Support replacing tile sources

tileserver/Dockerfile

@@ -1,9 +1,34 @@
-FROM node:0.12.7
+FROM node:0.10
 MAINTAINER Lukas Martinelli <me@lukasmartinelli.ch>
 
-RUN npm install -g tessera
-RUN npm install -g mbtiles tilelive-tmstyle tilelive-tmsource
+# make sure the mapbox fonts are available on the system
+RUN mkdir -p /tmp/mapbox-studio-default-fonts && \
+    mkdir -p /fonts && \
+    git clone https://github.com/mapbox/mapbox-studio-default-fonts.git /tmp/mapbox-studio-default-fonts && \
+    cp /tmp/mapbox-studio-default-fonts/**/*.otf /fonts && \
+    cp /tmp/mapbox-studio-default-fonts/**/*.ttf /fonts && \
+    rm -rf /tmp/mapbox-studio-default-fonts
+ENV MAPNIK_FONT_PATH=/fonts
 
+# only install minimal amount of tessera packages
+# be careful as some tessera packages collide with itself
+RUN npm install -g tessera
+RUN npm install -g mbtiles \
+           tilelive-tmstyle \
+           tilelive-http
+
+RUN mkdir -p /usr/src/app
+COPY run.sh /usr/src/app/
+
+# mountpoint of custom mbtiles files and tm2 projects
 VOLUME /data
-WORKDIR /data
-EXPOSE 8080
+ENV SOURCE_DATA_DIR=/data
+
+# destination of modified tm2 projects
+VOLUME /project
+ENV DEST_DATA_DIR=/project
+
+EXPOSE 80
+ENV PORT=80
+
+CMD ["/usr/src/app/run.sh"]

tileserver/README.md

@@ -1,4 +1,36 @@
-Contains the vectortiles-server and rastertiles-server.
+# Tileserver
+
+Render raster data from vector tiles and style projects
+on the fly with the help of [tessera](https://github.com/mojodna/tessera).
+
+You plug in your vector tiles and style projects and
+you have a hosted tileserver.
+
+## Kitematic Usage
+
+## Docker Usage
+
+Mount your `mbtiles` files and `tm2` style projects into the `/data` volume.
+If your `mbtiles` sources are named the same as your `tm2` project the
+script will automatically replace the source specified in the `data.yml`
+of your `tm2` project with the according `mbtiles` source.
+
+Give the current folder contains the following files and directories.
+
+```
+├── countries.tm2
+└── countries.mbtiles
+
+```
+
+You can run a docker container.
+
+```
+docker run -p 8080:8080 -v $(pwd):/data osm2vectortiles/tileserver
+```
+
+No visit `localhost:8080` to see a leaflet map of the rendered raster tiles.
+
 
 **Why tessera?**
 

tileserver/run.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+set -o errexit
+set -o pipefail
+set -o nounset
+
+source_data_dir=${SOURCE_DATA_DIR:-/data}
+dest_data_dir=${DEST_DATA_DIR:-/project}
+port=${PORT:-8080}
+cache_size=${CACHE_SIZE:-10}
+source_cache_size=${SOURCE_CACHE_SIZE:-10}
+
+# find all tm2 projects but only the first project will be hosted for now
+for project_dir in "$source_data_dir"/*.tm2; do
+    project_name="${project_dir##*/}"
+    project_config_file="${project_dir%%/}/project.yml"
+    vectortiles_name="${project_name%.tm2}.mbtiles"
+    mbtiles_file="${source_data_dir%%/}/$vectortiles_name"
+
+    # project config will be copied to new folder because we
+    # modify the source configuration of the style and don't want
+    # that to effect the original file
+    dest_project_dir="${dest_data_dir%%/}/$project_name"
+    dest_project_config_file="${dest_project_dir%%/}/project.yml"
+    cp -r "$project_dir" "$dest_project_dir"
+
+    # project.yml is single source of truth, therefore the mapnik
+    # stylesheet is not necessary
+    rm "${dest_project_dir%%/}/project.xml"
+
+    # replace external vector tile sources with mbtiles source
+    # this allows developing rapidyl with an external source and then use the
+    # mbtiles for dependency free deployment
+    if [ -f "$mbtiles_file" ]; then
+        replace_expr="s|source: \".*\"|source: \"mbtiles://$mbtiles_file\"|g"
+        sed -e "$replace_expr" $project_config_file > $dest_project_config_file
+    fi
+
+    exec tessera "tmstyle://$dest_project_dir" \
+        --port $port \
+        --cache-size $cache_size \
+        --source-cache-size $source_cache_size
+done