反向代理源站实现使用域名分组

pkg/configutils/domain.go

@@ -6,7 +6,7 @@ import (
 	"strings"
 )
 
-// 从一组规则中匹配域名
+// MatchDomains 从一组规则中匹配域名
 // 支持的格式：example.com, www.example.com, .example.com, *.example.com, ~(\d+).example.com
 // 更多参考：http://nginx.org/en/docs/http/ngx_http_core_module.html#server_name
 func MatchDomains(patterns []string, domain string) (isMatched bool) {
@@ -14,19 +14,23 @@ func MatchDomains(patterns []string, domain string) (isMatched bool) {
 		return
 	}
 	for _, pattern := range patterns {
-		if matchDomain(pattern, domain) {
+		if MatchDomain(pattern, domain) {
 			return true
 		}
 	}
 	return
 }
 
-// 匹配单个域名规则
+// MatchDomain 匹配单个域名规则
-func matchDomain(pattern string, domain string) (isMatched bool) {
+func MatchDomain(pattern string, domain string) (isMatched bool) {
 	if len(pattern) == 0 {
 		return
 	}
 
+	if pattern == "*" {
+		return true
+	}
+
 	// 正则表达式
 	if pattern[0] == '~' {
 		reg, err := stringutil.RegexpCompile(strings.TrimSpace(pattern[1:]))

pkg/configutils/domain_test.go

@@ -76,4 +76,8 @@ func TestMatchDomain(t *testing.T) {
 		ok := MatchDomains([]string{"~^\\d+.example.com$"}, "123.example.com")
 		a.IsTrue(ok)
 	}
+	{
+		ok := MatchDomains([]string{"*"}, "example.com")
+		a.IsTrue(ok)
+	}
 }

pkg/rpc/pb/model_origin.pb.go

@@ -35,6 +35,7 @@ type Origin struct {
 	Name        string          `protobuf:"bytes,3,opt,name=name,proto3" json:"name,omitempty"`
 	Addr        *NetworkAddress `protobuf:"bytes,4,opt,name=addr,proto3" json:"addr,omitempty"`
 	Description string          `protobuf:"bytes,5,opt,name=description,proto3" json:"description,omitempty"`
+	Domains     []string        `protobuf:"bytes,6,rep,name=domains,proto3" json:"domains,omitempty"`
 }
 
 func (x *Origin) Reset() {
@@ -104,6 +105,13 @@ func (x *Origin) GetDescription() string {
 	return ""
 }
 
+func (x *Origin) GetDomains() []string {
+	if x != nil {
+		return x.Domains
+	}
+	return nil
+}
+
 var File_models_model_origin_proto protoreflect.FileDescriptor
 
 var file_models_model_origin_proto_rawDesc = []byte{
@@ -111,7 +119,7 @@ var file_models_model_origin_proto_rawDesc = []byte{
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@@ -120,7 +128,9 @@ var file_models_model_origin_proto_rawDesc = []byte{
 	0x6b, 0x41, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x52, 0x04, 0x61, 0x64, 0x64, 0x72, 0x12, 0x20,
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+	0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

pkg/rpc/pb/service_origin.pb.go

@@ -45,6 +45,7 @@ type CreateOriginRequest struct {
 	IdleTimeoutJSON []byte          `protobuf:"bytes,8,opt,name=idleTimeoutJSON,proto3" json:"idleTimeoutJSON,omitempty"`
 	MaxConns        int32           `protobuf:"varint,9,opt,name=maxConns,proto3" json:"maxConns,omitempty"`
 	MaxIdleConns    int32           `protobuf:"varint,10,opt,name=maxIdleConns,proto3" json:"maxIdleConns,omitempty"`
+	Domains         []string        `protobuf:"bytes,11,rep,name=domains,proto3" json:"domains,omitempty"`
 }
 
 func (x *CreateOriginRequest) Reset() {
@@ -149,6 +150,13 @@ func (x *CreateOriginRequest) GetMaxIdleConns() int32 {
 	return 0
 }
 
