Update local vars

[Aleksey Ezhov]

Hello.
how to update the local vars, after receiving the input parameter
example:

 roles/new/vars/main.yaml
list:
 - name: service1
   pckg: namepckg
   version: trunk

 - name: service2
   pckg: namepckg
   version: trunk

run playbook start.yaml

- hosts: somehost
  remote_user: ansible
  connection: ssh
  become: yes
  gather_facts: nj
  vars: 
   revision: "tags-2.6"
  roles:
   - new


I want to update vars pckg for service2 and/or service1 (use   with_subelements) to a value revision

should get
 - name: service1
   pckg: namepckg
   version: tags-2.6

 - name: service2
   pckg: namepckg
   version: tags-2.6

how to do it?