Role fails if nmcli_add_addrs_connection is omitted

[robled]

Provided vars:

    nmcli_add_addrs_interface: p5p1
    nmcli_add_addrs_ipv4:
      - '192.168.168.1/24'

Result:

TASK [oasis_roles.nmcli_add_addrs : Add IPv4 address(es) to ''] ************************************************************************************************************************************************
failed: [example.com] (item=192.168.168.1/24) => changed=true
  ansible_loop_var: item
  cmd:
  - nmcli
  - connection
  - modify
  - ''
  - +ipv4.address
  - 192.168.168.1/24
  delta: '0:00:00.024310'
  end: '2019-10-24 16:17:09.794714'
  item: 192.168.168.1/24
  msg: non-zero return code
  rc: 10
  start: '2019-10-24 16:17:09.770404'
  stderr: 'Error: unknown connection ''''.'
  stderr_lines: <omitted>
  stdout: ''
  stdout_lines: <omitted>

Defining the nmcli_add_addrs_connection variable resolves the error.

[tehsmyers]

Out of curiousity, what does nmcli -f GENERAL.CONNECTION device show p5p1 say?

At the very least, the command that gets the connection name from and interface doesn't fail if no connection name is found, and it really should, but I'd love to see the nmcli output before jumping to any conclusions about what happened.