Pass conditional value to environment variable based on host in Ansible playbook

[Parth Gandhi]

Hi,

I need to pass conditional value based on the host in the same group to environment variable in playbook. IS there a way to do it? 

Here is the use case. I have a host file with a group having 2 servers

hosts:

[rancher]

hostA

hostB

rancher_create.yaml:

- hosts: xyz

  docker_container:

    image: xyz

    env:

      IP: {{ hostA_IP }}

the IP environment variable should take host A ip for HostA  and hostB ip for HostB. Both the servers are used for same service in cluster and for cluster to setup there is a need to pass the individual IP to the docker container cmd.

Thanks,

Parth

[Mauricio Tavares]

http://docs.ansible.com/ansible/latest/intro_inventory.html#host-variables


> Thanks,
> Parth
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[Parth Gandhi]

Thanks, I was able to solve it using {{ ansible_eth0.ipv4.address }}. However your link was very helpful in understanding how the variables work.