Conditional Variables

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1

Hi All,

I just started using Ansible and I’m in the process of writing my first playbook.

I’m trying to configure HAProxy and depending on where I’m creating the instance, Vagrant vs EC2 I want to use a different network interface. eth0 vs eth1

What is the best way to tackle this situation. I want to avoid creating conditionals in the template.

Should I use external_vars and have two separate playbooks?

Thanks,
Drew

2

I would probably consider something basic like passing in a “-e mode=vagrant” or “-e mode=ec2” on the playbook option line, and then doing

when: mode == ‘vagrant’

or

when: mode == ‘ec2’

or better yet, maybe defining this variable in your inventory file at group level.

Will something like that work, perhaps?

–Michael

3

Thanks Mike, those both sound like two good solutions.

For the time being I created two different playbook’s with var’s defined within. As I try to collapse the two playbooks I’ll try using variables within the inventory file

Drew