GOCDB/Release4/Development/MultipleGRIS

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Multiple GRIS Endpoints

Introduction

As requested in ticket https://rt.egi.eu/rt/Ticket/Display.html?id=3347. The Top-BDII needs the URL of each service endpoint's GRIS in order to retrieve information about the endpoint. The GRIS URL for each endpoint is to be stored in GOCDB.

To achieve this we propose adding support for multiple <Endpoint> elements per service endpoint (the Endpoint element in turn wraps a <URL> element). In order to identify the type of Endpoint URL we propose to add a classification element to each <Endpoint> (or a suitable GLUE2 equivalent - todo look this up).

Implementation

When adding or editing a SERVICE_ENDPOINT we propose that a user can add multiple Endpoint objects. Each Endpoint will have a classification, such as "Resource Information Service" and a URL field.

The classification distinguishes between a service’s different endpoint types and their intended purpose. For example, one Endpoint could define the service's GRIS URL, another could define the actual service URL, whilst another could define an Endpoint URL for the admin portal of that service and so on..).

The GOCDB-PI output will be extended to show multiple <Enpoint> elements (each nesting child <URL> and <classification> elements). Using this mechanism the Top-BDII can retrieve a filtered list of endpoints that have a URL with the requied (e.g. "Resource Information Service") classification.

PI Examples

Query String: https://goc.egi.eu/gocdbpi/private/?method=get_service_endpoint&Classification=Resource%20Information%20Service

<?xml version="1.0" encoding="UTF-8"?>
<results>
  <SERVICE_ENDPOINT PRIMARY_KEY="50257G0">
     <PRIMARY_KEY>50257G0</PRIMARY_KEY>
     <HOSTNAME>dgiref-globus.fzk.de</HOSTNAME>
     <GOCDB_PORTAL_URL>https://goc.egi.eu/portal/index.php?Page_Type=View_Object&object_id=77182&grid_id=0</GOCDB_PORTAL_URL>
     <HOST_OS>SL5</HOST_OS>
     <BETA>N</BETA>
     <SERVICE_TYPE>GRAM5</SERVICE_TYPE>
     <CORE></CORE>
     <IN_PRODUCTION>Y</IN_PRODUCTION>
     <NODE_MONITORED>Y</NODE_MONITORED>
     <SITENAME>DGIREF</SITENAME>
     <COUNTRY_NAME>Germany</COUNTRY_NAME>
     <COUNTRY_CODE>DE</COUNTRY_CODE>
     <ROC_NAME>NGI_DE</ROC_NAME>
     <ENDPOINT>
        <URL>ldap://ce-cms.vinca.rs:2170/mds-vo-name=AEGIS10-VINCA-CMS,o=grid</URL>
        <CLASSIFICATION>Resource Information Service</CLASSIFICATION>
     </ENDPOINT>   
</SERVICE_ENDPOINT>