Ansible: how to construct a variable from another variable and then fetch it's value

Question

Here is my problem I need to use one variable \'target_host\' and then append \'_host\' to it\'s value to get another variable name whose value I need. If you look at my pl

Answer 1

You can try global array var:

regions:
  us-east-1:
    endpoint: rds.us-east-1.amazonaws.com
  cn-north-1:
    endpoint: rds.cn-north-1.amazonaws.com.cn
  cn-northwest-1:
    endpoint: rds.cn-northwest-1.amazonaws.com.cn

And use it to get value depending of another:

region_endpoint: "{{ regions[region].endpoint}}"

In your case:

target_host:
  imap:
    host: imap.max.com
  smtp:
    host: smtp.max.com

then:

region_endpoint: "{{ target_host[service].host}}"