs.watchtower.stop-signal=SIGHUP someimage
</code></pre>
<div class="codehilite"><pre><span></span><code>docker run -d --label<span class="o">=</span>com.centurylinklabs.watchtower.stop-signal<span class="o">=</span>SIGHUP someimage
</code></pre></div>
@ -382,7 +387,7 @@ If your container should be shutdown with a different signal you can communicate
<div class="md-footer-nav">
<nav class="md-footer-nav__inner md-grid" aria-label="Footer">
<a href="../secure-connections/" title="Secure connections" class="md-footer-nav__link md-footer-nav__link--prev" rel="prev">
<a href="../secure-connections/" class="md-footer-nav__link md-footer-nav__link--prev" rel="prev">
<div class="md-footer-nav__button md-icon">
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</div>
@ -397,7 +402,7 @@ If your container should be shutdown with a different signal you can communicate
</a>
<a href="../lifecycle-hooks/" title="Lifecycle hooks" class="md-footer-nav__link md-footer-nav__link--next" rel="next">
<a href="../lifecycle-hooks/" class="md-footer-nav__link md-footer-nav__link--next" rel="next">
<div class="md-footer-nav__title">
<div class="md-ellipsis">
<span class="md-footer-nav__direction">
@ -430,8 +435,8 @@ If your container should be shutdown with a different signal you can communicate
</div>
<script src="../assets/javascripts/vendor.77e55a48.min.js"></script>
<script src="../assets/javascripts/bundle.aa3f9871.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.term.missing": "Missing"}</script>
<script src="../assets/javascripts/vendor.0ac82a11.min.js"></script>
<script src="../assets/javascripts/bundle.f81dfb4d.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.placeholder": "Search", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.term.missing": "Missing"}</script>
<script>
app = initialize({