# Discourse Advanced Developer Install Guide This guide is aimed at advanced Rails developers who have installed their own Rails apps before. If you are new to Rails, you are likely much better off with our **[Discourse Vagrant Developer Guide](VAGRANT.md)**. Note: If you are developing on a Mac, you will probably want to look at [these instructions](DEVELOPMENT-OSX-NATIVE.md) as well. # Preparing a fresh Ubuntu install To get your Ubuntu 16.04 LTS install up and running to develop Discourse and Discourse plugins follow the commands below. We assume an English install of Ubuntu. # Basics whoami > /tmp/username sudo add-apt-repository ppa:chris-lea/redis-server sudo apt-get -yqq update sudo apt-get -yqq install python-software-properties vim curl expect debconf-utils git-core build-essential zlib1g-dev libssl-dev openssl libcurl4-openssl-dev libreadline6-dev libpcre3 libpcre3-dev imagemagick postgresql postgresql-contrib-9.5 libpq-dev postgresql-server-dev-9.5 redis-server advancecomp gifsicle jhead jpegoptim libjpeg-turbo-progs optipng pngcrush pngquant gnupg2 # Ruby curl -sSL https://rvm.io/mpapis.asc | gpg2 --import - curl -sSL https://get.rvm.io | bash -s stable echo 'gem: --no-document' >> ~/.gemrc # exit the terminal and open it again to activate RVM rvm install 2.3.4 rvm --default use 2.3.4 # If this error out check https://rvm.io/integration/gnome-terminal gem install bundler mailcatcher # Postgresql sudo -u postgres -i createuser --superuser -Upostgres $(cat /tmp/username) psql -c "ALTER USER $(cat /tmp/username) WITH PASSWORD 'password';" exit # Node curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.2/install.sh | bash # exit the terminal and open it again to activate NVM nvm install node nvm alias default node npm install -g svgo If everything goes alright, let's clone Discourse and start hacking: git clone https://github.com/discourse/discourse.git ~/discourse cd ~/discourse bundle install # run this if there was a pre-existing database bundle exec rake db:drop RAILS_ENV=test bundle exec rake db:drop # time to create the database and run migrations bundle exec rake db:create db:migrate RAILS_ENV=test bundle exec rake db:create db:migrate # run the specs (optional) bundle exec rake autospec # CTRL + C to stop # launch discourse bundle exec rails s -b 0.0.0.0 # open browser on http://localhost:3000 and you should see Discourse Create an admin account with: bundle exec rake admin:create If you ever need to recreate your database: bundle exec rake db:drop db:create db:migrate bundle exec rake admin:create RAILS_ENV=test bundle exec rake db:drop db:create db:migrate Discourse does a lot of stuff async, so it's better to run sidekiq even on development mode: mailcatcher # open http://localhost:1080 to see the emails, stop with pkill -f mailcatcher bundle exec sidekiq # open http://localhost:3000/sidekiq to see queues bundle exec rails server And happy hacking!