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Host Manager App -- Text Interface

Table of Contents

Introduction

The Tomcat Host Manager application enables you to create, delete, and otherwise manage virtual hosts within Tomcat. This how-to guide is best accompanied by the following pieces of documentation:

The Tomcat Host Manager application is a part of Tomcat installation, by default available using the following context: /host-manager. You can use the host manager in the following ways:

  • Utilizing the graphical user interface, accessible at: {server}:{port}/host-manager/html.
  • Utilizing a set of minimal HTTP requests suitable for scripting. You can access this mode at: {server}:{port}/host-manager/text.

Both ways enable you to add, remove, start, and stop virtual hosts. Changes may be presisted by using the persist command. This document focuses on the text interface. For further information about the graphical interface, see Host Manager App -- HTML Interface.

Configuring Manager Application Access

The description below uses $CATALINA_HOME to refer the base Tomcat directory. It is the directory in which you installed Tomcat, for example C:\tomcat8, or /usr/share/tomcat8.

The Host Manager application requires a user with one of the following roles:

  • admin-gui - use this role for the graphical web interface.
  • admin-script - use this role for the scripting web interface.

To enable access to the text interface of the Host Manager application, either grant your Tomcat user the appropriate role, or create a new one with the correct role. For example, open ${CATALINA_BASE}/conf/tomcat-users.xml澳门新葡新京官方网站 and enter the following:

<user username="test" password="chang3m3N#w" roles="admin-script"/>

No further settings is needed. When you now access {server}:{port}/host-manager/text/${COMMAND},you are able to log in with the created credentials. For example:

$ curl -u ${USERNAME}:${PASSWORD} http://localhost:8080/host-manager/text/list
OK - Listed hosts
localhost:

Note that in case you retrieve your users using the DataSourceRealm, JDBCRealm, or JNDIRealm澳门新葡新京官方网站 mechanism, add the appropriate role in the database or the directory server respectively.

List of Commands

The following commands are supported:

  • list
  • add
  • remove
  • start
  • stop
  • persist

In the following subsections, the username and password is assumed to be test:test. For your environment, use credentials created in the previous sections.

List command

Use the list command to see the available virtual hosts on your Tomcat instance.

Example command:

curl -u test:test http://localhost:8080/host-manager/text/list

Example response:

OK - Listed hosts
localhost:

Add command

Use the add command to add a new virtual host. Parameters used for the add command:

  • String name: Name of the virtual host. REQUIRED
  • String aliases: Aliases for your virtual host.
  • String appBase: Base path for the application that will be served by this virtual host. Provide relative or absolute path.
  • Boolean manager: If true, the Manager app is added to the virtual host. You can access it with the /manager context.
  • Boolean autoDeploy: If true, Tomcat automatically redeploys applications placed in the appBase directory.
  • Boolean deployOnStartup: If true, Tomcat automatically deploys applications placed in the appBase directory on startup.
  • Boolean deployXML: If true, the /META-INF/context.xml file is read and used by Tomcat.
  • Boolean copyXML: If true, Tomcat copies /META-INF/context.xml file and uses the original copy regardless of updates to the application's /META-INF/context.xml file.

Example command:

curl -u test:test http://localhost:8080/host-manager/text/add?name=www.awesomeserver.com&aliases=awesomeserver.com&appBase/mnt/appDir&deployOnStartup=true

Example response:

add: Adding host [www.awesomeserver.com]

Remove command

Use the remove command to remove a virtual host. Parameters used for the remove command:

  • String name: Name of the virtual host to be removed. REQUIRED

Example command:

curl -u test:test http://localhost:8080/host-manager/text/remove?name=www.awesomeserver.com

Example response:

remove: Removing host [www.awesomeserver.com]

Start command

Use the start command to start a virtual host. Parameters used for the start command:

  • String name: Name of the virtual host to be started. REQUIRED

Example command:

curl -u test:test http://localhost:8080/host-manager/text/start?name=www.awesomeserver.com

Example response:

OK - Host www.awesomeserver.com started

Stop command

Use the stop command to stop a virtual host. Parameters used for the stop澳门新葡新京官方网站 command:

  • String name: Name of the virtual host to be stopped. REQUIRED

Example command:

curl -u test:test http://localhost:8080/host-manager/text/stop?name=www.awesomeserver.com

Example response:

OK - Host www.awesomeserver.com stopped

Persist command

Use the persist command to persist a virtual host into server.xml. Parameters used for the persist command:

  • String name: Name of the virtual host to be persist. REQUIRED

This functionality is disabled by default. To enable this option, you must configure the StoreConfigLifecycleListener listener first. To do so, add the following listener to your server.xml:

<Listener className="org.apache.catalina.storeconfig.StoreConfigLifecycleListener"/>

Example command:

curl -u test:test http://localhost:8080/host-manager/text/persist?name=www.awesomeserver.com

Example response:

OK - Configuration persisted

Example manual entry:

<Host appBase="www.awesomeserver.com" name="www.awesomeserver.com" deployXML="false" unpackWARs="false">
</Host>

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