http://2016.foss4g.org/talks.html#146 Docker is a growing open-source platform for building and shipping applications as cloud services in so called containers. But containers can be more than that! Following the idea of DevOps, Dockerfiles are a complete scripted definition of an application with all it's dependencies, which can be build and published as ready to use images. As each container is only running "one thing" (e.g. one application, one database, a worker instance), multiple containers can be configured with the help of docker-compose. More and more geospatial open source projects or third parties provide Dockerfiles. In this talk, we try to give an overview of the existing Docker images and docker-compose configurations for FOSS4G projects. We report on test runs that we conducted with them, informing about the evaluation results, target purposes, licenses, commonly used base images, and more. We will also give a short introduction into Docker and present the purposes that Docker images can be used for, such as easy evaluation for new users, education, testing, or common development environments. This talk integrates and summarizes information from previous talks at FOSS4G and FOSSGIS conferences, so I'd like to thank Sophia Parafina, Jonathan Meyer, and Björn Schilberg for their contributions.

1. An overview of Docker
images for geospatial
applications
FOSS4G conference 2016, Bonn, Germany
Daniel Nüst
Institute for Geoinformatics
University of Münster

2. Talk abstract
http://2016.foss4g.org/talks.html#146
Docker is a growing open-source platform for building and shipping applications as cloud services in so
called containers. But containers can be more than that! Following the idea of DevOps, Dockerfiles are a
complete scripted definition of an application with all it's dependencies, which can be build and published
as ready to use images. As each container is only running "one thing" (e.g. one application, one database,
a worker instance), multiple containers can be configured with the help of docker-compose.
More and more geospatial open source projects or third parties provide Dockerfiles. In this talk, we try to
give an overview of the existing Docker images and docker-compose configurations for FOSS4G projects.
We report on test runs that we conducted with them, informing about the evaluation results, target
purposes, licenses, commonly used base images, and more. We will also give a short introduction into
Docker and present the purposes that Docker images can be used for, such as easy evaluation for new
users, education, testing, or common development environments.
This talk integrates and summarizes information from previous talks at FOSS4G and FOSSGIS
conferences, so I'd like to thank Sophia Parafina, Jonathan Meyer, and Björn Schilberg for their
contributions.

3. Agenda
What is Docker? Why?
What can it be used for?
Overview of geo-related containers
Select containers Live Demo

4. Why containerization?
Why Docker?

5. Motivation
http://www.slideshare.net/gmccance/cern-data-centre-evolution
Pets vs. Cattle

6. Motivation
https://www.docker.com/use-cases

7. Science
Reproducibility is at the of

8. Slide by Docker inventor & Docker, Inc. CTO Solomon Hykes, DockerCon 2014

9. https://www.docker.com/what-docker
https://en.wikipedia.org/wiki/Operating-system-level_virtualization
https://youtu.be/ki8CZkutoxQ
Containerization using
kernel features
namespaces
libcontainer, LXC
cgroups
resources
Houses vs. Appartments

10. Docker basics
Dockerfile
…
…
Docker
Image
Docker
Container
build run
pause
stop/kill
start
logs
cp
exec
rm
stats
docker-compose
configuration
…
…
use n
Docker
Container
Docker
Container
Docker
Container
up
down
Docker CLI
Docker Engine
Docker Registry
run

11. “Official Docker registry”: Docker Hub

12. https://hub.docker.com/u/osgeo/
$ docker run -it --rm osgeo/proj.4
root@f1141552cee9:/# proj
Rel. 4.9.3, dd Month yyyy
usage: proj [ -beEfiIlormsStTvVwW [args] ]
[ +opts[=arg] ] [ files ]
root@f1141552cee9:/#

13. Process and evaluation
Google
Search Docker Hub
Search FOSS4G talks
OSGeo project list
Criteria and data points
Goals / target users / applications (e.g. testing, dev
env,
new users, demos, …)
Maintainer (3rd party, original devs?)
License
Base image

14. “geo” on Docker Hub

15. “gis” on Docker Hub

16. Degree
tfr42/deegree
tfr42/teamengine
mdillon/postgis
FROM tomcat:8-jre7
MAINTAINER deegree TMC <tmc@deegree.org>
# set deegree version
ENV DEEGREE_VERSION 3.3.18
# download deegree
RUN wget
http://repo.deegree.org/content/repositories/public
/org/deegree/deegree-
webservices/${DEEGREE_VERSION}/deegree-webservices-
${DEEGREE_VERSION}.war -O
/usr/local/tomcat/webapps/deegree-webservices.war
# run tomcat
CMD ["catalina.sh", "run"]

17. gdal - Live Demo
docker run --rm geodata/gdal
Play around with gdal, easily use different versions (of library combinations)
https://github.com/geo-data/gdal-docker
Use it as a “binary executable” in scripts, e.g.
https://gist.github.com/spara/73972116fe751bf374e29618a10d5bed
https://hub.docker.com/r/spara/gdal_ef/

