ruby and rvm

## Postgres

Configure so that the vagrant user doesn't need to provide username and password.

    apt-get -yqq install postgresql postgresql-contrib-9.3 libpq-dev postgresql-server-dev-9.3
    su - postgres
    createuser --createdb --superuser -Upostgres vagrant
    psql -c "ALTER USER vagrant WITH PASSWORD 'password';"
    psql -c "create database discourse_development owner vagrant encoding 'UTF8' TEMPLATE template0;"
    psql -c "create database discourse_test        owner vagrant encoding 'UTF8' TEMPLATE template0;"
    psql -d discourse_development -c "CREATE EXTENSION hstore;"
    psql -d discourse_development -c "CREATE EXTENSION pg_trgm;"


Edit /etc/postgresql/9.3/main/pg_hba.conf to have this:

    local all all trust
    host all all 127.0.0.1/32 trust
    host all all ::1/128 trust
    host all all 0.0.0.0/0 trust # wide-open

## Redis

    sudo su -
    mkdir /tmp/redis_install
    cd /tmp/redis_install
    wget http://redis.googlecode.com/files/redis-2.6.7.tar.gz
    tar xvf redis-2.6.7.tar.gz
    cd redis-2.6.7
    make
    make install
    cd utils
    ./install_server.sh
    # Press enter to accept all the defaults
    /etc/init.d/redis_6379 start