Update postgres.md

Added additional setup information for PostgreSQL.

docs/getting-started/database-setup/postgres.md

@@ -10,35 +10,38 @@ nav_order: 1
 
 [PostgreSQL](https://www.postgresql.org/) is a powerful, open source object-relational database system with over 30 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.
 
-## Using Postgres as an alternative to MSSQL
-1. Open `src/.env.`
-2. Replace the `OWSDBConnectionString` with `Host=host.docker.internal;Port=5432;Database=openworldserver;Username=postgres;Password=yourStrong(!)Password;`
-3. Replace the value in **OWSDBBackend** with **postgres**
+## PostgreSQL is the now the default database technology for OWS
+No configuration changes are required to use PostgreSQL
 
 ## Update database version
+All database updates are applied by default now. If you need to update an existing database, the update scripts are in the ./Databases/Postgres/UpdateScripts folder.
 
-1. Open PGAdmin3/4 and connect to localhost using the following credentials:
-
- <dl>
-  <dt>Username</dt>
-  <dd>postgres</dd>
-  <dt>Password</dt>
-  <dd>yourStrong(!)Password</dd>
- </dl>
-
-2. Run the following SQL statement against the Open World Server database.
-
- ```sql
- SELECT * FROM OWSVersion
- ```
-
-3. Compare the **OWSDBVersion** returned with the SQL update scripts in the `Databases\MSSQL\UpdateScriptsFolder` to see which scripts to run on your database.
-
-4. The update scripts have **From[SomeVersion]To[SomeVersion]** in the name. Run them in order starting with the **From[SomeVersion]** that matches your **OWSDBVersion** from the previous step. To run the script open the file, copy the contents from it and run it as a SQL statement against the Open World Server database like you did in step 2. If you are not familiar with SQL please refer to the [SQL Tutorial](https://www.w3schools.com/sql/) to learn more about it.
+## Warning! If you already have PostgreSQL installed on your development PC running on port 5432, then OWS 2 will not work 
+Please adjust the OWS 2 configuration to run PostgreSQL on an alternate port. Here is an example of what to change to switch OWS copy of PostgreSQL to port 15432:
+1. Open the .env file and go to the Postgres connection string and edit it like this:
+```
+# Postgres
+DATABASE_CONNECTION_STRING="Host=host.docker.internal;Port=15432;Database=openworldserver;Username=postgres;Password=${DATABASE_PASSWORD};"
+```
+2. Open databases.yml and edit it like this:
+```
+### PostgreSQL Database
+ postgres:
+ build:
+ context: postgres/
+ environment:
+ - POSTGRES_PASSWORD=${DATABASE_PASSWORD}
+ ports:
+ - "15432:5432"
+ volumes:
+ - database:/var/lib/postgresql/data
+ container_name: PostgreSQL
+```
+Notice that we ONLY change the first number to 15432 and not the second number. The second number has to stay 5432.
 
 ## Create API Key
 
-1. Open PGAdmin3/4 and connect to localhost using the following credentials:
+1. Open PGAdmin3/4 or dBeaver and connect to localhost using the following credentials:
 
  <dl>
   <dt>Username</dt>
@@ -75,5 +78,7 @@ nav_order: 1
  ```sql
  SELECT CustomerGUID FROM Customers LIMIT 1;
  ```
+ The above query only works if this is a new OWS 2 installation. A common issue during setup is when you have more than one API key (CustomerGUID).
+
 
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+[Next: OWS Starter Project](starter-project){: .btn .btn-outline }