复制项目

pkg/common/prommetrics/prommetrics.go

@@ -0,0 +1,117 @@
+// Copyright © 2023 OpenIM. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// 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, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package prommetrics
+
+import (
+	"errors"
+	"fmt"
+	"net"
+	"net/http"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/collectors"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+)
+
+const commonPath = "/metrics"
+
+var registry = &prometheusRegistry{prometheus.NewRegistry()}
+
+type prometheusRegistry struct {
+	*prometheus.Registry
+}
+
+func (x *prometheusRegistry) MustRegister(cs ...prometheus.Collector) {
+	for _, c := range cs {
+		if err := x.Registry.Register(c); err != nil {
+			if errors.As(err, &prometheus.AlreadyRegisteredError{}) {
+				continue
+			}
+			panic(err)
+		}
+	}
+}
+
+func init() {
+	registry.MustRegister(
+		collectors.NewProcessCollector(collectors.ProcessCollectorOpts{}),
+		collectors.NewGoCollector(),
+	)
+}
+
+var (
+	baseCollector = []prometheus.Collector{
+		collectors.NewProcessCollector(collectors.ProcessCollectorOpts{}),
+		collectors.NewGoCollector(),
+	}
+)
+
+func Init(registry *prometheus.Registry, listener net.Listener, path string, handler http.Handler, cs ...prometheus.Collector) error {
+	registry.MustRegister(cs...)
+	srv := http.NewServeMux()
+	srv.Handle(path, handler)
+	return http.Serve(listener, srv)
+}
+
+func RegistryAll() {
+	RegistryApi()
+	RegistryAuth()
+	RegistryMsg()
+	RegistryMsgGateway()
+	RegistryPush()
+	RegistryUser()
+	RegistryRpc()
+	RegistryTransfer()
+}
+
+func Start(listener net.Listener) error {
+	srv := http.NewServeMux()
+	srv.Handle(commonPath, promhttp.HandlerFor(registry, promhttp.HandlerOpts{}))
+	return http.Serve(listener, srv)
+}
+
+const (
+	APIKeyName             = "api"
+	MessageTransferKeyName = "message-transfer"
+
+	TTL = 300
+)
+
+type Target struct {
+	Target string            `json:"target"`
+	Labels map[string]string `json:"labels"`
+}
+
+type RespTarget struct {
+	Targets []string          `json:"targets"`
+	Labels  map[string]string `json:"labels"`
+}
+
+func BuildDiscoveryKeyPrefix(name string) string {
+	return fmt.Sprintf("%s/%s/%s", "openim", "prometheus_discovery", name)
+}
+
+func BuildDiscoveryKey(name string, index int) string {
+	return fmt.Sprintf("%s/%s/%s/%d", "openim", "prometheus_discovery", name, index)
+}
+
+func BuildDefaultTarget(host string, ip int) Target {
+	return Target{
+		Target: fmt.Sprintf("%s:%d", host, ip),
+		Labels: map[string]string{
+			"namespace": "default",
+		},
+	}
+}