monitoring-8.x-1.x-dev/modules/prometheus/config/schema/monitoring_prometheus.schema.yml

monitoring_prometheus.settings:
  type: config_object
  label: 'Monitoring prometheus settings'
  mapping:
    allowed_ips:
      type: sequence
      label: 'Allowed prometheus ips'
      sequence:
        type: string
        label: 'Allowed prometheus ip'
    custom_labels:
      type: sequence
      label: 'Custom labels'
      sequence:
        type: string
        label: 'Custom label'