PostGIS is a spatial database extender for PostgreSQL object-relational database. It adds support for geographic objects allowing location queries to be run in SQL.
The postgis image is built using the official postgres Docker image.
Starting a postgis container.
docker run --name postgis -p "5432:5432" -d kpettijohn/postgis:9.4
Once the server is running you can connect to it directly using psql.
psql -h `docker-machine ip` -U postgres -l
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
------------------+----------+----------+------------+------------+-----------------------
postgres | postgres | UTF8 | en_US.utf8 | en_US.utf8 |
template0 | postgres | UTF8 | en_US.utf8 | en_US.utf8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | en_US.utf8 | en_US.utf8 | =c/postgres +
| | | | | postgres=CTc/postgres
template_postgis | postgres | UTF8 | en_US.utf8 | en_US.utf8 |
(4 rows)
You can also use docker exec:
docker exec postgis psql -U postgres -l
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
------------------+----------+----------+------------+------------+-----------------------
postgres | postgres | UTF8 | en_US.utf8 | en_US.utf8 |
template0 | postgres | UTF8 | en_US.utf8 | en_US.utf8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | en_US.utf8 | en_US.utf8 | =c/postgres +
| | | | | postgres=CTc/postgres
template_postgis | postgres | UTF8 | en_US.utf8 | en_US.utf8 |
(4 rows)
On run the container will create a database template called template_postgis. You can then use the template_postgis template to create your databases with the extensions postgis and postgis_topology pre-installed.
docker exec postgis psql -U postgres -c "CREATE DATABASE my_postgis_db TEMPLATE template_postgis;"
docker exec postgis psql -U postgres -d my_postgis_db -c "\dx"
List of installed extensions
Name | Version | Schema | Description
------------------+---------+------------+---------------------------------------------------------------------
plpgsql | 1.0 | pg_catalog | PL/pgSQL procedural language
postgis | 2.1.7 | public | PostGIS geometry, geography, and raster spatial types and functions
postgis_topology | 2.1.7 | topology | PostGIS topology spatial types and functions
(3 rows)
Note
If the postgis container exits on or shortly after running you may need to set a higher wait time to let the server start.
docker run --name postgis -p "5432:5432" -e "WAIT=5" -d kpettijohn/postgis:9.4