Event rule for VCN changes has notifications

resource "oci_events_rule" "<example_resource_name>" {
  compartment_id = var.compartment_id
  display_name   = "<example_resource_name>"
  is_enabled     = true

  # critical: monitor VCN create/delete/update events
  condition = jsonencode({
    eventType = [
      "com.oraclecloud.virtualnetwork.createvcn",
      "com.oraclecloud.virtualnetwork.deletevcn",
      "com.oraclecloud.virtualnetwork.updatevcn"
    ]
  })

  actions {
    actions {
      action_type = "ONS"         # critical: send notifications via OCI Notifications
      topic_id    = var.topic_id   # critical: target Notifications topic
    }
  }
}