Merge pull request #172 from XiaoMi/dev

增加登录 capability 设置
make 时，增加 git dirty 检测
make 时，增加 git 版本记录
优化连接池，动态更改连接数量至 [capacity, maxCapacity] 之间
允许 gaea 登录版本配置修改

.gitignore

@@ -4,3 +4,4 @@ bin
 logs
 .coverage.*
 .vscode
+.idea

cc/server.go

@@ -80,7 +80,13 @@ type ListNamespaceResp struct {
 	Data      []string   `json:"data"`
 }
 
-// return names of all namespace
+// @Summary 返回所有namespace名称
+// @Description 获取集群名称, 返回所有namespace名称, 未传入为默认集群
+// @Produce  json
+// @Param cluster header string false "cluster name"
+// @Success 200 {object} ListNamespaceResp
+// @Security BasicAuth
+// @Router /api/cc/namespace/list [get]
 func (s *Server) listNamespace(c *gin.Context) {
 	var err error
 	r := &ListNamespaceResp{RetHeader: &RetHeader{RetCode: -1, RetMessage: ""}}
@@ -109,6 +115,15 @@ type QueryNamespaceResp struct {
 	Data      []*models.Namespace `json:"data"`
 }
 
+// @Summary 返回namespace配置详情, 已废弃
+// @Description 获取集群名称, 返回多个指定namespace配置详情, 未传入为默认集群, 已废弃
+// @Accept  json
+// @Produce  json
+// @Param cluster header string false "cluster name"
+// @Param names body json true "{"names":["namespace_1","namespace_2"]}"
+// @Success 200 {object} QueryNamespaceResp
+// @Security BasicAuth
+// @Router /api/cc/namespace [get]
 func (s *Server) queryNamespace(c *gin.Context) {
 	var err error
 	var req QueryReq
@@ -136,6 +151,14 @@ func (s *Server) queryNamespace(c *gin.Context) {
 	return
 }
 
+// @Summary 返回namespace配置详情
+// @Description 获取集群名称, 返回指定namespace配置详情, 未传入为默认集群
+// @Produce  json
+// @Param cluster header string false "cluster name"
+// @Param name path string true "namespace Name"
+// @Success 200 {object} QueryNamespaceResp
+// @Security BasicAuth
+// @Router /api/cc/namespace/detail/{name} [get]
 func (s *Server) detailNamespace(c *gin.Context) {
 	var err error
 	var names []string
@@ -164,6 +187,15 @@ func (s *Server) detailNamespace(c *gin.Context) {
 	return
 }
 
+// @Summary 创建修改namespace配置
+// @Description 获取集群名称, 根据json body创建或修改namespace配置, 未传入为默认集群
+// @Accept  json
+// @Produce  json
+// @Param cluster header string false "cluster name"
+// @Param name body json true "namespace"
+// @Success 200 {object} RetHeader
+// @Security BasicAuth
+// @Router /api/cc/namespace/modify [put]
 func (s *Server) modifyNamespace(c *gin.Context) {
 	var err error
 	var namespace models.Namespace
@@ -190,6 +222,14 @@ func (s *Server) modifyNamespace(c *gin.Context) {
 	return
 }
 
+// @Summary 删除namespace配置
+// @Description 获取集群名称, 根据namespace name删除namespace, 未传入为默认集群
+// @Produce  json
+// @Param cluster header string false "cluster name"
+// @Param name path string true "namespace name"
+// @Success 200 {object} RetHeader
+// @Security BasicAuth
+// @Router /api/cc/namespace/delete/{name} [put]
 func (s *Server) delNamespace(c *gin.Context) {
 	var err error
 	h := &RetHeader{RetCode: -1, RetMessage: ""}
@@ -219,6 +259,14 @@ type sqlFingerprintResp struct {
 	SlowSQLs  map[string]string `json:"slow_sqls"`
 }
 
+// @Summary 获取namespce慢SQL、错误SQL
+// @Description 获取集群名称, 根据namespace name获取该namespce慢SQL、错误SQL, 未传入为默认集群
+// @Produce  json
+// @Param cluster header string false "cluster name"
+// @Param name path string true "namespace name"
+// @Success 200 {object} sqlFingerprintResp
+// @Security BasicAuth
+// @Router /api/cc/namespace/sqlfingerprint/{name} [get]
 func (s *Server) sqlFingerprint(c *gin.Context) {
 	var err error
 	r := &sqlFingerprintResp{RetHeader: &RetHeader{RetCode: -1, RetMessage: ""}}
@@ -246,6 +294,13 @@ type proxyConfigFingerprintResp struct {
 	Data      map[string]string `json:"data"` // key: ip:port value: md5 of config
 }
 
+// @Summary 获取集群管理地址
+// @Description 获取集群名称, 返回集群管理地址, 未传入为默认集群
+// @Produce  json
+// @Param cluster header string false "cluster name"
+// @Success 200 {object} proxyConfigFingerprintResp
+// @Security BasicAuth
+// @Router /api/cc/proxy/config/fingerprint [get]
 func (s *Server) proxyConfigFingerprint(c *gin.Context) {
 	var err error
 	r := &proxyConfigFingerprintResp{RetHeader: &RetHeader{RetCode: -1, RetMessage: ""}}

core/version.go

@@ -28,6 +28,8 @@ var (
 	buildHost        = "unknown"
 	buildStatus      = "unknown"
 	buildTime        = "unknown"
+	buildBranch      = "unknown"
+	buildGitDirty    = "0"
 )
 
