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| <title>Hot Deployment</title><link rel="stylesheet" type="text/css" href="css/docbook.css"><meta name="generator" content="DocBook XSL-NS Stylesheets V1.76.1"><meta name="keywords" content="jetty, servlet, servlet-api, cometd, http, websocket, eclipse, maven, java, server, software"><link rel="home" href="index.html" title="Jetty : The Definitive Reference"><link rel="up" href="configuring-deployment.html" title="Chapter 4. Deploying to Jetty"><link rel="prev" href="static-content-deployment.html" title="Configuring Static Content Deployment"><link rel="next" href="deployment-architecture.html" title="Deployment Architecture"><link xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times" rel="shortcut icon" href="images/favicon.ico"><script type="text/javascript" src="js/shCore.js"></script><script type="text/javascript" src="js/shBrushJava.js"></script><script type="text/javascript" src="js/shBrushXml.js"></script><script type="text/javascript" src="js/shBrushBash.js"></script><script type="text/javascript" src="js/shBrushJScript.js"></script><script type="text/javascript" src="js/shBrushSql.js"></script><script type="text/javascript" src="js/shBrushProperties.js"></script><script type="text/javascript" src="js/shBrushPlain.js"></script><link type="text/css" rel="stylesheet" href="css/shCore.css"><link type="text/css" rel="stylesheet" href="css/shThemeEclipse.css"><link type="text/css" rel="stylesheet" href="css/font-awesome.min.css"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><table xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times"><tr><td style="width: 25%"><a href="http://www.eclipse.org/jetty"><img src="images/jetty-header-logo.png" alt="Jetty Logo"></a><br><span style="font-size: small"> |
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| </script><gcse:search></gcse:search></td></tr></table><div xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Hot Deployment</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="static-content-deployment.html"><i class="icon-chevron-left"></i> Previous</a> </td><th width="60%" align="center">Chapter 4. Deploying to Jetty<br><a accesskey="p" href="index.html"><i class="icon-home"></i> Home</a></th><td width="20%" align="right"> <a accesskey="n" href="deployment-architecture.html">Next <i class="icon-chevron-right"></i></a></td></tr></table><hr></div><div xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times" class="jetty-callout"><h5 class="callout"><a href="http://www.webtide.com/">Contact the core Jetty developers at |
| <span class="website">www.webtide.com</span></a></h5><p> |
| private support for your internal/customer projects ... custom extensions and distributions ... versioned snapshots for indefinite support ... |
| scalability guidance for your apps and Ajax/Comet projects ... development services from 1 day to full product delivery |
| </p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="hot-deployment"></a>Hot Deployment</h2></div></div></div><p>Jetty lets you deploy an arbitrary context or web application by |
| monitoring a directory for changes. If you add a web application or a |
| context descriptor to the directory, Jetty's DeploymentManager (DM) deploys |
| a new context. If you touch or update a context descriptor, the DM stops, |
| reconfigures, and redeploys its context. If you remove a context, the DM |
| stops it and removes it from the server.</p><p>To control this behavior, you'll want to configure some WebAppProvider |
| properties.</p><div class="variablelist"><dl><dt><span class="term">monitoredDirName</span></dt><dd><p>The directory to scan for possible deployable Web Applications |
| (or Deployment Descriptor XML files)</p></dd><dt><span class="term">scanInterval</span></dt><dd><p>Number of seconds between scans of the provided |
| <code class="literal">monitoredDirName</code>.</p><p>A value of <code class="literal">0</code> disables the continuous hot |
| deployment scan, Web Applications will be deployed on startup |
| only.</p></dd></dl></div><p>The default location for this configuration is in the |
| <code class="filename">${jetty.home}/etc/jetty-deploy.xml</code> file.</p><div class="informalexample"><script type="syntaxhighlighter" class="brush: xml;toolbar: false"> |
| <![CDATA[<?xml version="1.0"?> |
| <!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure_9_0.dtd"> |
| <Configure id="Server" class="org.eclipse.jetty.server.Server"> |
| |
| <Call name="addBean"> |
| <Arg> |
| <New id="DeploymentManager" class="org.eclipse.jetty.deploy.DeploymentManager"> |
| <Set name="contexts"> |
| <Ref refid="Contexts" /> |
| </Set> |
| <Call name="setContextAttribute"> |
| <Arg>org.eclipse.jetty.server.webapp.ContainerIncludeJarPattern</Arg> |
| <Arg>.*/servlet-api-[^/]*\.jar$</Arg> |
| </Call> |
| |
| <Call id="webappprovider" name="addAppProvider"> |
| <Arg> |
| <New class="org.eclipse.jetty.deploy.providers.WebAppProvider"> |
| <Set name="monitoredDirName"><Property name="jetty.home" default="." />/webapps</Set> |
| <Set name="defaultsDescriptor"><Property name="jetty.home" default="." />/etc/webdefault.xml</Set> |
| <Set name="scanInterval">1</Set> |
| <Set name="extractWars">true</Set> |
| </New> |
| </Arg> |
| </Call> |
| </New> |
| </Arg> |
| </Call> |
| </Configure> ]]> |
| </script></div><p>See <a class="xref" href="deployment-architecture.html#default-web-app-provider" title="Understanding the Default WebAppProvider">Understanding the Default WebAppProvider</a> for more configuration |
| details.</p><p>See also <a class="xref" href="deployment-architecture.html" title="Deployment Architecture">Deployment Architecture</a> for detailed |
| conceptual information.</p></div><script type="text/javascript"> |
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| </script><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="static-content-deployment.html"><i class="icon-chevron-left"></i> Previous</a> </td><td width="20%" align="center"><a accesskey="u" href="configuring-deployment.html"><i class="icon-chevron-up"></i> Top</a></td><td width="40%" align="right"> <a accesskey="n" href="deployment-architecture.html">Next <i class="icon-chevron-right"></i></a></td></tr><tr><td width="40%" align="left" valign="top">Configuring Static Content Deployment </td><td width="20%" align="center"><a accesskey="h" href="index.html"><i class="icon-home"></i> Home</a></td><td width="40%" align="right" valign="top"> Deployment Architecture</td></tr></table></div><p xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times"><div class="jetty-callout"> |
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