Exit playbook and return an error

[Colm Mcnabola]

Hi,

I want to insert an failure on my playbook where if the hostgroup isnt in the inventory, it fails. 

Inventory path is 

inventory/"environment_name"/inventory

and looks similiar to this 

[NodeGroup1]
node1@node

[NodeGroup2]

node2@node.

node3@node.

When running a playbook using --extra vars and declaring the name of the host group like so 

ansible-playbook deploy_rpm.yml -i environment/testEnv --extra-vars='{"hostgroup": "NodeGroup1", "var1": "test-rpm", "version": "0.1"}'

It passes as NodeGroup1 is in the inventory

When the hostgroup is named wrong, 'NodeGroup999' for example.

ansible-playbook deploy_rpm.yml -i environment/testEnv --extra-vars='{"hostgroup": "NodeGroup999", "var1": "test-rpm", "version": "0.1"}'

It just silently fails but doesnt return an error message or stop. 

I have added this in as a task but it doesnt seem to like it. 

  - name: "Grep inventory to check hostgroup exists."

      fail: msg:="Hostgroup '{{ hostgroup }}' is not defined"

      when:

        - inventory_hostname in groups['hostgroup']|default([]) 

How can i improve this task to stop the playbook and return a failure? Is it best to put the path of the inventory files inside the 'when' part of the task? 

[Kai Stian Olstad]

I think you only option is to add the following play on top of your
playbook.

- hosts: localhost
gather_facts: no
become: no
tasks:
- fail:
msg: Hostgroup '{{ hostgroup }}' is not defined
when: hostgroup not in groups


--
Kai Stian Olstad

[Colm Mcnabola]

Is this possible to do the script locally and then still be able to connect to hosts in a later stage of the same playbook?

for example 

task: 

      - name: local run of script against inventory

 

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[Kai Stian Olstad]

On 11.10.2017 11:16, 'Colm Mcnabola' via Ansible Project wrote:
> Is this possible to do the script locally and then still be able to
> connect
> to hosts in a later stage of the same playbook?
>
> for example
>
> task:
> - name: local run of script against inventory

Yes, the play I posted has "- hosts: localhost", meaning it will run on
the Ansible controller.
If this play fails, it's will not run subsequent plays in the playbook.

The subsequent play can therefore have - hosts: "{{ hostgroup }}"


--
Kai Stian Olstad