Trying to use previous task output to new task to modify one file, But it is throwing error variable not defined

[Sudhanshu Sharma]

Hi,

I am trying to use previous task output to new task to modify one file, But it is throwing error variable not defined - 

---
- hosts: host4
remote_user: root
tasks:
- name: Get MAC of host4
shell: cat /sys/class/net/eth0/address

register: x

- debug: var=x.stdout

- hosts: host3
remote_user: root
tasks:
- name: find MAC_hos4 word in topology.cfg and replace the same with actual MAC of host4
lineinfile: path=/root/topology.cfg
regexp= '^mac=MAC_IS'
line= 'mac={{x.stdout}}'

Can any one please suggest something to rectify the problem.

[Brian Coca]

x only exists for host4, in the context of host3 it does not, you need to do:

{{hostvars['host4']['x']['stdout']}}


----------
Brian Coca

[Sudhanshu Sharma]

Thanks Brian,

Its working. 

as I am using Ansible version 2.2 so I used " instead of '  - 

{{hostvars["host4"]["x"]["stdout"]}}

Thanks once again :) 

Br//Sudhanshu