jlyon/OSM Tilemill.md Secret

## OSM Tilemill.md

      
    Raw
  

              OSM Tilemill.md
            
          
    Tilemill, PostGIS, OSM Bright

Useful resource: Setting up PostGIS (postgres-9.3), qGIS.
Setting up tilemill as a service

From http://www.mapbox.com/tilemill/docs/guides/ubuntu-service/.
# Tilemill
sudo add-apt-repository ppa:developmentseed/mapbox
sudo add-apt-repository ppa:mapnik/v2.2.0
sudo apt-get update
sudo apt-get install tilemill libmapnik nodejs
# Preferences can be changed by editing /etc/tilemill/tilemill.config

# Run with /usr/share/tilemill/index.js --server=true
# You should also be able to run with service tilemill start, but 
# I couldn't get that to read the config file properly.

Setting up PostGIS (and Postgres)

PostGIS install instructions from Setting up PostGIS (postgres-9.3), qGIS.
# Dependencies: postGIS
sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ precise-pgdg main" >> /etc/apt/sources.list'
wget --quiet -O - http://apt.postgresql.org/pub/repos/apt/ACCC4CF8.asc | sudo apt-key add -
sudo apt-get update
sudo apt-get install postgresql-9.3-postgis-2.1 pgadmin3 postgresql-contrib
sudo apt-get install phppgadmin

Edit file
sudo nano /etc/postgresql/9.3/main/pg_hba.conf
Add (change last column to trust):
local   all             postgres                                trust

# TYPE  DATABASE        USER            ADDRESS                 METHOD

# "local" is for Unix domain socket connections only
local   all             all                                     trust
# IPv4 local connections:
host    all             all             127.0.0.1/32            trust
# IPv6 local connections:
host    all             all             ::1/128                 trust

To make Postgres accessible from outside localhost (from http://www.cyberciti.biz/tips/postgres-allow-remote-access-tcp-connection.html):
su - postgres
echo 'host all all 50.174.116.72/24 trust' >> /etc/postgresql/9.3/main/pg_hba.conf
#echo 'host all all 0.0.0.0/0 trust' >> /etc/postgresql/9.3/main/pg_hba.conf

The first will give access to a specifc ip.  The latter gives access to everyone.  See this blog post for details.
Edit /etc/postgresql/9.3/main/postgresql.conf, change listen_addresses='localhost' to listen_addresses='*'.
sudo /etc/init.d/postgresql restart

Now create the osm table and import PostGIS:
export GTFS_DB=osm
psql -U postgres -c "drop database if exists \"$GTFS_DB\";"
psql -U postgres -c "create database \"$GTFS_DB\";"
psql -U postgres -d "$GTFS_DB" -c "CREATE EXTENSION fuzzystrmatch;"
psql -U postgres -d "$GTFS_DB" -c "CREATE EXTENSION postgis;"
psql -U postgres -d "$GTFS_DB" -c "CREATE EXTENSION postgis_topology;"
psql -U postgres -d "$GTFS_DB" -c "CREATE EXTENSION postgis_tiger_geocoder;"

Postgres Tips and tricks

From http://stackoverflow.com/questions/761327/hidden-features-of-postgresql
Show list of all dbs and their size:
select datname, pg_size_pretty(pg_database_size(datname)) as size
  from pg_database;

Connect to db:
\c dbname

Show all tables in a db:
\d

Show size of all tables in db:
select schemaname, relname,
    pg_size_pretty(pg_relation_size(schemaname || '.' || relname)) as size
  from (select schemaname, relname, 'table' as type
          from pg_stat_user_tables
        union all
        select schemaname, relname, 'index' as type
          from pg_stat_user_indexes) x;

Show table schema
\d+ tablename

Setting up OSM Bright

From http://www.mapbox.com/tilemill/docs/guides/osm-bright-ubuntu-quickstart/.
# Dependencies: imposm
sudo aptitude install build-essential python-dev protobuf-compiler \
    libprotobuf-dev libtokyocabinet-dev python-psycopg2 libgeos-c1
sudo apt-get install python-pip
sudo pip install imposm

# Download Mapbox OSM Bright
cd ~/
wget https://github.com/mapbox/osm-bright/zipball/master
unzip master
mv mapbox-osm-bright-14bd07d osm-bright
rm master

Download .pbf osm file from http://metro.teczno.com or http://download.geofabrik.de/osm/.  Then import the file into PostGIS with imposm:
imposm -U postgres -d osm -m /root/osm-bright/imposm-mapping.py \
    --read --write --optimize --deploy-production-tables <data.osm.pbf>

Set up OSM Bright in ~/osm-bright
cd ~/osm-bright
cp configure.py.sample configure.py


Change config["importer"] = "osm2pgsql" to config["importer"] = "imposm", unless you prefer to use osm2pgsql and have that set up.
Optionally change the name of your project from the default, ‘OSM Bright’.
Adjust the path to point to your MapBox project folder, /root/Documents/MapBox/project/.
change the line that says config["postgis"]["user"] = "" to config["postgis"]["user"] = "postgres"
Save & close the file.

# Build a project file
./make.py

Starting Tilemill on the server:

/usr/share/tilemill/index.js --server=true

Connect to the remove server via ssh (we set up a subdomain maps.albatrossdemos.com pointing to 54.214.3.211):
ssh -CA root@54.214.3.79 -L 20009:localhost:20009 -L 20008:localhost:20008
# now you can access http://localhost:20009 in your local browser

Or, make the instance publically accessible (assign an IP address, create and A record, then make Tilemill listen to the url:
sudo sh -c 'echo export TILEMILL_HOST="maps.albatrossdemos.com"  >> /etc/profile'
mkdir /var/log/tilemill/
source /etc/profile
/usr/share/tilemill/index.js --server=true --listenHost=0.0.0.0 --coreUrl=${TILEMILL_HOST}:20009 --tileUrl=${TILEMILL_HOST}:20008

Or run it from a call to forever in crontab. Install forever (npm install forever -g). Run crontab -e and add:
@reboot forever "/usr/share/tilemill/index.js --server=true --listenHost=0.0.0.0 --coreUrl=${TILEMILL_HOST}:20009 --tileUrl=${TILEMILL_HOST}:20008' -l=/var/log/tilemill/forever.log -o=/var/log/tilemill/stdout.log -e=/var/log/tilemill/stderr.log"

Next Steps


Elevation data: http://www.mapbox.com/tilemill/docs/guides/terrain-data/
Convert from pbf to osm: ./osmconvert norway.pbf >norway.osm