Installing PostgreSQL and PostGIS

Install PostgreSQL

Install the package for configuring the PGDG repository:

sudo yum install http://yum.postgresql.org/9.4/redhat/rhel-7-x86_64/pgdg-centos94-9.4-1.noarch.rpm

EPEL repository will provide GDAL packages:

sudo yum install http://mirror.sfo12.us.leaseweb.net/epel/7/x86_64/e/epel-release-7-5.noarch.rpm

Install PostgreSQL, PostGIS and related libs:

sudo yum install -y postgis2_94 postgresql94 postgresql94-server postgresql94-libs postgresql94-contrib \
postgresql94-devel gdal gdal-python geos python-pip python-imaging  python-virtualenv python-devel gcc-c++  \
python-psycopg2 libxml2 libxml2-devel libxml2-python libxslt libxslt-devel libxslt-python

Init the DB:

/usr/pgsql-9.4/bin/postgresql94-setup initdb

Enable start on boot:

systemctl enable postgresql-9.4

Start postgres service by hand:

systemctl start postgresql-9.4

To restart or reload the instance, you can use the following commands:

systemctl restart postgresql-9.4
systemctl reload postgresql-9.4

Setting PostgreSQL access

Now we are going to change user access policy for local connections in file pg_hba.conf::

sudo vim /var/lib/pgsql/9.4/data/pg_hba.conf

Scroll down to the bottom of the document. We only need to edit one line. Change:

# "local" is for Unix domain socket connections only
local   all             all                                 peer

into:

# "local" is for Unix domain socket connections only
local   all             all                                     trust

Note

If your PostgreSQL database resides on a separate machine, you have to allow remote access to the databases in the pg_hba.conf for the geonode user and tell PostgreSQL to accept non local connections in your postgresql.conf file

Once the configuration file has been edited, restart PostgreSQL to make these changes effective:

systemctl restart postgresql-9.4

Create GeoNode Users Databases

Switch to postgres user:

su postgres

First create the geonode user. GeoNode is going to use this user to access the database::

createuser -P geonode

You will be prompted asked to set a password for the user. Enter geonode as password

Create geonode database with owner geonode:

createdb -O geonode geonode

And database geonode_data with owner geonode:

createdb -O geonode geonode_data

Create PostGIS extension::

psql -d geonode_data -c 'CREATE EXTENSION postgis;'

Then adjust permissions:

psql -d geonode_data -c 'GRANT ALL ON geometry_columns TO PUBLIC;'
psql -d geonode_data -c 'GRANT ALL ON spatial_ref_sys TO PUBLIC;'

And exit postgres user:

exit