awx.awx.group option preserve hosts fails when there are no hosts.

[sean-m-sullivan]

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• I understand that AWX is open source software provided for free and that I might not receive a timely response.

Summary

when using awx.awx.groups the preserve hosts/groups options fails if there are no groups/hosts.

AWX version

19.4.0

Select the relevant components

• UI
• API
• Docs

Installation method

minikube

Modifications

no

Ansible version

No response

Operating system

No response

Web browser

No response

Steps to reproduce

    - name: Add host to temporary group for new vms
      awx.awx.group:
        name: new_vms
        inventory: "Temporary Inventory"
        hosts:
          - "{{ name }}"
        validate_certs: false
        preserve_existing_hosts: True
      when:
        - use_aap_inventory
        - vm is succeeded

Expected results

It runs and adds the host to the empty group

Actual results

TypeError: 'NoneType' object is not subscriptabl

Additional information

Because This line returns NoneType when there are no hosts in the group.

module needs to be updated to fix this issue.

[ikke-t]

Thanks for creating the issue. I verified now that the task works if I have the group and an existing host in the group.

So some error while doing it for a totally new group.

[ikke-t]

it works if the group is there but empty

[ikke-t]

so it fails only in the first ever run: there is no group.

[ikke-t]

just for reference, here are the steps after creating the vm

        - name: Create tower inventory
          awx.awx.inventory:
            name: "Temporary Inventory"
            description: "Temporary inventory for hosts to be created"
            organization: "Default"
            state: present
            validate_certs: false
          when:
            - use_aap_inventory
            - vm is succeeded

        - name: Add tower host
          awx.awx.host:
            name: "{{ vm_name }}"
            inventory: "Temporary Inventory"
            state: present
            validate_certs: false
            variables:
              ansible_host: "{{ vm.instance.ipv4 }}"
          when:
            - use_aap_inventory
            - vm is succeeded

        - name: Add host to temporary group for new vms
          awx.awx.group:
            name: new_vms
            inventory: "Temporary Inventory"
            hosts:
              - "{{ vm_name }}"
            validate_certs: false
            preserve_existing_hosts: True
          when:
            - use_aap_inventory
            - vm is succeeded