How access variable from one playbook in the other playbook?

Archives Ansible Project
1

Hello.

I'm trying to set up application with database.

My current (simplified) version looks like this:

site.yml:
- include db.yml
- include app.yml

db.yml
- hosts: db
- roles: foo.install_db

app.yml
- hosts: app
- roles: bar.install_app

In the group_var/db I have settings:
db_address: '{{ansible_eth2.address}}'

And I want to use for app:

group_var/app:
database_address: '{{db_address}}'

But it (non-)obviously does not work.

I've tried to use {{hostvar...}}, but it works with hosts, not with groups.

I feel like I'm doing something strange, but I don't know how to do it right. I need to (in runtime) get ip address of server, based on it group/role, and use it in other role. And this IP can not be hardcoded, because eth2 is not configured by ansible and can be only found in runtime...

Please help, Thanks!

2

Variable referencing in variable files is not something supported.
Try referencing the var like this (in the task): hostvars[groups[‘db’][0]].db_address
That is for general, cross-groups vars sharing.

But for what you need, you could use hostvars[‘db’].ansible_eth2.ipv4.address and forget about setting that in var files.

Hope this helps,

Dan.