Hostname: {{ ansible_facts.nodename }}

OS: {{ ansible_facts.distribution }} {{ ansible_facts.distribution_version }}

Kernel: {{ ansible_facts.kernel }}

Memory usage: {{ ansible_facts.memfree_mb }}/{{ ansible_facts.memtotal_mb }}MB

Python version: {{ ansible_facts.python_version }}

{% if groups['postgresql'] is defined and groups['postgresql']|length > 0 %}

{% endif %}