Set up ubuntu for katello test env

steps.md

• Install ruby

sudo snap install ruby --classic
sudo snap switch ruby --channel=2.3/stable
sudo snap refresh

• Install system deps: sudo apt-get install libsystemd-dev make postgresql git ruby-libvirt build-essential patch ruby-dev zlib1g-dev liblzma-dev libxml2-dev libcurl4-openssl-dev libpq-dev
• sudo apt install qemu-kvm libvirt-daemon-system libvirt-dev (some might not be needed)
• sudo apt install nodejs needs a JS runtime for some reason
• git clone foreman + katello (as siblings)
• echo "gemspec :path => '../', :development_group => :dev" > ~/foreman/bundler.d/Gemfile.local.rb
• add psql template to ~/foreman/config/database.yml
• bundle install --without=development --jobs=5 --retry=5 in foreman
• change /etc/postgresql/12/main/pg_hba.conf to local all all trust and sudo systemctl restart postgresql (might not need)
• setup postgresql with foreman user create role foreman with createdb login password 'foreman'; (run as postgres user and psql) and alter role foreman superuser
• setup postgresql-evr

cd /usr/share/postgresql/12/extension/
sudo wget https://raw.githubusercontent.com/Katello/postgresql-evr/master/evr.control
sudo wget https://raw.githubusercontent.com/Katello/postgresql-evr/master/evr--0.0.2.sql

• bundle exec rails db:create
• bundle exec rails db:migrate
• bundle exec rails db:test:prepare