Chainguard Container for postgis

PostGIS extends the capabilities of the PostgreSQL relational database by adding support for storing, indexing, and querying geospatial data

Chainguard Containers are regularly-updated, secure-by-default container images.

Download this Container Image

For those with access, this container image is available on cgr.dev:

docker pull cgr.dev/ORGANIZATION/postgis:latest

Be sure to replace the ORGANIZATION placeholder with the name used for your organization's private repository within the Chainguard Registry.

This image uses the Chainguard PostgreSQL image as a base and includes the postgis extension to support storing geospatial data.

The image's default docker-entrypoint.sh script will automatically load the extension the first time it is run. For example:

docker run --name postgis --rm -t -e POSTGRES_HOST_AUTH_METHOD=trust cgr.dev/ORGANIZATION/postgis:latest

Will show output like the following:

/usr/bin/docker-entrypoint.sh: sourcing /var/lib/postgres/initdb/10_postgis.sh
CREATE DATABASE
Loading PostGIS extensions into template_postgis
CREATE EXTENSION
CREATE EXTENSION
You are now connected to database "template_postgis" as user "postgres".
CREATE EXTENSION
CREATE EXTENSION
Loading PostGIS extensions into postgres
CREATE EXTENSION
CREATE EXTENSION
You are now connected to database "postgres" as user "postgres".
CREATE EXTENSION
CREATE EXTENSION

This output indicates that the extension has been installed into the running PostgreSQL instance.

Verify the extension is installed by running the following:

 docker exec -it postgis psql -U postgres -c '\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                | 3.5.0   | public     | PostGIS geometry and geography spatial types and functions
 postgis_tiger_geocoder | 3.5.0   | tiger      | PostGIS tiger geocoder and reverse geocoder
 postgis_topology       | 3.5.0   | topology   | PostGIS topology spatial types and functions
(5 rows)

Note the installed postgis, postgis_tiger_geocoder, and postgis_topology extensions.

Refer to the Getting Started with the PostgreSQL Chainguard Image guide for more information on how to use the base PostgreSQL image that this is built on.

For PostGIS specific guides, refer to the official PostGIS Getting Started pages.

What are Chainguard Containers?

Chainguard's free tier of Starter container images are built with Wolfi, our minimal Linux undistro.

All other Chainguard Containers are built with Chainguard OS, Chainguard's minimal Linux operating system designed to produce container images that meet the requirements of a more secure software supply chain.

The main features of Chainguard Containers include:

• Minimal design, without unnecessary software bloat
• Daily builds to ensure container images are up-to-date with available security patches
• High quality build-time SBOMs attesting to the provenance of all artifacts within the image
• Verifiable signatures provided by Sigstore
• Reproducible builds with Cosign and apko (read more about reproducibility)

For cases where you need container images with shells and package managers to build or debug, most Chainguard Containers come paired with a development, or -dev, variant.

In all other cases, including Chainguard Containers tagged as :latest or with a specific version number, the container images include only an open-source application and its runtime dependencies. These minimal container images typically do not contain a shell or package manager.

Although the -dev container image variants have similar security features as their more minimal versions, they include additional software that is typically not necessary in production environments. We recommend using multi-stage builds to copy artifacts from the -dev variant into a more minimal production image.

Need additional packages?

To improve security, Chainguard Containers include only essential dependencies. Need more packages? Chainguard customers can use Custom Assembly to add packages, either through the Console, chainctl, or API.

To use Custom Assembly in the Chainguard Console: navigate to the image you'd like to customize in your Organization's list of images, and click on the Customize image button at the top of the page.

Learn More

Refer to our Chainguard Containers documentation on Chainguard Academy. Chainguard also offers VMs and Libraries — contact us for access.

Trademarks

This software listing is packaged by Chainguard. The trademarks set forth in this offering are owned by their respective companies, and use of them does not imply any affiliation, sponsorship, or endorsement by such companies.