PostGIS Container

Geospatial (PostGIS)

An example is provided that will run a PostgreSQL with PostGIS pod and service in Kubernetes and OpenShift and a container in Docker.

The container creates a default database called userdb, a default user called testuser and a default password of password.

You can view the extensions that postgres-gis has enabled by running the following command and viewing the listed PostGIS packages:

psql -h postgres-gis -U testuser userdb -c '\dx'

To validate that PostGIS is installed and which version is running, run the command:

psql -h postgres-gis -U testuser userdb -c "SELECT postgis_full_version();"

You should expect to see output similar to:

 POSTGIS="2.4.2 r16113" PGSQL="100" GEOS="3.5.0-CAPI-1.9.0 r4084" PROJ="Rel. 4.8.0, 6 March 2012" GDAL="GDAL 1.11.4, released 2016/01/25" LIBXML="2.9.1" LIBJSON="0.11" TOPOLOGY RASTER
(1 row)

As an exercise for invoking some of the basic PostGIS functionality for validation, try defining a 2D geometry point while giving inputs of longitude and latitude through this command.

psql -h postgres-gis -U testuser userdb -c "select ST_MakePoint(28.385200,-81.563900);"

You should expect to see output similar to:

(1 row)

To shutdown the instance and remove the container for each example, run the following:



Create the container as follows:

cd $CCPROOT/examples/docker/postgres-gis

Enter the following command to connect to the postgres-gis container that is mapped to your local port 12000:

psql -h localhost -U testuser -p 12000 userdb

Kubernetes and OpenShift

Running the example:

cd $CCPROOT/examples/kube/postgres-gis