Not able to change filebeat index name running on Kubernetes

Elastic Stack Beats
3

Thanks @shaunak I was going to answer my own question. I found the answer some hours ago in the link: https://www.elastic.co/guide/en/beats/filebeat/current/ilm.html

The problem is about the ILM and to figure it out is necessary disable ILM in the filebeat setup.

Following my ConfigMap:

apiVersion: v1
kind: ConfigMap
metadata:
  name: filebeat-config
  namespace: monitoring
  labels:
    k8s-app: filebeat
data:
  filebeat.yml: |-
    setup.ilm.enabled: false
    filebeat.autodiscover:
      providers:
        - type: kubernetes
          node: ${NODE_NAME}
          hints.enabled: true
          hints.default_config:
            type: container
            paths:
              - /var/log/containers/*${data.kubernetes.container.id}.log
    
    processors:
      - add_cloud_metadata:
      - add_host_metadata:

    cloud.id: ${ELASTIC_CLOUD_ID}
    cloud.auth: ${ELASTIC_CLOUD_AUTH}

    setup.template.name: "filebeat-stg"
    setup.template.overwrite: true
    setup.template.enabled: true
    setup.template.pattern: "filebeat-stg-*"
    
    output.elasticsearch:
      hosts: ['${ELASTICSEARCH_HOST:elasticsearch}:${ELASTICSEARCH_PORT:9200}']
      index: "filebeat-stg-%{[agent.version]}-%{+yyyy.MM.dd}"