tile-server

Simple tile server for .mbtiles-files written in C# with minimal APIs.

Quickstart

Development environment

Run dotnet run in the src folder to start the application.

Standalone (Release)

Download the latest standalone.zip from the release page, place your .mbtiles-file in the "data"-folder, rename it to map_data.mbtiles and start the .NET application. The tiles are available at https://localhost:5001/{z}/{x}/{y}.png.

Docker setup

1. Place your .mbtiles file in the ./data directory (mkdir data) and rename it to map_data.mbtiles.
2. Generate a (trusted) https certificate and place it in the https folder:
   dotnet dev-certs https -ep ./https/aspnetapp.pfx -p <password>
dotnet dev-certs https --trust
3. Enter your chosen https certificate password in the docker-compose.yml environment variable.
4. Build the tile server with docker compose build.
5. Run the server with docker compose up.
6. Open the ./test/index.html to see a leaflet-demo.
7. [Optional] Enter the container with docker exec -it tile-server-app-1 bash.

Operations

dotnet-counters and dotnet-dump are available in the /tools-folder of the tile-server. /tools/dotnet-counters monitor -p 1 can provide a high-level overview of the applications health (CPU usage, GC- and thread pool information,...).

/tools/dotnet-dump collect -p 1 can be used to create (and also analyze) dumps.

Stress testing

Install k6 by Grafana Labs and run the following command: k6 run test/k6.js

Statistics

Statistics from a local bombardier benchmark:

./bombardier https://localhost/5/15/19.png -d 120s --insecure

Bombarding https://localhost:443/5/15/19.png for 2m0s using 125 connection(s)
Done!
Statistics        Avg      Stdev        Max
  Reqs/sec     36734.64    4022.55   47849.41
  Latency        3.40ms     1.08ms   122.90ms
  HTTP codes:
    1xx - 0, 2xx - 4407445, 3xx - 0, 4xx - 0, 5xx - 0
    others - 0
  Throughput:   716.23MB/s

Used mbtiles file

https://ftp.gwdg.de/pub/misc/openstreetmap/openandromaps/world/OAM-World-1-8-min-J80.mbtiles