+func (x *CreateOriginRequest) GetDomains() []string {
+	if x != nil {
+		return x.Domains
+	}
+	return nil
+}
+
 type CreateOriginResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -213,6 +221,7 @@ type UpdateOriginRequest struct {
 	IdleTimeoutJSON []byte          `protobuf:"bytes,9,opt,name=idleTimeoutJSON,proto3" json:"idleTimeoutJSON,omitempty"`
 	MaxConns        int32           `protobuf:"varint,10,opt,name=maxConns,proto3" json:"maxConns,omitempty"`
 	MaxIdleConns    int32           `protobuf:"varint,11,opt,name=maxIdleConns,proto3" json:"maxIdleConns,omitempty"`
+	Domains         []string        `protobuf:"bytes,12,rep,name=domains,proto3" json:"domains,omitempty"`
 }
 
 func (x *UpdateOriginRequest) Reset() {
@@ -324,6 +333,13 @@ func (x *UpdateOriginRequest) GetMaxIdleConns() int32 {
 	return 0
 }
 
+func (x *UpdateOriginRequest) GetDomains() []string {
+	if x != nil {
+		return x.Domains
+	}
+	return nil
+}
+
 // 查找单个源站信息
 type FindEnabledOriginRequest struct {
 	state         protoimpl.MessageState
@@ -524,7 +540,7 @@ var file_service_origin_proto_rawDesc = []byte{
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@@ -546,71 +562,74 @@ var file_service_origin_proto_rawDesc = []byte{
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+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

pkg/rpc/protos/models/model_origin.proto

@@ -11,4 +11,5 @@ message Origin {
 	string name = 3;
 	NetworkAddress addr = 4;
 	string description = 5;
+	repeated string domains = 6;
 }

pkg/rpc/protos/service_origin.proto

@@ -33,6 +33,7 @@ message CreateOriginRequest {
 	bytes idleTimeoutJSON = 8;
 	int32 maxConns = 9;
 	int32 maxIdleConns = 10;
+	repeated string domains = 11;
 }
 
 message CreateOriginResponse {
@@ -52,6 +53,7 @@ message UpdateOriginRequest {
 	bytes idleTimeoutJSON = 9;
 	int32 maxConns = 10;
 	int32 maxIdleConns = 11;
+	repeated string domains = 12;
 }
 
 // 查找单个源站信息

pkg/serverconfigs/origin_config.go

@@ -28,6 +28,8 @@ type OriginConfig struct {
 	MaxConns     int                  `yaml:"maxConns" json:"maxConns"`       // 最大并发连接数
 	MaxIdleConns int                  `yaml:"idleConns" json:"idleConns"`     // 最大空闲连接数
 
+	Domains []string `yaml:"domains" json:"domains"` // 所属域名
+
 	StripPrefix string `yaml:"stripPrefix" json:"stripPrefix"` // 去除URL前缀
 	RequestURI  string `yaml:"requestURI" json:"requestURI"`   // 转发后的请求URI TODO
 	RequestHost string `yaml:"requestHost" json:"requestHost"` // 自定义主机名 TODO

pkg/serverconfigs/reverse_proxy_config.go

@@ -2,7 +2,6 @@ package serverconfigs
 
 import (
 	"github.com/TeaOSLab/EdgeCommon/pkg/configutils"
-	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/schedulingconfigs"
 	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/shared"
 	"github.com/iwind/TeaGo/lists"
 	"sync"
@@ -45,11 +44,8 @@ type ReverseProxyConfig struct {
 	requestHostHasVariables bool
 	requestURIHasVariables  bool
 
-	hasPrimaryOrigins  bool
+	schedulingGroupMap map[string]*SchedulingGroup // domain => *SchedulingGroup
-	hasBackupOrigins   bool
+	schedulingLocker   sync.RWMutex
-	schedulingIsBackup bool
-	schedulingObject   schedulingconfigs.SchedulingInterface
-	schedulingLocker   sync.Mutex
 
 	addXRealIPHeader         bool
 	addXForwardedForHeader   bool
@@ -64,9 +60,68 @@ func (this *ReverseProxyConfig) Init() error {
 	this.requestHostHasVariables = configutils.HasVariables(this.RequestHost)
 	this.requestURIHasVariables = configutils.HasVariables(this.RequestURI)
 
