create basic install guide DDS

Demographic-Data-Server/installation.md

+---
+title:  Installation Manual
+subtitle: Demographic Data Server
+author: Maxime ARIF
+date: 19/03/2019
+toolversion: 4.2.x
+function: Engineer
+version: 4.2.0
+status: For review
+reference: KER3-MAN-IHE_EUROPE-DEMOGRAPHIC_DATA_SERVER_INSTALLATION-1_00
+customer: IHE-EUROPE
+---
+# Sources and package
+
+Schematron-based Validator is a maven project. Sources are available on the INRIA Source Forge at the following URL:
+
+[*https://gforge.inria.fr/scm/viewvc.php/gazelle/Maven/DemographicDataServer/?root=gazelle*](https://gforge.inria.fr/scm/viewvc.php/gazelle/Maven/DemographicDataServer/?root=gazelle)
+
+If you'd like to checkout the sources on your system you might want to use the following svn command, provided subversion is installed on your system.
+
+```bash
+svn checkout svn://scm.gforge.inria.fr/svn/gazelle/Maven/DemographicDataServer/trunk
+```
+
+Note that the latest executable can be extracted from our nexus repository as well  at
+[*Nexus Repository Manager*](https://gazelle.ihe.net/nexus/index.html#nexus-search;quick~DemographicDataServer-ear).
+
+**Important**, if you download the **ear** from Nexus it will have a name such as `DemographicDataServer-ear-X.X.X.ear`, then be sure to rename it to `DemographicDataServer.ear` otherwise the deployment will fail.
+
+# Installation
+
+This tool is to be installed in a Jboss 7.2 application server and runs with a PosgreSQL database.
+
+If you do not have yet a Jboss installed in your environment, proceed as described in [General consideration page](https://gazelle.ihe.net/gazelle-documentation/General/jboss7.html).
+
+## Database creation
+
+Your database must have a user **gazelle**.
+1. Download the SQL scripts archive from [*Nexus Repository Manager*](https://gazelle.ihe.net/nexus/index.html#nexus-search;quick~DemographicDataServer-ear) (search for **DemographicDataServer-ear-X.X.X-sql.zip**).
+2. Unzip the archive into a folder `DemographicDataServer-sql`
+3. Connect to your database
+```bash
+psql -U gazelle
+```
+4. Excute the SQL statement to create the database.
+```sql
+CREATE DATABASE "demographic-data-server" OWNER gazelle ENCODING UTF8 ;
+```
+5. Initialize database by running :
+```bash
+psql -U gazelle demographic-data-server < DemographicDataServer-sql/init-x.x.x.sql
+```
+
+## Deployment
+To deploy Demographic Data Server:
+1. Paste the archive **DemographicDataServer.ear** in the JBoss deployment directory `${JBOSS7\_HOME}/standalone/deployments/`
+2. Display JBoss server logs, start JBoss and wait for **ear** deployment.
+3. The application can be browsed at http://localhost:8080/DDS. *Port could also be different whether you have modified the JBoss configuration*.
+4. **WARNING** : From version 4.2.0, datasources have been extracted from the **ear**. The template file can be found in /src/main/application/datasource in the source or in the file DemographicDataServer-X.X.X-datasource.zip from the nexus.
+For more informations about how to manage that externalization, please refer to [general considerations for JBoss7](https://gazelle.ihe.net/gazelle-documentation/General/jboss7.html).
+
+Datasource name : DemographicDataServerDS
+
+Database name : demographic-data-server
+
+# Update from a previous version
+
+1. Download the new **ear** and its associated update SQL script from our [*Nexus Repository Manager*](https://gazelle.ihe.net/nexus/index.html#nexus-search;quick~DemographicDataServer-ear) (search for **DemographicDataServer-X.X.X.ear** and **DemographicDataServer-X.X.X-sql.zip**). Not each version has an update sql to execute.
+
+1. Unzip the SQL archive
+
+1. Execute SQL statements. Check that the database is correctly updated.
+
+1. Deploy the new **ear**
+
+**Due to the update mechanism of the database, it is important to not skip any version of the application in an overall update. You cannot go directly from 2.0.0 to 2.3.0, you will have to repeat the process from 2.0.0 to 2.0.1, 2.0.2, 2.0.3 and so on.**
+
+# Configuration
+
+| Preference name | Description | Default value |
+|-----------------|-----------------------------------------|---------------------|
+|application_admin_email         | An email address. Administrator of the tool might received messages when errors occur in the application such as compilation failure of schematron                                        | -                    |
+|application_admin_name   |Application admin name   |-                    |
+|application_admin_title    | Application admin title     |Application Administrator|
+|application_release_notes_url |   |https://gazelle.ihe.net/jira/browse/DDS#selectedTab=com.atlassian.jira.plugin.system.project%3Achangelog-panel|
+|application_documentation         |     Link to the user guide                                   |  https://gazelle.ihe.net/gazelle-documentation/Demographic-Data-Server/user.html                  |
+|application_mode         |                   |  full    |
+|application_url         |  URL to access the application  |  https://FQDN/DDS    |
+|application_works_without_cas         |  Enable or disable the CAS authentication  |  true   |
+|DDS_domain         |    |  DDS   |
+|DDS_OID         |  Unique identifier of the tool instance  |  1.1.1.1.1.1.1.1.1.1.1.1   |
+|hl7v3_sender_timeout         |   |  15000   |
+|ip_login_admin         | Regex to authorize ip authentication if CAS authentication is disabled |  .*   |
+|issue_tracker_url         |  Link to the issue reporter (JIRA) |  https://gazelle.ihe.net/jira/browse/DDS   |
+|time_zone         |  Used to display date/time in the appropriate time zone |  Europe/Paris   |