smartemission/se-geoserver repository overview

⁠GeoServer service

The geoserver service provides a complete GeoServer instance with a complete configuration (GS data dir) specific for SE.

⁠Hosting

The Docker Image is hosted as: smartemission/se-geoserver at DockerHub⁠. Versioning via GH tags is done following GeoServer versions like 2.9.4 followed by an SE version number, for example 2.9.4-1, 2.9.4-2 etc.

⁠Environment

The following environment vars need to be set, either via docker-compose or Kubernetes.

⁠Architecture

The image includes the official Kartoza GeoServer⁠ Docker Image hosted as kartoza/geoserver on DockerHub⁠ overlayed with a complete configuration (GeoServer data dir). Further vars from that config are overruled/set via its Container Environment at runtime via the entry.sh⁠ script.

⁠WMS Capabilities

As many Layers have a Dimension as Time enabled, the Dimension range (start-end time) is generated for each Layer and put in the Capabilities document. This results in queries on the Postgres database that take huge amount of time (about 1 minute per million records), even with the time column indexed. Basically a rowscan is done for all 20-30 Layers...In some cases GeoServer crashes. To overcome this a semi-static Capabilities document is generated from a template file wms-capabilities.xml⁠. This is handled via a custom Servlet Filter: the WmsCapabilitiesFilter.java⁠ that is added to the Tomcat web.xml⁠ config file.

⁠Dependencies

• PostGIS backend

⁠Links

• SE Platform doc: http://smartplatform.readthedocs.io/en/latest/⁠
• OGC SensorThings API Standard: http://www.opengeospatial.org/standards/sensorthings⁠