CODEWITHSUNDEEP
ansible
Anoop P Alias
Anoop P Alias

Reputation: 403

Ansible how to reference item in jinja2 template

I have a play as follows

    - name: create the unison preference file
      template:
      src: default.prf.j2
      dest: /root/.unison/{{ item }}.prf
      with_items: groups['ndeployslaves']

The contents of the default.prf.j2 file is as follows

    root = /home
    root = ssh://root@{{ item }}//home
    ignore = Path virtfs
    ignore = Path */mail

The item variable is not working in the template and I am getting the error

TASK [unison_master : create the unison prefrence file] ************************ fatal: [127.0.0.1]: FAILED! => {"failed": true, "msg": "'item' is undefined"}

How do I reference an item inside a template used in a play?

Upvotes: 2

Views: 3402

Answers (2)

Anoop P Alias
Anoop P Alias

Reputation: 403

The error was caused by an indentation error.
The with_items: groups['ndeployslaves'] was indented a level deeper than it should have.

Upvotes: 1

MillerGeek
MillerGeek

Reputation: 3137

Since it's not letting you use {{item}} in the template, you could do this:

- name: create the unison preference file
  copy:
    src: default.prf
    dest: "/root/.unison/{{ item }}.prf"
    force: no
  with_items: "{{ groups['ndeployslaves'] }}"

- name: edit preference file
  lineinfile:
    dest: "/root/.unison/{{ item }}.prf"
    line: "root = ssh://root@{{item}}//home"
    regexp: '^root = ssh://'
  with_items: "{{ groups['ndeployslaves'] }}"

The contents of default.prf on your local host should be:

root = /home
root = ssh://
ignore = Path virtfs
ignore = Path */mail

However I have {{item}} working in a template. Are you sure your whitespace is correct? src and dest need to be indented one level deeper than template, but with_items needs to be on the same level as template.

- name: create the unison preference file
  template:
    src: default.prf.j2
    dest: "/root/.unison/{{ item }}.prf"
  with_items: "{{ groups['ndeployslaves'] }}"

Upvotes: 1

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