With Ansible, I want to find which port is available in a range on a K8s cluster and use this port to expose a service temporary.

I'm able to find and extract the port but when I'm declaring the Nodeport using that port the tasks fail.

It seems that ansible is not converting my "port" variable to an int with the instruction {{ port|int }}.

- block:
    - name: List all ports in range 32200 to 32220
      wait_for:
        port: "{{ item|int }}"
        timeout: 1
        state: stopped
        msg: "Port {{ item }} is already in use"
      register: available_ports
      with_sequence: start=32200 end=32220
      ignore_errors: yes

    - name: extract first unused port from list
      set_fact:
        port: "{{ available_ports.results | json_query(\"[? state=='stopped'].port\") | first }}"
    
- debug:
        var: port
    
- name: Expose service as a nodeport service
  k8s:
    state: present
    definition:
      apiVersion: v1
      kind: Service
      metadata:
        name: "{{ namespace }}-service-nodeport"
        namespace: "{{ namespace }}"
      spec:
        type: NodePort
        selector:
          component: my-app
        ports:
          - protocol: TCP
            targetPort: 5432
            nodePort: "{{ port|int }}"
            port: 5432

This outputs the following:

TASK [../roles/my-role : debug] ***************************************************************************************************************************************************************************************************
ok: [127.0.0.1] => {
    "port": "32380"
}

TASK [../roles/my-role : Expose service as a nodeport service] *******************************************************************************************************************************************
fatal: [127.0.0.1]: FAILED! => {"changed": false, "error": 400, "msg": "Failed to create object: b'{\"kind\":\"Status\",\"apiVersion\":\"v1\",\"metadata\":{},\"status\":\"Failure\",\"message\":\"Service in version \\\\\"v1\\\\\" cannot be handled as a Service: v1.Service.Spec: v1.ServiceSpec.Ports: []v1.ServicePort: v1.ServicePort.NodePort: readUint32: unexpected character: \\\\ufffd, error found in #10 byte of ...|dePort\\\\\": \\\\\"32380\\\\\", \\\\\"p|..., bigger context ...|rotocol\\\\\": \\\\\"TCP\\\\\", \\\\\"targetPort\\\\\": 5432, \\\\\"nodePort\\\\\": \\\\\"32380\\\\\", \\\\\"port\\\\\": 5432}]}}|...\",\"reason\":\"BadRequest\",\"code\":400}\\n'", "reason": "Bad Request", "status": 400}

If I set the nodeport to a fix value such as 32800, it works.