docker extra_host parameter expects a dictionary value for hostname, how can I use a variable?

Question

In ansible playbook docker parameter extra_host takes two parts host: ip_address. I am trying to pass the host and ipaddress in as variables. They are from prompt vars. The end

Answer 1

Make server_host_ip dict with set_fact before your task:

- set_fact:
    server_host_ip: "{'{{host_name}}':'{{host_ip}}'}"

And use {{server_host_ip}} in the docker module.