-	this.hasPrimaryOrigins = len(this.PrimaryOrigins) > 0
+	// 将源站分组
-	this.hasBackupOrigins = len(this.BackupOrigins) > 0
+	this.schedulingGroupMap = map[string]*SchedulingGroup{}
+	for _, origin := range this.PrimaryOrigins {
+		if len(origin.Domains) == 0 {
+			group, ok := this.schedulingGroupMap[""]
+			if !ok {
+				group = &SchedulingGroup{}
+				if this.Scheduling != nil {
+					group.Scheduling = this.Scheduling.Clone()
+				}
+				this.schedulingGroupMap[""] = group
+			}
+			group.PrimaryOrigins = append(group.PrimaryOrigins, origin)
+		} else {
+			for _, domain := range origin.Domains {
+				group, ok := this.schedulingGroupMap[domain]
+				if !ok {
+					group = &SchedulingGroup{}
+					if this.Scheduling != nil {
+						group.Scheduling = this.Scheduling.Clone()
+					}
+					this.schedulingGroupMap[domain] = group
+				}
+				group.PrimaryOrigins = append(group.PrimaryOrigins, origin)
+			}
+		}
+	}
+	for _, origin := range this.BackupOrigins {
+		if len(origin.Domains) == 0 {
+			group, ok := this.schedulingGroupMap[""]
+			if !ok {
+				group = &SchedulingGroup{}
+				if this.Scheduling != nil {
+					group.Scheduling = this.Scheduling.Clone()
+				}
+				this.schedulingGroupMap[""] = group
+			}
+			group.BackupOrigins = append(group.BackupOrigins, origin)
+		} else {
+			for _, domain := range origin.Domains {
+				group, ok := this.schedulingGroupMap[domain]
+				if !ok {
+					group = &SchedulingGroup{}
+					if this.Scheduling != nil {
+						group.Scheduling = this.Scheduling.Clone()
+					}
+					this.schedulingGroupMap[domain] = group
+				}
+				group.BackupOrigins = append(group.BackupOrigins, origin)
+			}
+		}
+	}
 
+	// 初始化分组
+	for _, group := range this.schedulingGroupMap {
+		err := group.Init()
+		if err != nil {
+			return err
+		}
+	}
+
+	// 初始化Origin
 	for _, origins := range [][]*OriginConfig{this.PrimaryOrigins, this.BackupOrigins} {
 		for _, origin := range origins {
 			// 覆盖参数设置
@@ -131,54 +186,39 @@ func (this *ReverseProxyConfig) AddBackupOrigin(origin *OriginConfig) {
 
 // NextOrigin 取得下一个可用的后端服务
 func (this *ReverseProxyConfig) NextOrigin(call *shared.RequestCall) *OriginConfig {
-	this.schedulingLocker.Lock()
+	this.schedulingLocker.RLock()
-	defer this.schedulingLocker.Unlock()
+	defer this.schedulingLocker.RUnlock()
 
-	if this.schedulingObject == nil {
+	if len(this.schedulingGroupMap) == 0 {
 		return nil
 	}
 
-	if this.Scheduling != nil && call != nil && call.Options != nil {
+	// 空域名
-		for k, v := range this.Scheduling.Options {
+	if len(call.Domain) == 0 {
-			call.Options[k] = v
+		group, ok := this.schedulingGroupMap[""]
+		if ok {
+			return group.NextOrigin(call)
 		}
+		return nil
 	}
 
-	candidate := this.schedulingObject.Next(call)
+	// 按域名匹配
-
+	for domainPattern, group := range this.schedulingGroupMap {
-	// 末了重置状态
+		if len(domainPattern) > 0 && configutils.MatchDomain(domainPattern, call.Domain) {
-	defer func() {
+			origin := group.NextOrigin(call)
-		if candidate == nil {
+			if origin != nil {
-			this.schedulingIsBackup = false
+				return origin
-		}
-	}()
-
-	if candidate == nil {
-		// 启用备用服务器
-		if !this.schedulingIsBackup {
-			this.SetupScheduling(true, true, false)
-			candidate = this.schedulingObject.Next(call)
-			if candidate == nil {
-				// 不检查主要源站
-				this.SetupScheduling(false, false, false)
-				candidate = this.schedulingObject.Next(call)
-				if candidate == nil {
-					// 不检查备用源站
-					this.SetupScheduling(true, false, false)
-					candidate = this.schedulingObject.Next(call)
-					if candidate == nil {
-						return nil
-					}
-				}
 			}
 		}
-
-		if candidate == nil {
-			return nil
-		}
 	}
 
