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Install Nominatim in a virtual machine for development and testing

This document describes how you can install Nominatim inside a Ubuntu 14 virtual machine on your desktop/laptop (host machine). The goal is to give you a development environment to easily edit code and run the test suite without affecting the rest of your system.

The installation can run largely unsupervised. You should expect 1-2h from start to finish depending on how fast your computer and download speed is.

Prerequisites

  1. Virtualbox

  2. Vagrant

  3. Nominatim

     git clone --recursive https://github.com/twain47/Nominatim.git

    If you haven't used --recursive, then you can load the submodules using

     git submodule init
 git submodule update

Installation

  1. Start the virtual machine

     vagrant up

  2. Log into the virtual machine

     vagrant ssh

  3. Import a small country (Monaco)

    You need to give the virtual machine more memory (2GB) for an import, see Vagrantfile. Otherwise 1GB is enough.

    See the FAQ how to skip this step and point Nominatim to an existing database.

# inside the virtual machine:
cd Nominatim
  wget --no-verbose --output-document=data/monaco.osm.pbf http://download.geofabrik.de/europe/monaco-latest.osm.pbf
  ./utils/setup.php --osm-file data/monaco.osm.pbf --osm2pgsql-cache 1000 --all 2>&1 | tee monaco.$$.log
  ./utils/specialphrases.php --countries > data/specialphrases_countries.sql
  psql -d nominatim -f data/specialphrases_countries.sql
  ```

To repeat an import you'd need to delete the database first

      dropdb --username postgres -if-exists nominatim



## Development

Vagrant maps the virtual machine's port 8089 to your host machine. Thus you can
see Nominatim in action on [locahost:8089](http://localhost:8089/nominatim/).

You edit code on your host machine in any editor you like. There is no need to
restart any software: just refresh your browser window.

PHP errors are written to `/var/log/apache2/error.log`.

With `echo` and `var_dump()` you write into the output (HTML/XML/JSON) when
you either add `&debug=1` to the URL (preferred) or set
`@define('CONST_Debug', true);` in `settings/local.php`.




## Running functional tests

Tests in `/features/db` and `/features/osm2pgsql` have to pass 100%. Other
tests might require full planet-wide data. Sadly even if you have your own
planet-wide data there will be enough differences to the openstreetmap.org
installation to cause false positives in the other tests (see FAQ). 

To run the full test suite

  cd ~/Nominatim/tests
  NOMINATIM_SERVER=http://localhost:8089/nominatim lettuce features

To run a single file

  NOMINATIM_SERVER=http://localhost:8089/nominatim lettuce features/api/reverse.feature
  
To run specific tests you can add tags just before the `Scenario line`, e.g.

  @bug-34
  Scenario: address lookup for non-existing or invalid node, way, relation

and then

  NOMINATIM_SERVER=http://localhost:8089/nominatim lettuce -t bug-34


## Running unit tests

  cd ~/Nominatim/tests-php
  phpunit ./






## FAQ

##### Will it run on Windows?

Yes, Vagrant and Virtualbox can be installed on MS Windows just fine. You need a 64bit
version of Windows.


##### Why Monaco, can I use another country?

Of course! The Monaco import takes less than 30 minutes and works with 2GB RAM.

##### Will the results be the same as those from nominatim.openstreetmap.org?

No. Long running Nominatim installations will differ once new import features (or
bug fixes) get added since those usually only get applied to new/changed data.

Also this document skips the optional Wikipedia data import which affects ranking
of search results. See [Nominatim instllation](http://wiki.openstreetmap.org/wiki/Nominatim/Installation) for details.

##### Why Ubuntu, can I test CentOS/CoreOS/FreeBSD?

In general Nominatim will run in all these environment. The installation steps
are slightly different, e.g. the name of the package manager, Apache2 package
name, location of files. We chose Ubuntu because that is closest to the
nominatim.openstreetmap.org production environment.

You can configure/download other Vagrant boxes from [vagrantbox.es](http://www.vagrantbox.es/).


##### How can I connect to an existing database?

Let's say you have a Postgres database named `nominatim_it` on server `your-server.com` and port `5432`. The Postgres username is `postgres`. You can edit `settings/local.php` and point Nominatim to it.

  pgsql://[email protected]:5432/nominatim_it
  
No data import necessary, no restarting necessary.

If the Postgres installation is behind a firewall, you can try

  ssh -L 9999:localhost:5432 [email protected]

inside the virtual machine. It will map the port to `localhost:9999` and then
you edit `settings/local.php` with

  pgsql://postgres@localhost:9999/nominatim_it


##### My computer is slow and the import takes too long. Can I start the virtual machine "in the cloud"?

Yes. It's possible to start the virtual machine on [Amazon AWS (plugin)](https://github.com/mitchellh/vagrant-aws) or [DigitalOcean (plugin)](https://github.com/smdahlen/vagrant-digitalocean).