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

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1

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

2

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.

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

3

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