For this recipe, we will need at least three PostgreSQL servers. For demonstration purposes, we'll assume they are named pg1, pg2, and pg3. Follow these steps on all three servers:
- Debian-based systems should use this apt-get command to install as many distribution-provided packages as possible:
sudo apt-get install python-psycopg2 python-pip python-yaml
- Red-Hat-based systems will need to substitute this yum command instead:
sudo yum install python-psycopg2 python-pip PyYAML
