Getting syntax error

[Ramu Mathi]

I am getting the following the error with my config

ERROR! The field 'hosts' has an invalid value, which includes an undefined variable. The error was: list object has no element 0

The error appears to be in '/Users/ramumathi/Desktop/workspace/RMQ/ansible-rmq-ha/playbook.yml': line 91, column 3, but may

be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:

- hosts: "{{ groups['all'][0] }}"

  ^ 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 }}"

 ansible-playbook --version

ansible-playbook 2.8.1

  python version = 2.7.16 (default, Dec 13 2019, 18:00:32) [GCC 4.2.1 Compatible Apple LLVM 11.0.0 (clang-1100.0.32.4) (-macos10.15-objc-s

Can you please let me know why I am getting this error.

Thanks,

Ramu.

[Kundan Singh]

Hi ,

There is a syntax issue in the jinja2 template

When you are defining hosts there should be space in variable mention in the line

Synatx should appear like below

hosts: "{{ abc }}"

Regards 

Kundan singh

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[Ramu Mathi]

Hi Singh, This is my configuration and it invokes the below tasks. - hosts: "{{ groups['all'][0] }}"
	gather_facts: no
	become: true
	vars_files:
	-
	roles:
	- { role: *****/*, tags: ['******'] } --------------------------------------------------- - name: add vhosts shell: "docker exec rmq-ha rabbitmqctl add_vhost {{ item.name }}" with_items: "{{ ******* }}" ignore_errors: true - name: add users shell: "docker exec rmq-ha rabbitmqctl add_user {{ item.name }} {{ item.password }}" with_items: "{{ ******* }}" ignore_errors: true tags: - ******* - name: change users passwords shell: "docker exec rmq-ha rabbitmqctl change_password {{ item.name }} {{ item.password }}" with_items: "{{ ******* }}" ignore_errors: true tags: - ******* - name: add user tags shell: "docker exec rmq-ha rabbitmqctl set_user_tags {{ item.name }} {{ item.tags }}" with_items: "{{ ******* }}" ignore_errors: true tags: - ******* Now I am getting that error, where we need to add that double quote? Thanks, Ramu.

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[Kundan Singh]

As per my understanding roles will not require and specific tags

-  hosts: "{{ groups['all'][0] }}"

   gather_facts: no

    become: true

 

    vars_files:

         - 

     roles:

         -   abc

      Or

          - "{{ and role name }}"

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[Ramu Mathi]

Singh, We need roles here and we are calling the same way for others and they are working well.  Only for this host configuration I am getting that error. Can we deep debug on this?

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[Ramu Mathi]

Any update on this? Please let me know. I need your help.