TileServer¶

For updates, see also: #6907

TileServer-gl is a small node application that can serve vector tiles (mbtiles) for mapbox without the need for an external provider.

The maps Gisaf base layers (the definition file being located in gisaf-app/src/app/map/base_styles.ts) in can be parametered such that a base layer is hosted locally (see the gisaf config file).

Install tileserver-gl-light¶

Unfortunately, it requires a much older version of node (6.x).

Install node V6:¶

cd /usr/local
curl -O https://nodejs.org/download/release/v6.14.4/node-v6.14.4-linux-x64.tar.xz
tar xf node-v6.14.4-linux-x64.tar.xz

Install TileServer¶

export PATH=/usr/local/node-v6.14.4-linux-x64/bin:$PATH
npm install -g tileserver-gl-light

Download the mbtiles¶

From openmaptiles (outdated versions only)¶

From: https://openmaptiles.com/downloads/planet/ , and store the relevant one on the server's filesystem (eg. /usr/local/2017-07-03_asia_india.mbtiles)

Directly from osm (updated)¶

Prerequisite: gdal version 2.3.2 (Not available on Stretch: use Buster)

apt install gdal-bin

Download and convert to MBTiles:

All India:

cd /usr/local
curl -O http://download.geofabrik.de/asia/india-latest.osm.bz2
tar xvf india-latest.osm.bz2
ogr2ogr -s_srs EPSG:4326 -t_srs EPSG:3857 -a_srs EPSG:3857 -f MBTILES asia_india.mbtiles india-latest.osm.pbf -dsco MAXZOOM=14

Tamil Nadu:

cd /usr/local
curl -O http://download.openstreetmap.fr/extracts/asia/india/tamil_nadu.osm.pbf
ogr2ogr -s_srs EPSG:4326 -t_srs EPSG:3857 -a_srs EPSG:3857 -f MBTILES asia_india_tn.mbtiles tamil_nadu.osm.pbf -dsco MAXZOOM=14

Configuration¶

Tamil Nadu:¶

/etc/tileserver/config-tn.json:

{
  "options": {
    "paths": {
      "root": "",
      "sprites": "/usr/local/node-v6.14.4-linux-x64/lib/node_modules/tileserver-gl-light/node_modules/tileserver-gl-styles/styles/osm-bright" 
    },
    "domains": [
      "gis.auroville.org.in/tiles" 
    ],
    "styles": {}
  },
  "data": {
    "india-vector": {
      "mbtiles": "/usr/local/asia_india_tn.mbtiles" 
    }
  }
}

All India¶

/etc/tileserver/config.json:

{
  "options": {
    "paths": {
      "root": "",
      "sprites": "/usr/local/node-v6.14.4-linux-x64/lib/node_modules/tileserver-gl-light/node_modules/tileserver-gl-styles/styles/osm-bright" 
    },
    "domains": [
      "gis.auroville.org.in/tiles" 
    ],
    "styles": {}
  },
  "data": {
    "india-vector": {
      "mbtiles": "/usr/local/asia_india.mbtiles" 
    }
  }
}

Service¶

A systemd service configuration file, in /etc/systemd/system/tileserver-gl-light.service. Adjust according to the tileserver config -c option.

[Service]
ExecStart=/usr/local/node-v6.14.4-linux-x64/bin/node /usr/local/node-v6.14.4-linux-x64/lib/node_modules/tileserver-gl-light/src/main.js --no-cors -c /etc/tileserver/config-tn.json
Restart=always
User=www-data
Group=www-data
Environment=NODE_ENV=production

[Install]
WantedBy=multi-user.target

Run the service¶

systemctl enable --now tileserver-gl-light.service

nginx proxy¶

In order the mbtiles to be served by tileserver, add in the nginx conf (adjust eventually):

    location /tiles/ {
        proxy_pass http://127.0.0.1:8080/;
    }