Create postgis-tileserver.md

postgis-tileserver.md

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+# How to run a simple PostGis Tileserver
+
+TODO: What is PostGis
+TODO: What is a Tileserver
+
+## Assumption
+
+- Ubuntu ...
+- something else?
+
+## Docker postgis
+
+```sh
+docker run --name some-postgis -p 5433:5432 -e POSTGRES_PASSWORD=postgres -d postgis/postgis
+```
+
+### Verifying it works
+
+connect with psql
+
+## Preparing the database
+
+```sh
+psql --host=localhost --port=5433 --username=postgres
+```
+
+```
+CREATE DATABASE osm;
+```
+
+and then those extensions (TODO: why?)
+
+```
+CREATE EXTENSION postgis;
+
+CREATE EXTENSION postgis_topology;
+
+CREATE EXTENSION hstore;
+```
+
+## Inserting the data
+
+
+```sh
+./osm2pgsql --host localhost --port 5433 --username postgres -W -d osm --style=streets.lua -O flex da0875e7-5909-4f02-8d3d-8990c898d8de.osm.pbf
+```
+
+## Serving with pg_tileserv
+
+```sh
+ export DATABASE_URL=postgresql://postgres:postgres@localhost:5433/osm
+ ./pg_tileserv
+ ```
+
+ -> 
+
+ ```sh
+INFO[0000] pg_tileserv latest
+INFO[0000] Run with --help parameter for commandline options
+INFO[0000] Using database connection info from environment variable DATABASE_URL
+INFO[0000] Serving HTTP  at http://0.0.0.0:7800/
+INFO[0000] Serving HTTPS at http://0.0.0.0:7801/
+INFO[0000] Using CoordinateSystem.SRID 3857 with bounds [-2.00375083427892e+07, -2.00375083427892e+07, 2.00375083427892e+07, 2.00375083427892e+07]
+INFO[0000] Connected as 'postgres' to 'osm' @ 'localhost'
+INFO[0000] Serving HTTP  at 0.0.0.0:7800
+```
+
+
+
+[Based in this example](https://osm2pgsql.org/examples/vector-tiles/)
+
+Open Webbrowser at 0.0.0.0:7800
+
+
+