Merge pull request #1034 from onaio/update-postgres-in-docker-install…

…ation-docs

Update Postgres install docs to use docker-compose.

docs/install.rst

@@ -26,44 +26,26 @@ Replace username and db name accordingly.
 
 In Docker
 ~~~~~~~~~
+To run Postgres 9.6.3 with postgis 2.3.0 in Docker:
 
-These are just examples and you shouldn't run them as they are in production:
-To run this use the Dockerfile in
-`onaio/docker-builds <https://github.com/onaio/docker-builds/tree/master/postgres>`_
-for postgres 9.6.0 with postgis 2.3.0 and run:
+We shall use the Ona Docker builds `onaio/docker-builds <https://github.com/onaio/docker-builds>`
 
 .. code-block:: sh
 
-    mkdir ~/docker-images/postgres-9.6/
-    cd ~/docker-images/postgres-9.6
-    docker build -t postgres:9.6.1 .
+    git clone [email protected]:onaio/docker-builds.git
+    cd docker-builds/postgresql
+    mkdir ~/.postgresql/onadata/data
+    POSTGRES_PASSWORD=<password> docker-compose up -d
 
-.. note::
-
-  This will be a persisted using ~/.postgresql/data
-
-.. code-block:: sh
-
-    mkdir ~/.postgresql/data
-    docker run -e POSTGRES_PASSWORD=pass -p 5432:5432 --volume ~/.postgresql/data:/var/lib/postgresql/data --name onadata -d postgres:9.6.1
-
-Connect using psql with:
+Connect to postgres using psql with:
 
 .. code-block:: sh
 
     psql -h localhost -p 5432 -U postgres
 
-In psql:
-
-.. code-block:: sql
-    CREATE USER <username> WITH PASSWORD '<password>' SUPERUSER CREATEDB LOGIN;
-    CREATE DATABASE <database-name> WITH ENCODING='UTF8' LC_CTYPE='en_US.UTF-8' LC_COLLATE='en_US.UTF-8' OWNER=<username> TEMPLATE=template0;
-    CONNECT <database-name>;
-    CREATE EXTENSION IF NOT EXISTS postgis;
-    CREATE EXTENSION IF NOT EXISTS postgis_topology;
+From now onwards start the onadata database with ``docker start onadata-postgres``
 
-From now onwards start your DB with ``docker start onadata`` provided you passed
-the name "onadata" to Docker's ``--name`` option.
+You can then initialize the users and database as explained above.
 
 Get the code
 ------------