-	return candidate.(*OriginConfig)
+	// 再次查找没有设置域名的分组
+	group, ok := this.schedulingGroupMap[""]
+	if ok {
+		return group.NextOrigin(call)
+	}
+
+	return nil
 }
 
 // SetupScheduling 设置调度算法
@@ -188,40 +228,9 @@ func (this *ReverseProxyConfig) SetupScheduling(isBackup bool, checkOk bool, loc
 		defer this.schedulingLocker.Unlock()
 	}
 
-	this.schedulingIsBackup = isBackup
+	for _, group := range this.schedulingGroupMap {
-
+		group.SetupScheduling(isBackup, checkOk)
-	if this.Scheduling == nil {
-		this.schedulingObject = &schedulingconfigs.RandomScheduling{}
-	} else {
-		typeCode := this.Scheduling.Code
-		s := schedulingconfigs.FindSchedulingType(typeCode)
-		if s == nil {
-			this.Scheduling = nil
-			this.schedulingObject = &schedulingconfigs.RandomScheduling{}
-		} else {
-			this.schedulingObject = s["instance"].(schedulingconfigs.SchedulingInterface)
-		}
 	}
-
-	if !isBackup {
-		for _, origin := range this.PrimaryOrigins {
-			if origin.IsOn && (origin.IsOk || !checkOk) {
-				this.schedulingObject.Add(origin)
-			}
-		}
-	} else {
-		for _, origin := range this.BackupOrigins {
-			if origin.IsOn && (origin.IsOk || !checkOk) {
-				this.schedulingObject.Add(origin)
-			}
-		}
-	}
-
-	if !this.schedulingObject.HasCandidates() {
-		return
-	}
-
-	this.schedulingObject.Start()
 }
 
 // FindSchedulingConfig 获取调度配置对象

pkg/serverconfigs/reverse_proxy_config_test.go

@@ -0,0 +1,60 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package serverconfigs
+
+import (
+	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/shared"
+	"testing"
+)
+
+func TestReverseProxyConfig_Init(t *testing.T) {
+	var config = &ReverseProxyConfig{}
+	config.Scheduling = &SchedulingConfig{
+		Code:    "random",
+		Options: nil,
+	}
+	config.AddPrimaryOrigin(&OriginConfig{
+		Addr: &NetworkAddressConfig{Host: "127.0.0.1"},
+		IsOn: true,
+	})
+	config.AddPrimaryOrigin(&OriginConfig{
+		Addr: &NetworkAddressConfig{Host: "127.0.0.2"},
+		IsOn: true,
+	})
+	config.AddPrimaryOrigin(&OriginConfig{
+		Addr:    &NetworkAddressConfig{Host: "127.0.0.3"},
+		Domains: []string{"*.www.example.com", ".example.com"},
+		IsOn:    true,
+	})
+	config.AddBackupOrigin(&OriginConfig{
+		Addr: &NetworkAddressConfig{Host: "127.0.0.4"},
+		IsOn: true,
+	})
+	err := config.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+	for domain, group := range config.schedulingGroupMap {
+		for _, origin := range group.PrimaryOrigins {
+			t.Log(domain, "primary", origin.Addr.Host)
+		}
+		for _, origin := range group.BackupOrigins {
+			t.Log(domain, "backup", origin.Addr.Host)
+		}
+	}
+
+	//config.ResetScheduling()
+
+	nextOrigin := config.NextOrigin(&shared.RequestCall{
+		Formatter:         nil,
+		Request:           nil,
+		Domain:            "a.example.com",
+		ResponseCallbacks: nil,
+		Options:           nil,
+	})
+	if nextOrigin == nil {
+		t.Log("not found")
+	} else {
+		t.Log("result:", nextOrigin.Addr.Host)
+	}
+}

pkg/serverconfigs/scheduling_config.go

@@ -2,13 +2,21 @@ package serverconfigs
 
 import "github.com/iwind/TeaGo/maps"
 
