Ansible

elalexluna83 · 08-17-2020, 11:24 AM

Hello There!
I have lot of servers that use multipath.
e.g.

Code:

multipath {
    wwid 369834349802938746554637382920111
    alias asm_disk1
}
multipath {
    wwid 369834349802938746554637382920112
    alias asm_disk2
}

I want an ansible playbook that add new entries for me. But it is not working right now. (new multipath entry inside a multipath entry)

Code:

multipath {
# BEGIN ANSIBLE MANAGED BLOCK
multipath {
     wwid 369834349802938746554637382920113
     alias asm_disk3
}
# END ANSIBLE MANAGED BLOCK
     wwid 369834349802938746554637382920112
     alias asm_disk2
}

This is my playbook. any ideas how to fix it?

Code:

---
- name: Update Multipath
  hosts: localhost
  become: yes

  tasks:
  - name:
    blockinfile:
      path: /etc/multipath.conf
      insertafter: 'multipath'
      block: |
        multipath {
            wwid 369834349802938746554637382920113
            alias asm_disk3
        }
      backup: yes

malayo · 08-25-2020, 11:45 PM

yaml semms valid, tried removing lines with "multipath {" and "}"

sgrlscz · 08-26-2020, 12:58 PM

I would change 'multipath' to 'multipaths'. That should then insert the new multipath at the top of the multipaths block.

The problem with the way it's written is that there are multiple lines that match 'multipath', and based on the behavior you're seeing, it looks like it's using the last match for where to do the insert. Since it's an 'insertafter', it sticks the new block into another multipath block.