18. QGIS - Live Demo
xhost +
# --rm will remove the container as soon as it ends
docker run --rm --name="qgis-desktop-2.14ltr"
-i -t
-v ${HOME}:/home/${USER}
-v /tmp/.X11-unix:/tmp/.X11-unix
-e DISPLAY=unix$DISPLAY
kartoza/qgis-desktop:2.14
xhost -
docker run --name "qgis-server-webclient" -p 8081:80 -
d -t opengisch/qgis-server-webclient

19. PostGIS

20. PostGIS - Live Demo
docker run --name some-postgis -e
POSTGRES_PASSWORD=mysecretpassword -d
mdillon/postgis
docker run -it --link some-postgis:postgres -
-rm postgres
sh -c 'exec psql -h
"$POSTGRES_PORT_5432_TCP_ADDR" -p
"$POSTGRES_PORT_5432_TCP_PORT" -U postgres'
# list
# q

21. tileserver-mapnik - Live Demo
wget -c https://osm2vectortiles-
downloads.os.zhdk.cloud.switch.ch/v1.0/extracts/zurich.mbtile
s
git clone https://github.com/mapbox/mapbox-studio-osm-
bright.tm2.git
docker run -v $(pwd):/data -p 8085:80
klokantech/tileserver-mapnik

22. 52°North WPS - Live Demo
docker run -p 80:8080 52n-wps-base
http://localhost/wps

23. pycsw Live Demo
docker run --rm -it -p 8000:8000
geocontainers/pycsw
http://localhost:8000/

24. GeoNode Live Demo
docker run -p 8000:8000 -p 8080:8080
openmarble/arch-geonode
http://localhost:8080/

25. GeoMOOSE Live Demo
docker run -p 80:80 --rm=true --name
geomoose_demo geomoose
http://localhost/geomoose/geomoose_dev.html
Great example: Instructions for demo, testing,
and development usage of the image

26. Osmosis Live Demo
docker run --rm -t -i -v $(pwd)/tmp:/data
farberg/openstreetmap-osmosis-docker --read-
pbf /data/monaco.osm.pbf --write-xml
/data/monaco.xml
docker run --rm -t -i -v $(pwd)/tmp:/data
ferimer/osmosis:20160525 --read-pbf
/data/monaco.osm.pbf --write-xml
/data/monaco2.xml
diff tmp/monaco2.xml tmp/monaco.xml

27. PDAL
http://www.pdal.io/workshop/docker.html
PDAL stands on the shoulders of giants. It uses
GDAL, GEOS, and many other dependencies.
Because of this, it is very challenging to build
it yourself. We could easily burn an entire
workshop learning the esoteric build miseries of
PDAL and all of its dependencies. Fortunately,
Docker will allow us to use a fully-featured known
configuration to run our examples and
exercises without having to suffer so much.
docker run -t pdal/pdal pdal --help

28. CartoDB
docker run -d -p 3000:3000 -p 8080:8080 -p
8181:8181 --name carto sverhoeven/cartodb
sudo sh -c 'echo 127.0.1.1 cartodb.localhost
>> /etc/hosts'
docker run -p 80:80 --link
carto:cartodb.localhost -d
spawnthink/cartodb-nginx
http://cartodb.localhost

29. Join on the OSGeo wiki
https://wiki.osgeo.org/wiki/DockerImages
https://wiki.osgeo.org/wiki/DockerImagesMeta

30. Core arguments for FOSS4G community
(all the Docker advantages… write once, biz ops, cloud, etc.)
Lower entrance barrier for users AND devs
(e.g. sandboxed stack per developer, J. Meyer)
Easier transition from testing to production

31. Tasks & Challenges for the community
Put your project on Docker Hub as an automated build and add a license
Use base images, extend them to provide useful variants
Collaborate with existing images!
Make services and apps configurable using ENVironment parameters and files
Projects and their developers must build up knowledge
Communicate intention of Dockerfile because there is not one Dockerfile fitting
all problems
UbuntuGIS easy, but huge images (try alpine!)
Packaging UI / Desktop applications still in flow

32. One more thing...
http://geocontainers.org

33. Geocontainers is a RIP-OFF! http://biodocker.org/

34. https://hub.docker.com/search/?isAutomated=0&isOfficial=0&page=1&pullCount=0&q=foss4g&starCount=0 as of Aug 23 2016

35. Thanks for your attention!
What are your questions?
http://o2r.info @o2r_project
daniel.nuest@wwu.de
Thanks to…
Björn Schilberg (Intevation) - https://www.fossgis.de/konferenz/2015/programm/events/847.de.html and
https://www.youtube.com/watch?v=CeI8S_tnCZ0
Jonathan Meyer - https://2016.foss4g-na.org/session/image-mosaics-automation
Sophia Parafina - https://2016.foss4g-na.org/session/spatial-data-processing-docker