Cloud Craft for Spatial Cadets

Katie Miller (@codemiller)OpenShift Developer Advocate at Red Hat

The Spatial Zone

Terminology

• Datum
• Projection

Data Formatting

• WGS84 (EPSG:4326)
• GeoJSON
• ogr2ogr

Finding Data

• Data.gov.au and Data.govt.nz
• Koordinates
• GeoCommons
• OpenStreetMap
• GeoNames
• WeoGeo

Under the Hood

Flask

Python microframework based on Werkzeug and Jinja 2

Leaflet.js

Mobile-ready JavaScript library for interactive maps

MongoDB

Schemaless document database

Spatial with MongoDB

• Handles GeoJSON natively
• Supports 2D and 2DSphere indices
• Geospatial query functionality includes proximity ($near), inclusion ($geoWithin), and intersection ($geoIntersects)

Platform as a Service

Cloud Application Platform

Why PaaS

• Focus on code, not config
• Deployment speed
• Convenience
• Efficiency
• Scalability
• Polyglot capabilities

Application Scaling

Vertical vs Horizontal

Auto-Scaling

Resources and Credits

Resources

• Demo Application Source
• Finding and Making Sense of Geospatial Data on the Internet
• MongoDB Documentation: Geospatial Indexes and Queries
• OpenShift Online
• Use OpenShift to Map River Levels With Flask, MongoDB, Leaflet, and OpenStreetMaps
• Using PostGIS 2.1 on OpenShift

Image Credits

• Ants Collaborating (Troup Dresser, CC BY-NC 2.0)
• David and Goliath [cropped] (Fredrik Rødland, CC BY-NC-SA 2.0)
• Dunny Race at Outback Festival in Winton, Queensland: Used with permission
• Imgur.com: Toilet Paper Cat
• MorgueFile
• Open Clip Art Library
• Toilet Map Icon Contributed by Ben Hoad

Cloud Craft for Spatial Cadets

http://cadets.codemiller.com

Katie Miller (@codemiller)OpenShift Developer Advocate at Red Hat