-// 调度算法配置
+// SchedulingConfig 调度算法配置
 type SchedulingConfig struct {
 	Code    string   `yaml:"code" json:"code"`       // 类型
 	Options maps.Map `yaml:"options" json:"options"` // 选项
 }
 
-// 获取新对象
+// NewSchedulingConfig 获取新对象
 func NewSchedulingConfig() *SchedulingConfig {
 	return &SchedulingConfig{}
 }
+
+// Clone 克隆
+func (this *SchedulingConfig) Clone() *SchedulingConfig {
+	return &SchedulingConfig{
+		Code:    this.Code,
+		Options: maps.NewMap(this.Options),
+	}
+}

pkg/serverconfigs/scheduling_group.go

@@ -0,0 +1,124 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package serverconfigs
+
+import (
+	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/schedulingconfigs"
+	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/shared"
+	"github.com/iwind/TeaGo/maps"
+)
+
+// SchedulingGroup 负载均衡分组
+type SchedulingGroup struct {
+	Scheduling *SchedulingConfig `yaml:"scheduling" json:"scheduling"`
+
+	PrimaryOrigins []*OriginConfig
+	BackupOrigins  []*OriginConfig
+
+	hasPrimaryOrigins  bool
+	hasBackupOrigins   bool
+	schedulingIsBackup bool
+	schedulingObject   schedulingconfigs.SchedulingInterface
+}
+
+// Init 初始化
+func (this *SchedulingGroup) Init() error {
+	this.hasPrimaryOrigins = len(this.PrimaryOrigins) > 0
+	this.hasBackupOrigins = len(this.BackupOrigins) > 0
+
+	if this.Scheduling == nil {
+		this.Scheduling = &SchedulingConfig{
+			Code:    "random",
+			Options: maps.Map{},
+		}
+	}
+
+	return nil
+}
+
+// NextOrigin 取得下一个可用的后端服务
+func (this *SchedulingGroup) NextOrigin(call *shared.RequestCall) *OriginConfig {
+	if this.schedulingObject == nil {
+		return nil
+	}
+
+	if this.Scheduling != nil && call != nil && call.Options != nil {
+		for k, v := range this.Scheduling.Options {
+			call.Options[k] = v
+		}
+	}
+
+	candidate := this.schedulingObject.Next(call)
+
+	// 末了重置状态
+	defer func() {
+		if candidate == nil {
+			this.schedulingIsBackup = false
+		}
+	}()
+
+	if candidate == nil {
+		// 启用备用服务器
+		if !this.schedulingIsBackup {
+			this.SetupScheduling(true, true)
+			candidate = this.schedulingObject.Next(call)
+			if candidate == nil {
+				// 不检查主要源站
+				this.SetupScheduling(false, false)
+				candidate = this.schedulingObject.Next(call)
+				if candidate == nil {
+					// 不检查备用源站
+					this.SetupScheduling(true, false)
+					candidate = this.schedulingObject.Next(call)
+					if candidate == nil {
+						return nil
+					}
+				}
+			}
+		}
+
+		if candidate == nil {
+			return nil
+		}
+	}
+
+	return candidate.(*OriginConfig)
+}
+
+// SetupScheduling 设置调度算法
+func (this *SchedulingGroup) SetupScheduling(isBackup bool, checkOk bool) {
+	this.schedulingIsBackup = isBackup
+
+	if this.Scheduling == nil {
+		this.schedulingObject = &schedulingconfigs.RandomScheduling{}
+	} else {
+		typeCode := this.Scheduling.Code
+		s := schedulingconfigs.FindSchedulingType(typeCode)
+		if s == nil {
+			this.Scheduling = nil
+			this.schedulingObject = &schedulingconfigs.RandomScheduling{}
+		} else {
+			this.schedulingObject = s["instance"].(schedulingconfigs.SchedulingInterface)
+		}
+	}
+
+	if !isBackup {
+		for _, origin := range this.PrimaryOrigins {
+			if origin.IsOn && (origin.IsOk || !checkOk) {
+				this.schedulingObject.Add(origin)
+			}
+		}
+	} else {
+		for _, origin := range this.BackupOrigins {
+			if origin.IsOn && (origin.IsOk || !checkOk) {
+				this.schedulingObject.Add(origin)
+			}
+		}
+	}
+
+	if !this.schedulingObject.HasCandidates() {
+		return
+	}
+
+	this.schedulingObject.Start()
+}

pkg/serverconfigs/schedulingconfigs/candidate.go

@@ -1,10 +1,10 @@
 package schedulingconfigs
 
-// 候选对象接口
+// CandidateInterface 候选对象接口
 type CandidateInterface interface {
-	// 权重
+	// CandidateWeight 权重
 	CandidateWeight() uint
 
