relabel.river

prometheus.scrape "default" {
	targets    = [{"__address__" = "localhost:12345"}]
	forward_to = [prometheus.relabel.filter.receiver]
}

// The prometheus.relabel component allows you to filter and mutate metrics.
// Here, we combine the metric name (from the __name__ label) with the string 
// "api_server" into a new label called "service". The resulting mutated metrics
// are then forwarded to our prometheus.remote_write component.
prometheus.relabel "filter" {
	rule {
		source_labels = ["__name__"]
		regex         = "(.+)"
		replacement   = "api_server"
		target_label  = "service"
	}
	forward_to = [prometheus.remote_write.prom.receiver]
}

prometheus.remote_write "prom" {
	endpoint {
		url = "http://mimir:9009/api/v1/push"
	}
}