Base
Hardened build
minimal ports, security patches applied at build time
GeoWebCache 2.0 on Ubuntu 24.04 LTS
Azure
Applications
GeoWebCache, a tile cache server that speeds up web maps by pre rendering and storing map tiles and serving them over WMTS, TMS and WMS, ready to serve tiles on first boot.
Overview
GeoWebCache is a tile cache server and caching proxy from the GeoServer and GeoTools ecosystem. It sits in front of a WMS map source and turns slow, on demand map rendering into fast tile delivery: it pre renders tiles for the zoom levels and regions you care about, stores them in a blob store on disk, and serves them straight from cache over the standard WMTS, TMS and WMS tiling protocols. Web mapping clients such as OpenLayers, Leaflet and MapLibre request tiles by grid position and receive them in milliseconds, so an interactive map stays smooth even under heavy traffic, while the backend map server is spared from re rendering the same views over and over. Tiles can be seeded in bulk ahead of time or filled lazily on first request, and an authenticated REST API drives seeding, truncation and reconfiguration.
Why the cloudimg image
cloudimg ships GeoWebCache hardened and fully patched, running as a Java servlet application behind an nginx reverse proxy with the container bound to the loopback interface so it is reachable only through the front door. It is secure by default with no shared credential in the image: the well known default admin password is never shipped, and first boot generates a unique administrator password, writes it to a file only root can read, and reloads the server so no two machines share a secret. The tile service is public by design while the REST, seed and reconfiguration endpoints require authentication, so no one can trigger seeding or change the configuration unauthenticated. A demo OpenStreetMap layer is pre seeded into the cache at build time, so the appliance serves real map tiles from disk the moment it boots with no external dependency, and the build is verified before release to prove a genuine tile request returns a real image. Every deployment comes with a paired deploy guide and 24/7 cloudimg support.
Common uses
- Accelerate a WMS map backend by serving pre rendered tiles from cache
- Stand up a WMTS or TMS tile endpoint for OpenLayers, Leaflet and MapLibre clients
- Pre seed and cache map tiles for high traffic web maps and offline delivery
See it running
Real screenshots taken while testing this image against its deployment guide.
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