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EPN2020-RI

EUROPLANET2020 Research Infrastructure 

H2020-INFRAIA-2014-2015 

Grant agreement no: 654208

Document: VESPA-

Date: 

Responsible WP Leader: OBSPARIS / Stéphane Erard

Table of Contents

1. Introduction

This document presents the configuration procedure of the VESPA service installed during the first part of the tutorial. We propose here to set up the Registry configuration (Section 2), as well as a test TAP service (Section 3). 

In order to prepare the installation, here is a table to be filled with the parameters of you installation:

creator_name (2)

logo_url (3)

authority_creationDate (4)

2014-06-03T08:59:09.697573Z

authority_title

authority_shortname

authority_description

authority_url

organization_title

organization_description

organization_url

(1) This ivo-id is that of your naming authority. If your institution is not registered you should put ivo://<<authority_name>>/org (see Tutorial Part 1).
(2) May be different from the maintainer_email. Contact Name is the Data Center contact person, whereas the Creator Name is the contact for this specific server.
(3) The logo must have the following maximum dimensions: width = 120px and height = 60px.  
(4) This date must be formatted in ISO-8901, see the example caution on format. 

2. DaCHS Registry Configuration

The Registry is the Information System of the Virtual Observatory (the yellow pages where all the services are registered). We describe a way to register your "authority ID" (description of the authority managing your resources) and the services provided by DaCHS. This operation shall be done only once. New services will be registered automatically.

First you need to create an identifier for your naming authority ID (ivo://authority_name)

Then open the configuration file:

sudo pico /var/gavo/etc/defaultmeta.txt

...and edit it with the following lines (see Tutorial Part 1 for some keywords):

publisher: <<authority_name>>
publisherID: <<authority-ivoid>>
contact.name: <<contact_name>> 
contact.address: <<contact_address>>
contact.email: <<contact_email>>
contact.telephone: <<contact_telephone>>
creator.name: <<creator_name>>
creator.logo: <<logo_url>>
authority.creationDate: <<authority_creationDate>>
authority.title: <<authority_title>>
authority.shortName: <<authority_shortname>>
authority.managingOrg: <<my_datacenter-ivoid>>
authority.referenceURL: <<authority_url>>
authority.description: <<authority_description>>
organization.title: <<organization_title>>
organization.referenceURL: <<organization_url>>
organization.description: <<organization_description>>
site.description:<<description of your site (data centre)>>

Then you have to update the userconfig.rd file in the same directory. This file does not exist yet on a fresh installation, so you have to create it. You first need to switch to the root user, and then create the file: 

cd /var/gavo/etc/
su #root password is asked
gavo admin dumpDF //userconfig > userconfig.rd
exit

Then open the registry-interfacerecords section of the userconfig.rd file for editing

sudo pico userconfig.rd

And in the file, remove the {UNCONFIGURED} text, so that the content is:

[...]
<!-- ================================ Registry Interface ============ -->
        <STREAM id="registry-interfacerecords">
                <doc>
                        These are services and registry records for the registry interface
                        of this service.
                        Even if together with defaultmeta, this will just work, keep
                        these elements in your etc/userconfig.rd.
                        The metaString macros in here generally point into defaultmeta.
                        Replace them with whatever actual text applies to your site;  we
                        will work to do away with defaultmeta.txt.
                </doc>
                <resRec id="authority"> <!-- ivo id of the authority is overridden in
                        nonservice.NonServiceResource -->
                        <meta>
                                creationDate: \\metaString{authority.creationDate}              
                                title: \\metaString{authority.title}              
                                shortName: \\metaString{authority.shortName}          
                                subject: Authority
                                managingOrg: \\metaString{authority.managingOrg}             
                                referenceURL: \\metaString{authority.referenceURL}                 
                                identifier: ivo://\getConfig{ivoa}{authority}
                                sets: ivo_managed
                        </meta>
                        <meta name="description">
                                \\metaString{authority.description}
                        </meta>
                </resRec>
                <resRec id="manager"> <!-- the organisation running this registry -->
                        <meta>
                                resType: organization
                                creationDate: \\metaString{authority.creationDate}              
                                title: \\metaString{organization.title}              
                                subject: Organization
                                referenceURL: \\metaString{organization.referenceURL}            
                                identifier: ivo://\getConfig{ivoa}{authority}/org
                                sets: ivo_managed
                        </meta>
                        <meta name="description">
                                \\metaString{organization.description}
                        </meta>
                </resRec>
[...]

In case your organisation is already registered, you need to remove the <resRec id="manager"> ... </resRec> element.

Once this is done, we can publish your registry interface, by issuing the following command:

gavo pub //services

This will declare your publishing registry, you can verify the content using  http://<<dachs-server-address>>/oai.xml

Read http://docs.g-vo.org/DaCHS/opguide.html#defining-basic-metadata for more details

3. Registering the DaCHS server in Registry of Registry

Go there: http://rofr.ivoa.net/regvalidate/

Enter the URL: http://<<dachs-server-address>>/oai.xml

First step on registry validation result on failed tests have to be None Found

Then a "Step 2: Register your Registry" will be proposed on the web interface with a button Register

Once your registry is inside the list of publishing registries, you have to wait at least one day for the information to be harvested and to see your service available in clients such as TOPCAT

4. Publish your TAP service data collections

In the IVOA registry the right way to declare TAP is to have a TAP service registered and all the data collections registered separately but liked to this TAP service. DaCHS will make the job for you.

To publish the TAP service

gavo pub //tap

The service TAP will be visible from http://<<dachs-server-address>>/oai.xml

Each of your Vespa service need to be published to be visible in Topcat, Aladin, Taphandle ....
For each service you may have in the q.rd file

<data id="collection" auto="false">
	<make table="epn_core"/>
	<publish/>
</data>

from the directory where the q.rd is use the following command

gavo pub q

each collection will appear at http://<<dachs-server-address>>/oai.xml

5. Unregistering a service

In case you build a test service and you register it by mistake, we describe how to set this service as inactive so it will no longer be visible in the registry.

In the q.rd file defining your service you have

<data id="collection" auto="false">
	<make table="epn_core"/>
	<publish/>
</data>

remove the line

	<publish/>

make under user dachsroot the command  

gavo pub q.rd

to be sure that the declaration have been removed go to

http://<<dachs-server-address>>/oai.xml/verb=ListIdentifiers&metadataPrefix=ivo_vor

Your collection will appear in strike characters. 

6. Assessing your dataset

Depending on your dataset (just a series of files, number for data processing levels, presence of metadata, format of data, existing relational database...) various processing may be required. In order to prepare the sharing with EPN-TAP, here is a check list of what you need:

• Public access to the data files you want to share: either on your server, or on a remote server with a publicly accessible URL (e.g., at NASA/PDS or ESA/PSA).
• Metadata (relevant for EPNcore) for each file
• Preview image for each file

Select a suitable data format if the current format is recommended by VESPA.

To be Continued...