ansible iterate through dictionary-CodePudding

How to interate through this dictionary? If vrf is default than print proc name. If vrf is other than defaul than print proc name and vrf name

 proc-vrf: [{'proc': 'T1', 'vrf': 'default'}, {'proc': 'T2', 'vrf': 'vrf_T2'},, {'proc': 'T3', 'vrf': 'default'}, {'proc': 'T3', 'vrf': 'vrf_T3'}]

I tried following:

- name: Display output...
  debug:
    msg: "{{ item.key }} - {{ item.value }}"
  loop: "{{ proc-vrf | dict2items }}"

I am getting following error:

ERROR! 'item' is undefined

CodePudding user response：

Thank you for the additional information, the question looks better.

As in this case the variable is a list of dictionaries, replace the loop: with

- name: Display output...
  debug:
    msg: "{{ item.proc }} - {{ item.vrf }}"
  with_items: "{{ proc-vrf }}"

CodePudding user response：

After addressing the variable name because of

ERROR! Invalid variable name in vars specified for Play: 'proc-vrf' is not a valid variable name

and its content

diff <( echo 'proc-vrf: [{'proc': 'T1', 'vrf': 'default'}, {'proc': 'T2', 'vrf': 'vrf_T2'},, {'proc': 'T3', 'vrf': 'default'}, {'proc': 'T3', 'vrf': 'vrf_T3'}]' ) <( echo 'proc_vrf: [{'proc': 'T1', 'vrf': 'default'}, {'proc': 'T2', 'vrf': 'vrf_T2'}, {'proc': 'T3', 'vrf': 'default'}, {'proc': 'T3', 'vrf': 'vrf_T3'}]' )
1c1
< proc-vrf: [{proc: T1, vrf: default}, {proc: T2, vrf: vrf_T2},, {proc: T3, vrf: default}, {proc: T3, vrf: vrf_T3}]
---
> proc_vrf: [{proc: T1, vrf: default}, {proc: T2, vrf: vrf_T2}, {proc: T3, vrf: default}, {proc: T3, vrf: vrf_T3}]

a sample playbook like

---
- hosts: localhost
  become: false
  gather_facts: false

  vars:

    proc_vrf: [{'proc': 'T1', 'vrf': 'default'}, {'proc': 'T2', 'vrf': 'vrf_T2'}, {'proc': 'T3', 'vrf': 'default'}, {'proc': 'T3', 'vrf': 'vrf_T3'}]

  tasks:

  - name: Display output...
    debug:
      msg: "{{ item.proc }} - {{ item.vrf }}"
    loop: "{{ proc_vrf }}"

will result into an output of

TASK [Display output...] ****************************************
ok: [localhost] => (item={u'proc': u'T1', u'vrf': u'default'}) =>
  msg: T1 - default
ok: [localhost] => (item={u'proc': u'T2', u'vrf': u'vrf_T2'}) =>
  msg: T2 - vrf_T2
ok: [localhost] => (item={u'proc': u'T3', u'vrf': u'default'}) =>
  msg: T3 - default
ok: [localhost] => (item={u'proc': u'T3', u'vrf': u'vrf_T3'}) =>
  msg: T3 - vrf_T3

Further Documentation

Creating valid variable names

Not all strings are valid Ansible variable names. A variable name can only include letters, numbers, and underscores.

CodePudding user response：

name: Display output... debug: msg: "{{ item.proc }} - {{ item.vrf }}" loop: "{{ proc_vrf }}"