A plug-in is a set of functions that are called when the GWWS server is running. SALT provides a plug-in framework as a common interface for defining and implementing plug-ins. Plug-in implementation is carried out through a dynamic library that contains the actual function code. The implementation library can be loaded dynamically during GWWS server start up. The functions are registered as the implementation of the plug-in interface.

In order for the GWWS server to load the library, the library must be specified using the <Plugin>/<Interface> element in the SALTDEPLOY file.

The following example shows a SALTDEPLOY file segment configuring multiple customized plug-in libraries to be loaded by the GWWS servers.

<Deployment ..>
  ...
  <System>
    <Certificates>
      <PrivateKey>/home/user/gwws_cert.pem</PrivateKey>
      <VerifyClient>true</VerifyClient>
      <CertPath>/home/user/trusted_cert</CertPath>
    </Certificates>
  </System>
</Deployment