Ansible: get current target host’s IP address

How do you get the current host’s IP address in a role?

I know you can get the list of groups the host is a member of and the hostname of the host but I am unable to find a solution to getting the IP address.

You can get the hostname by using {{inventory_hostname}} and the group by using {{group_names}}

I have tried things like {{ hostvars[{{ inventory_hostname }}]['ansible_ssh_host'] }}
and ip="{{ hostvars.{{ inventory_hostname }}.ansible_ssh_host }}"

A list of all addresses is stored in a fact ansible_all_ipv4_addresses, a default address in ansible_default_ipv4.address.

Then there are addresses assigned to each network interface… In such cases you can display all the facts and find the one that has the value you want to use.