PostGIS Container Images

Maintenance scripts to generate Immutable Application Containers for all available PostgreSQL + PostGIS versions (12 to 16) to be used as operands with the CloudNativePG operator for Kubernetes.

These images are built on top of the PostGIS image (Debian version), by adding the following software:

• Barman Cloud
• PGAudit
• Postgres Failover Slots
• pgRouting

Barman Cloud is distributed by EnterpriseDB under the GNU GPL 3 License.

PGAudit is distributed under the PostgreSQL License.

Postgres Failover Slots is distributed by EnterpriseDB under the PostgreSQL License.

pgRouting is distributed under the GNU GPL 2 License, with the some Boost extensions being available under Boost Software License.

Licensing information of all the software included in the container images is in the /usr/share/doc/*/copyright* files.

Where to get them

Images are available via the GitHub Container Registry.

How to use them

The following example shows how you can easily create a new PostgreSQL 16 cluster with PostGIS 3.4 in it. All you have to do is set the imageName accordingly. Please look at the registry for a list of available images and select the one you need.

Create a YAML manifest. For example, you can put the YAML below into a file named postgis.yaml (any name is fine). (Please refer to CloudNativePG for details on the API):

apiVersion: postgresql.cnpg.io/v1
kind: Cluster
metadata:
  name: cluster-example
spec:
  instances: 3
  imageName: ghcr.io/cloudnative-pg/postgis:16-3.4
  bootstrap:
    initdb:
      postInitTemplateSQL:
        - CREATE EXTENSION postgis;
        - CREATE EXTENSION postgis_topology;
        - CREATE EXTENSION fuzzystrmatch;
        - CREATE EXTENSION postgis_tiger_geocoder;

  storage:
    size: 1Gi

Then run kubectl apply -f postgis.yaml.

When the cluster is up, run the following command to verify the version of PostGIS that is available in the system, by connecting to the app database:

$ kubectl exec -ti cluster-example-1 -- psql app
psql (16.0 (Debian 16.0-1.pgdg110+1))
Type "help" for help.

app=# SELECT * FROM pg_available_extensions WHERE name ~ '^postgis' ORDER BY 1;
           name           | default_version | installed_version |                          comment
--------------------------+-----------------+-------------------+------------------------------------------------------------
 postgis                  | 3.4.0           |                   | PostGIS geometry and geography spatial types and functions
 postgis-3                | 3.4.0           |                   | PostGIS geometry and geography spatial types and functions
 postgis_raster           | 3.4.0           |                   | PostGIS raster types and functions
 postgis_raster-3         | 3.4.0           |                   | PostGIS raster types and functions
 postgis_sfcgal           | 3.4.0           |                   | PostGIS SFCGAL functions
 postgis_sfcgal-3         | 3.4.0           |                   | PostGIS SFCGAL functions
 postgis_tiger_geocoder   | 3.4.0           |                   | PostGIS tiger geocoder and reverse geocoder
 postgis_tiger_geocoder-3 | 3.4.0           |                   | PostGIS tiger geocoder and reverse geocoder
 postgis_topology         | 3.4.0           |                   | PostGIS topology spatial types and functions
 postgis_topology-3       | 3.4.0           |                   | PostGIS topology spatial types and functions
(10 rows)

The following command shows the extensions installed in the app database, thanks to the postInitTemplateSQL section in the bootstrap which runs the selected CREATE EXTENSION commands in the template1 database, which is inherited by the application database - called app and created by default by CloudNativePG.

app=# \dx
                                        List of installed extensions
          Name          | Version |   Schema   |                        Description
------------------------+---------+------------+------------------------------------------------------------
 fuzzystrmatch          | 1.2     | public     | determine similarities and distance between strings
 plpgsql                | 1.0     | pg_catalog | PL/pgSQL procedural language
 postgis                | 3.4.0   | public     | PostGIS geometry and geography spatial types and functions
 postgis_tiger_geocoder | 3.4.0   | tiger      | PostGIS tiger geocoder and reverse geocoder
 postgis_topology       | 3.4.0   | topology   | PostGIS topology spatial types and functions
(5 rows)

You can now enjoy PostGIS!

License and copyright

This software is available under Apache License 2.0.

Copyright The CloudNativePG Contributors.

Trademarks

Postgres, PostgreSQL and the Slonik Logo are trademarks or registered trademarks of the PostgreSQL Community Association of Canada, and used with their permission.