How to add host to group in Ansible Tower inventory?

Question

How can I add a host to a group using tower_group or tower_host modules?

The following code creates a host and a group, but they are unrelated to each other:

---
- hosts: localhost
  connection: local
  gather_facts: false

  tasks:
    - tower_inventory:
        name: My Inventory
        organization: Default
        state: present
        tower_config_file: "~/tower_cli.cfg"

    - tower_host:
        name: myhost
        inventory: My Inventory
        state: present
        tower_config_file: "~/tower_cli.cfg"

    - tower_group:
        name: mygroup
        inventory: My Inventory
        state: present
        tower_config_file: "~/tower_cli.cfg"

Docs mention instance_filters parameter ("Comma-separated list of filter expressions for matching hosts."), however do not provide any usage example.

Adding instance_filters: myhost to the tower_group task has no effect.

Answer 1

I solved it using Ansible shell module and tower-cli. I Know that create a ansible module is better than it, but to a fast solution...

- hosts: awx
  vars:
  tasks: 
   - name: Create Inventory
     tower_inventory:
       name: "Foo Inventory"
       description: "Our Foo Cloud Servers"
       organization: "Default"
       state: present
   - name: Create Group
     tower_group: 
       inventory: "Foo Inventory" 
       name:  Testes 
     register: fs_group 
   - name: Create Host
     tower_host:
       inventory: "Foo Inventory" 
       name: "host"  
     register: fs_host 
   - name: Associate host group 
     shell: tower-cli host associate  --host "{{fs_host.id}}" --group "> {{fs_group.id}}"