-	// 代号
+	// CandidateCodes 代号
 	CandidateCodes() []string
 }

pkg/serverconfigs/schedulingconfigs/scheduling.go

@@ -5,35 +5,35 @@ import (
 	"github.com/iwind/TeaGo/maps"
 )
 
-// 调度算法接口
+// SchedulingInterface 调度算法接口
 type SchedulingInterface interface {
-	// 是否有候选对象
+	// HasCandidates 是否有候选对象
 	HasCandidates() bool
 
-	// 添加候选对象
+	// Add 添加候选对象
 	Add(candidate ...CandidateInterface)
 
-	// 启动
+	// Start 启动
 	Start()
 
-	// 查找下一个候选对象
+	// Next 查找下一个候选对象
 	Next(call *shared.RequestCall) CandidateInterface
 
-	// 获取简要信息
+	// Summary 获取简要信息
 	Summary() maps.Map
 }
 
-// 调度算法基础类
+// Scheduling 调度算法基础类
 type Scheduling struct {
 	Candidates []CandidateInterface
 }
 
-// 判断是否有候选对象
+// HasCandidates 判断是否有候选对象
 func (this *Scheduling) HasCandidates() bool {
 	return len(this.Candidates) > 0
 }
 
-// 添加候选对象
+// Add 添加候选对象
 func (this *Scheduling) Add(candidate ...CandidateInterface) {
 	this.Candidates = append(this.Candidates, candidate...)
 }

pkg/serverconfigs/schedulingconfigs/scheduling_hash.go

@@ -6,19 +6,19 @@ import (
 	"hash/crc32"
 )
 
-// Hash调度算法
+// HashScheduling Hash调度算法
 type HashScheduling struct {
 	Scheduling
 
 	count uint32
 }
 
-// 启动
+// Start 启动
 func (this *HashScheduling) Start() {
 	this.count = uint32(len(this.Candidates))
 }
 
-// 获取下一个候选对象
+// Next 获取下一个候选对象
 func (this *HashScheduling) Next(call *shared.RequestCall) CandidateInterface {
 	if this.count == 0 {
 		return nil
@@ -34,7 +34,7 @@ func (this *HashScheduling) Next(call *shared.RequestCall) CandidateInterface {
 	return this.Candidates[sum%this.count]
 }
 
-// 获取简要信息
+// Summary 获取简要信息
 func (this *HashScheduling) Summary() maps.Map {
 	return maps.Map{
 		"code":        "hash",

pkg/serverconfigs/schedulingconfigs/scheduling_random.go

@@ -8,7 +8,7 @@ import (
 	"time"
 )
 
-// 随机调度算法
+// RandomScheduling 随机调度算法
 type RandomScheduling struct {
 	Scheduling
 
@@ -16,7 +16,7 @@ type RandomScheduling struct {
 	count uint // 实际总的服务器数
 }
 
-// 启动
+// Start 启动
 func (this *RandomScheduling) Start() {
 	sumWeight := uint(0)
 	for _, c := range this.Candidates {
@@ -55,7 +55,7 @@ func (this *RandomScheduling) Start() {
 	rand.Seed(time.Now().UnixNano())
 }
 
-// 获取下一个候选对象
+// Next 获取下一个候选对象
 func (this *RandomScheduling) Next(call *shared.RequestCall) CandidateInterface {
 	if this.count == 0 {
 		return nil
@@ -67,7 +67,7 @@ func (this *RandomScheduling) Next(call *shared.RequestCall) CandidateInterface
 	return this.array[index]
 }
 
