Using Docker for research and production in the Sensor Web / OGC SWE domain with examples from 52°North Sensor Observation Service and Helgoland.

1. Containers for Sensor Web Services,
Applications and Research
Aug 30, 2016 @ Geospatial Sensor Webs Conference, Münster, Germany
Daniel Nüst, University of Münster, daniel.nuest@uni-muenster.de

2. Agenda
Motivation Containerization (Docker)
Reproducible Research ❤ Containers
Docker for Geospatial Sensor Webs

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

4. Docker

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

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

7. Open access
Open access to data
Open access to data and procedures
Reproducibility platforms (identification/citation/credit, viewing, and downloading)
Meta-publications (Nature, Nature Geosciences, Science, …)
Motivation: Open Science
https://openaccessbutton.org/
Missing for reproducibility of computational research:
access to and archival of runtime environments

8. To cut to the chase...
Who of you can reproduce a scientific analysis
conducted 5 years ago today?
Who of you is sure she can start a multi-service
demonstrator of a research project that was
finished today in 5 years?

9. https://github.com/docker
https://docker.com

10. 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
Houses vs. Appartments
Docker @ ARM / RaspberryPI !

11. 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

12. Docker for Reproducible Research

13. Executable Research Compendium
Docker logo courtesy of Docker Inc.; Trafic lights Bluemix via Wikimedia Commons; crowbar by Delapouite via game-icons.net; zipper by RRZEIcons,
cursor by Subhashish Panigrahi, via Wikimedia Commons;

14. http://o2r.info/almost

15. Docker for Geospatial Sensor Webs

16. 52°North Helgoland
$ docker run -p 80:8080
52north/helgoland
http://172.17.0.2:8080/#/
$ docker run -p 80:80
geocontainers/52n-helgoland
http://localhost/#/
Differences: BRANCH env var, nginx
vs. node, git clone during build (Hub)

17. 52°North SOS
Whole (!) Dockerfile based on Debian (unsimplified)
FROM tomcat:9
WORKDIR /tmp
RUN curl -L -o sos-bundle.zip http://../491-52n-sensorweb-sos-bundle-4-3-7
RUN unzip -d sos-bundle sos-bundle.zip
RUN cp sos-bundle/*.war $CATALINA_HOME/webapps/52n-sos-webapp.war
RUN rm -r *
Command to run image based on Alpine
$ docker run --rm -p 80:8080 geocontainers/52n-sos-alpine
# http://localhost/52n-sos-webapp/
docker-compose configuration (SOS + PostGIS DB)

18. 52°North SOS on Docker Cloud with AWS EC2
”1 Minute Deployment”

19. Docker for Geospatial Projects
https://wiki.osgeo.org/wiki/DockerImages
http://geocontainers.org

20. Docker for Geospatial Sensor Webs
We need to catch up with mainstream IT
Collaborate more effectively (prod/dev/research)
Spread software more easily and more DevOps friendly by
bringing down requirements to 1 software and installation to 1
command
Quickly (re) create dev, demo, test, production (customer!)
environments
Effective deployment of the latest software thin your own
infrastructure or in the cloud
http://simpleicon.com/money-7.html

21. Docker for Geospatial Sensor Webs - How?
1. Use it! You admins won’t mind. Your work will be easier.
2. Provide and share (!) images and docker-compose files
for popular services on Docker Hub (52°North is getting
started)
https://github.com/Geonovum/smartemission/tree/master/docker/sos52n
3. Keep in mind during implementation (e.g. configurability)
4. Add getting services cloud ready + scalable prominently
to all funding efforts
5. Experiment with desktop apps
https://wiki.52north.org/Documentation/Docker
https://hub.docker.com/u/52north/

22. Thanks for your attention!
What are your questions?
http://o2r.info/almost
http://o2r.info @o2r_project daniel.nuest@wwu.de
@nordholmen