add mutex for prom transport

Makefile

@@ -2,7 +2,7 @@
 
 NOW = $(shell date -u '+%Y%m%d%I%M%S')
 
-RELEASE_VERSION = 5.8.0
+RELEASE_VERSION = 5.8.1
 
 APP 			= n9e
 SERVER_BIN  	= $(APP)

etc/webapi.conf

@@ -10,6 +10,12 @@ MetricsYamlFile = "./etc/metrics.yaml"
 BuiltinAlertsDir = "./etc/alerts"
 BuiltinDashboardsDir = "./etc/dashboards"
 
+# config | api
+ClustersFrom = "config"
+
+# using when ClustersFrom = "api"
+ClustersFromAPIs = []
+
 [[NotifyChannels]]
 Label = "邮箱"
 # do not change Key
@@ -172,14 +178,7 @@ BasicAuthUser = ""
 BasicAuthPass = ""
 # timeout settings, unit: ms
 Timeout = 30000
-DialTimeout = 10000
-TLSHandshakeTimeout = 30000
-ExpectContinueTimeout = 1000
-IdleConnTimeout = 90000
-# time duration, unit: ms
-KeepAlive = 30000
-MaxConnsPerHost = 0
-MaxIdleConns = 100
+DialTimeout = 3000
 MaxIdleConnsPerHost = 100
 
 [Ibex]

src/webapi/config/config.go

@@ -15,7 +15,6 @@ import (
 	"github.com/didi/nightingale/v5/src/pkg/oidcc"
 	"github.com/didi/nightingale/v5/src/pkg/ormx"
 	"github.com/didi/nightingale/v5/src/storage"
-	"github.com/didi/nightingale/v5/src/webapi/prom"
 )
 
 var (
@@ -82,6 +81,8 @@ type Config struct {
 	MetricsYamlFile      string
 	BuiltinAlertsDir     string
 	BuiltinDashboardsDir string
+	ClustersFrom         string
+	ClustersFromAPIs     []string
 	ContactKeys          []LabelAndKey
 	NotifyChannels       []LabelAndKey
 	Log                  logx.Config
@@ -91,12 +92,26 @@ type Config struct {
 	AnonymousAccess      AnonymousAccess
 	LDAP                 ldapx.LdapSection
 	Redis                storage.RedisConfig
-	DB                	 ormx.DBConfig
-	Clusters             []prom.Options
+	DB                   ormx.DBConfig
+	Clusters             []ClusterOptions
 	Ibex                 Ibex
 	OIDC                 oidcc.Config
 }
 
+type ClusterOptions struct {
+	Name string
+	Prom string
+
+	BasicAuthUser string
+	BasicAuthPass string
+
+	Timeout     int64
+	DialTimeout int64
+	KeepAlive   int64
+
+	MaxIdleConnsPerHost int
+}
+
 type LabelAndKey struct {
 	Label string `json:"label"`
 	Key   string `json:"key"`

src/webapi/prom/prom.go

@@ -3,55 +3,48 @@ package prom
 import (
 	"net"
 	"net/http"
+	"sync"
 	"time"
+
+	"github.com/didi/nightingale/v5/src/webapi/config"
 )
 
-type Options struct {
-	Name string
-	Prom string
-
-	BasicAuthUser string
-	BasicAuthPass string
-
-	Timeout               int64
-	DialTimeout           int64
-	TLSHandshakeTimeout   int64
-	ExpectContinueTimeout int64
-	IdleConnTimeout       int64
-	KeepAlive             int64
-
-	MaxConnsPerHost     int
-	MaxIdleConns        int
-	MaxIdleConnsPerHost int
-}
-
 type ClusterType struct {
-	Opts      Options
+	Opts      config.ClusterOptions
 	Transport *http.Transport
 }
 
 type ClustersType struct {
-	M map[string]ClusterType
-}
-
-func NewClusters() ClustersType {
-	return ClustersType{
-		M: make(map[string]ClusterType),
-	}
+	datas map[string]ClusterType
+	mutex *sync.RWMutex
 }
 
 func (cs *ClustersType) Put(name string, cluster ClusterType) {
-	cs.M[name] = cluster
+	cs.mutex.Lock()
+	cs.datas[name] = cluster
+	cs.mutex.Unlock()
 }
 
 func (cs *ClustersType) Get(name string) (ClusterType, bool) {
-	c, has := cs.M[name]
+	cs.mutex.RLock()
+	defer cs.mutex.RUnlock()
+
+	c, has := cs.datas[name]
 	return c, has
 }
 
-var Clusters = NewClusters()
+var Clusters = ClustersType{
+	datas: make(map[string]ClusterType),
+	mutex: new(sync.RWMutex),
+}
+
+func Init() error {
+	if config.C.ClustersFrom != "" && config.C.ClustersFrom != "config" {
+		return nil
+	}
+
+	opts := config.C.Clusters
 
-func Init(opts []Options) error {
 	for i := 0; i < len(opts); i++ {
 		cluster := ClusterType{
 			Opts: opts[i],
@@ -59,16 +52,10 @@ func Init(opts []Options) error {
 				// TLSClientConfig: tlsConfig,
 				Proxy: http.ProxyFromEnvironment,
 				DialContext: (&net.Dialer{
-					Timeout:   time.Duration(opts[i].DialTimeout) * time.Millisecond,
-					KeepAlive: time.Duration(opts[i].KeepAlive) * time.Millisecond,
+					Timeout: time.Duration(opts[i].DialTimeout) * time.Millisecond,
 				}).DialContext,
 				ResponseHeaderTimeout: time.Duration(opts[i].Timeout) * time.Millisecond,
-				TLSHandshakeTimeout:   time.Duration(opts[i].TLSHandshakeTimeout) * time.Millisecond,
-				ExpectContinueTimeout: time.Duration(opts[i].ExpectContinueTimeout) * time.Millisecond,
-				MaxConnsPerHost:       opts[i].MaxConnsPerHost,
-				MaxIdleConns:          opts[i].MaxIdleConns,
 				MaxIdleConnsPerHost:   opts[i].MaxIdleConnsPerHost,
-				IdleConnTimeout:       time.Duration(opts[i].IdleConnTimeout) * time.Millisecond,
 			},
 		}
 		Clusters.Put(opts[i].Name, cluster)

src/webapi/webapi.go

@@ -115,7 +115,7 @@ func (a Webapi) initialize() (func(), error) {
 	models.InitRoot()
 
 	// init prometheus proxy config
-	if err = prom.Init(config.C.Clusters); err != nil {
+	if err = prom.Init(); err != nil {
 		return nil, err
 	}