-// 获取简要信息
+// Summary 获取简要信息
 func (this *RandomScheduling) Summary() maps.Map {
 	return maps.Map{
 		"code":        "random",

pkg/serverconfigs/schedulingconfigs/scheduling_round_robin.go

@@ -7,7 +7,7 @@ import (
 	"sync"
 )
 
-// 轮询调度算法
+// RoundRobinScheduling 轮询调度算法
 type RoundRobinScheduling struct {
 	Scheduling
 
@@ -19,7 +19,7 @@ type RoundRobinScheduling struct {
 	locker sync.Mutex
 }
 
-// 启动
+// Start 启动
 func (this *RoundRobinScheduling) Start() {
 	lists.Sort(this.Candidates, func(i int, j int) bool {
 		c1 := this.Candidates[i]
@@ -41,7 +41,7 @@ func (this *RoundRobinScheduling) Start() {
 	this.count = uint(len(this.Candidates))
 }
 
-// 获取下一个候选对象
+// Next 获取下一个候选对象
 func (this *RoundRobinScheduling) Next(call *shared.RequestCall) CandidateInterface {
 	if this.count == 0 {
 		return nil
@@ -69,7 +69,7 @@ func (this *RoundRobinScheduling) Next(call *shared.RequestCall) CandidateInterf
 	return c
 }
 
-// 获取简要信息
+// Summary 获取简要信息
 func (this *RoundRobinScheduling) Summary() maps.Map {
 	return maps.Map{
 		"code":        "roundRobin",

pkg/serverconfigs/schedulingconfigs/scheduling_sticky.go

@@ -8,7 +8,7 @@ import (
 	"time"
 )
 
-// Sticky调度算法
+// StickyScheduling Sticky调度算法
 type StickyScheduling struct {
 	Scheduling
 
@@ -16,7 +16,7 @@ type StickyScheduling struct {
 	mapping map[string]CandidateInterface // code => candidate
 }
 
-// 启动
+// Start 启动
 func (this *StickyScheduling) Start() {
 	this.mapping = map[string]CandidateInterface{}
 	for _, c := range this.Candidates {
@@ -29,7 +29,7 @@ func (this *StickyScheduling) Start() {
 	rand.Seed(time.Now().UnixNano())
 }
 
-// 获取下一个候选对象
+// Next 获取下一个候选对象
 func (this *StickyScheduling) Next(call *shared.RequestCall) CandidateInterface {
 	if this.count == 0 {
 		return nil
@@ -95,7 +95,7 @@ func (this *StickyScheduling) Next(call *shared.RequestCall) CandidateInterface
 	return c
 }
 
-// 获取简要信息
+// Summary 获取简要信息
 func (this *StickyScheduling) Summary() maps.Map {
 	return maps.Map{
 		"code":        "sticky",

pkg/serverconfigs/shared/request_call.go

@@ -5,22 +5,24 @@ import (
 	"net/http"
 )
 
-// 请求调用
+// RequestCall 请求调用
 type RequestCall struct {
-	Formatter         func(source string) string
+	Formatter func(source string) string // 当前变量格式化函数
-	Request           *http.Request
+	Request   *http.Request              // 当前请求
+	Domain    string                     // 当前域名
+
 	ResponseCallbacks []func(resp http.ResponseWriter)
 	Options           maps.Map
 }
 
-// 获取新对象
+// NewRequestCall 获取新对象
 func NewRequestCall() *RequestCall {
 	return &RequestCall{
 		Options: maps.Map{},
 	}
 }
 
-// 重置
+// Reset 重置
 func (this *RequestCall) Reset() {
 	this.Formatter = nil
 	this.Request = nil
@@ -28,12 +30,12 @@ func (this *RequestCall) Reset() {
 	this.Options = maps.Map{}
 }
 
-// 添加响应回调
+// AddResponseCall 添加响应回调
 func (this *RequestCall) AddResponseCall(callback func(resp http.ResponseWriter)) {
 	this.ResponseCallbacks = append(this.ResponseCallbacks, callback)
 }
 
-// 执行响应回调
+// CallResponseCallbacks 执行响应回调
 func (this *RequestCall) CallResponseCallbacks(resp http.ResponseWriter) {
 	for _, callback := range this.ResponseCallbacks {
 		callback(resp)