internal/satellite/telemetry/config.go

// Licensed to Apache Software Foundation (ASF) under one or more contributor
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// this work for additional information regarding copyright
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// the Apache License, Version 2.0 (the "License"); you may
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// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
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// specific language governing permissions and limitations
// under the License.

package telemetry

import "github.com/prometheus/client_golang/prometheus"

// Config defines the common telemetry labels.
type Config struct {
	Cluster  string `mapstructure:"cluster"`  // The cluster name.
	Service  string `mapstructure:"service"`  // The service name.
	Instance string `mapstructure:"instance"` // The instance name.
}

// Init create the global telemetry center according to the config.
func Init(c *Config) {
	labels := make(map[string]string)
	if c.Service != "" {
		labels["service"] = c.Service
	}
	if c.Cluster != "" {
		labels["cluster"] = c.Cluster
	}
	if c.Instance != "" {
		labels["instance"] = c.Instance
	}
	registry = prometheus.NewRegistry()
	registerer = prometheus.WrapRegistererWith(labels, registry)
	Gatherer = registry
	collectorContainer = make(map[string]Collector)
}