The web server plugin is used to create a communication channel between IBMs IHS web server and a WebSphere application server.

This assumes you have already done the following:

• Installed IHS web server
• Installed the web server plugin (plugin-cfg.xml) package 
• Added IHS web server to the dmgr
• Configure applications to use one or more application servers and the IHS web server

Propagating the web server plugin means that you are sending the plugin-cfg.xml file from your WebSphere application server or dmgr to your IHS web server.

It is important to recognize that you may have two (or more) plugin-cfg.xml files. 

• global plugin-cfg.xml file that would be used by all of the IHS HTTP servers that have been added in your WebSphere admin console
• dedicated plugin-cfg xml file(s), one for each IHS HTTP server that has been added in your WebSphere admin console

The global plugin-cfg.xml file should be located at

${WAS_INSTALL_ROOT}/profiles/your_profile/config/cells/plugin-cfg.xml

dedicated plugin-cfg.xml file(s) should be located at

${WAS_INSTALL_ROOT}/profiles/your_profile/config/cells/your_cell/nodes/your_web_node/servers/your_web_server/plugin-cfg.xml

There are various ways to go about generating the global or dedicated plugin-cfg.xml files.

• global or dedicated - Generate web server plugin (plugin-cfg.xml) using GenPluginCfg
• dedicated - wsadmin and httpPluginManagement.py (this article)
• dedicated - Generate web server plugin (plugin-cfg.xml) using wsadmin
• global or dedicated - Generate web server plugin (plugin-cfg.xml) using the dmgr
• dedicated - Generate web server plugin (plugin-cfg.xml) using the PCT command

There are various ways to propagate the plugin.

• Propagate web server plugin (plugin-cfg.xml) using the dmgr
• Propagate web server plugin (plugin-cfg.xml) using GenPluginCfg
• Propagate web server plugin (plugin-cfg.xml) using wsadmin
• Propagate web server plugin (plugin-cfg.xml) using wsadmin and httpPluginManagement.py (this article)
• Propagate web server plugin (plugin-cfg.xml) using configurewebservername.sh

Here is the syntax.

${WAS_INSTALL_ROOT}/profiles/<dmgr profile>/bin/wsadmin.sh 
-f ${WAS_INSTALL_ROOT}/bin/httpPluginManagement.py 
-lang jython propagatePlugin <dmgr root directory> <cell name> <node name> <web server name>

For example.

/opt/WebSphere/AppServer/profiles/Mgr01Profile/bin/wsadmin.sh 
-f /opt/WebSphere/AppServer/bin/httpPluginManagement.py 
-lang jython 
propagatePlugin 
/opt/WebSphere/AppServer/profiles 
Cell101
Node01
WebServer01