#822 Installation dependencies

ontrack-docs/src/docs/asciidoc/installation-dependencies.adoc

@@ -1,3 +1,43 @@
 [[installation-dependencies]]
 === Installation dependencies
 
+Ontrack relies on the following components to be available:
+
+* Postgres - for storage of information
+* Elasticsearch - for search indexation
+
+[[installation-postgres]]
+==== Postgres
+
+Versions 9.5.+ and version 10.+ of Ontrack have been tested.
+
+By default, Ontrack will use the following
+<<configuration-properties,configuration properties>> and their default
+values to connect to Postgres:
+
+|===
+| Property | Description | Default value
+
+| spring.datasource.url | JDBC URL to the Postgres Ontrack DB | `jdbc:postgresql://localhost/ontrack`
+| spring.datasource.username | Username used to connect to the Postgres Ontrack DB | `ontrack`
+| spring.datasource.password | Password used to connect to the Postgres Ontrack DB | `ontrack`
+|===
+
+Other properties are available in link:https://docs.spring.io/spring-boot/docs/{spring-boot-version}/reference/html/appendix-application-properties.html#data-properties[Spring Boot].
+
+[[installation-elasticsearch]]
+==== Elasticsearch
+
+Version 7.5.+ has been tested.
+
+By default, Ontrack will use the following
+<<configuration-properties,configuration properties>> and their default
+values to connect to Postgres:
+
+|===
+| Property | Description | Default value
+
+| spring.elasticsearch.rest.uris | REST URI of Elasticsearch | `http://localhost:9200`
+|===
+
+Other properties are available in link:https://docs.spring.io/spring-boot/docs/{spring-boot-version}/reference/html/appendix-application-properties.html#data-properties[Spring Boot].

ontrack-docs/src/docs/asciidoc/installation.adoc

@@ -42,35 +42,4 @@ include::installation-dependencies.adoc[]
 //to see other and better ways to pass
 //those <<configuration,configuration>> parameters.
 //
-//
-//[[configuration]]
-//=== Configuration
-//
-//As a regular http://projects.spring.io/spring-boot/[Spring Boot application],
-//Ontrack can be configured using system properties and/or property files and/or
-//YAML files. See the
-//http://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#howto-properties-and-configuration[Spring Boot documentation]
-//for more details.
-//
-//NOTE: The way to provide a YAML `application.yml` configuration file or
-//command line arguments will vary
-//according to the installation (Docker, RPM, etc.). See the corresponding
-//section above for more details.
-//
-//For example, to setup the port Ontrack is running on, you can use the
-//`server.port` property. Using a YAML file:
-//
-//[source,yaml]
-//.application.yml
-//----
-//server.port=9999
-//----
-//
-//or the command line option:
-//
-//[source,bash]
-//----
-//--server.port=9999
-//----
-//
-//See <<configuration-properties>> for the list of all available properties.
+//