jinja in task (template)

[vu001]

Hi to all, 

I have problem with evaluating jinja2 code in task (template)

This is playbook for test, just to see If I get what I want

---

- name: Demo of with_nested

  hosts: host1

  vars:

     FS_LIST:

        member1:

          FS: "/tmp/f1/dev"

          config_files: ["config1.xml","config2.xml"]

        member2:

          FS: "/tmp/f2/dev"

          config_files: ["config1.xml"]

  tasks:

    - name: Printing message

      debug: msg=" {% for i in item.config_files %} Values are {{item.FS}} and {{i}}\n{% endfor %} "

      with_items:

        - "{{FS_LIST.values()}}"

and it prints mi all permutation as I wish

            "msg": "  Values are /tmp/f1/dev and config1.xml\n Values are /tmp/f1/dev and config2.xml\n "

            "msg": "  Values are /tmp/f2/dev and config1.xml\n "

So i tried to implement this logic to template:

This template is just to check syntax:

---

- name: Demo of with_nested

  hosts: host1

  vars:

     FS_LIST:

        member1:

          FS: "/tmp/f1/dev"

          config_files: ["config1.xml","config2.xml"]

        member2:

          FS: "/tmp/f2/dev"

          config_files: ["config1.xml"]

  tasks:

    - name: Printing message

      template: src=/tmp/config1.xml.j2 dest={{item.FS}}/config1.xml

      with_items:

        - "{{FS_LIST.values()}}"

BUT

When i tried to do this:

---

- name: Demo of with_nested

  hosts: host1

  vars:

     FS_LIST:

        member1:

          FS: "/tmp/f1/dev"

          config_files: ["config1.xml","config2.xml"]

        member2:

          FS: "/tmp/f2/dev"

          config_files: ["config1.xml"]

  tasks:

    - name: Printing message

      template: {% for i in item.config_files %} src={{i}}.j2 dest={{item.FS}}/{{i}} {% endfor %}

      with_items:

        - "{{FS_LIST.values()}}"

I got error:

The offending line appears to be:

    - name: Printing message

      template: {% for i in item.config_files %} src={{i}}.j2 dest={{item.FS}}/{{i}} {% endfor %}

                 ^ here

We could be wrong, but this one looks like it might be an issue with

missing quotes.  Always quote template expression brackets when they

start a value. For instance:

    with_items:

      - {{ foo }}

Should be written as:

    with_items:

      - "{{ foo }}"

Any idea...thanks a lot...

[Greg Langford]

Where you are defining the template task you should put double quotes round the jina code

e.g "{% for i in item.config_files %} src={{i}}.j2 dest={{item.FS}}/{{i}} {% endfor %}" otherwise the jinja syntax will not be evaluated.

I have however never used a for loop in this fashion so no idea if that will work, I would be interested to hear if it does.

Kind Regards

[vu001]

I tried that also...but got error:

fatal: [host1]: FAILED! => {"failed": true, "msg": "the field 'args' has an invalid value, which appears to include a variable that is undefined. The error was: 'i' is undefined\n\nThe error appears to have been in '/etc/ansible/template_jinja_eval2.yml': line 11, column 7, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n  tasks:\n    - name: Printing message\n      ^ here\n"}