 // BuildInfo describes version information about the binary build.
@@ -39,6 +41,8 @@ type BuildInfo struct {
 	GolangVersion string `json:"golang_version"`
 	BuildStatus   string `json:"status"`
 	BuildTime     string `json:"time"`
+	BuildBranch   string `json:"build_branch"`
+	BuildGitDirty string `json:"build_git_dirty"`
 }
 
 var (
@@ -54,13 +58,15 @@ var (
 // user@host-<version>-<git revision>-<build status>
 // ```
 func (b BuildInfo) String() string {
-	return fmt.Sprintf("%v@%v-%v-%v-%v-%v",
+	return fmt.Sprintf("%v@%v-%v-%v-%v-%v-%v-%v",
 		b.User,
 		b.Host,
 		b.Version,
 		b.GitRevision,
 		b.BuildStatus,
-		b.BuildTime)
+		b.BuildTime,
+		b.BuildBranch,
+		b.BuildGitDirty)
 }
 
 // LongForm returns a multi-line version information
@@ -81,14 +87,18 @@ User: %v@%v
 GolangVersion: %v
 BuildStatus: %v
 BuildTime: %v
+BuildBranch: %v
+BuildGitDirty: %v
 `,
 		b.Version,
 		b.GitRevision,
 		b.User,
 		b.Host,
 		b.GolangVersion,
 		b.BuildStatus,
-		b.BuildTime)
+		b.BuildTime,
+		b.BuildBranch,
+		b.BuildGitDirty)
 }
 
 func init() {
@@ -100,5 +110,7 @@ func init() {
 		GolangVersion: runtime.Version(),
 		BuildStatus:   buildStatus,
 		BuildTime:     buildTime,
+		BuildBranch:   buildBranch,
+		BuildGitDirty: buildGitDirty,
 	}
 }

etc/gaea.ini

@@ -44,3 +44,6 @@ stats_interval=10
 
 ;encrypt key
 encrypt_key=1234abcd5678efg*
+
+;server_version
+server_version=5.6.20-gaea

gen_version.sh

@@ -15,6 +15,10 @@ else
   tree_status="Modified"
 fi
 
+# Check for git branch and git dirty
+BRANCH=$(git rev-parse --abbrev-ref HEAD)
+GIT_DIRTY=$(git diff --no-ext-diff 2> /dev/null | wc -l)
+
 # XXX This needs to be updated to accomodate tags added after building, rather than prior to builds
 RELEASE_TAG=$(git describe --match '[0-9]*\.[0-9]*\.[0-9]*' --exact-match --tags 2> /dev/null || echo "")
 
@@ -26,10 +30,12 @@ elif [[ -n ${MY_VERSION} ]]; then
   VERSION="${MY_VERSION}"
 fi
 
-# used by pkg/version
+# used by core/version
 echo buildVersion       "${VERSION}"
 echo buildGitRevision   "${BUILD_GIT_REVISION}"
 echo buildUser          "$(whoami)"
 echo buildHost          "$(hostname -f)"
 echo buildStatus        "${tree_status}"
 echo buildTime          "$(date +%Y-%m-%d--%T)"
+echo buildBranch        "${BRANCH}"
+echo buildGitDirty      "${GIT_DIRTY}"

models/proxy.go

@@ -61,6 +61,8 @@ type Proxy struct {
 	StatsInterval int    `ini:"stats_interval"` // set stats interval of connect pool
 
 	EncryptKey string `ini:"encrypt_key"`
+
+	ServerVersion string `ini:"server_version"`
 }
 
 // ParseProxyConfigFromFile parser proxy config from file

proxy/server/admin.go

@@ -161,6 +161,10 @@ func (s *AdminServer) registerURL() {
 	})
 }
 
+// @Summary 获取proxy prometheus指标信息
+// @Description 获取gaea proxy prometheus指标信息
+// @Security BasicAuth
+// @Router /api/metric/metrics [get]
 func (s *AdminServer) registerMetric() {
 	metricGroup := s.engine.Group("/api/metric", gin.BasicAuth(gin.Accounts{s.adminUser: s.adminPassword}))
 	for path, handler := range s.proxy.manager.GetStatisticManager().GetHandlers() {
@@ -254,10 +258,22 @@ func (s *AdminServer) unregisterProxy() error {
 	return nil
 }
 
+// @Summary 获取proxy admin接口状态
+// @Description  获取proxy admin接口状态
+// @Success 200 {string} string "OK"
+// @Security BasicAuth
+// @Router /api/proxy/ping [get]
 func (s *AdminServer) ping(c *gin.Context) {
 	c.JSON(http.StatusOK, "OK")
 }
 
+// @Summary prepare namespace配置
+// @Description 通过管理接口, 二阶段提交, prepare namespace配置
+// @Produce  json
+// @Param name path string true "namespace name"
+// @Success 200 {string} string "OK"
+// @Security BasicAuth
+// @Router /api/proxy/config/prepare/{name} [put]
 func (s *AdminServer) prepareConfig(c *gin.Context) {
 	name := strings.TrimSpace(c.Param("name"))
 	if name == "" {
@@ -275,6 +291,13 @@ func (s *AdminServer) prepareConfig(c *gin.Context) {
 	c.JSON(http.StatusOK, "OK")
 }
 
+// @Summary commit namespace配置
+// @Description 通过管理接口, 二阶段提交, commit namespace配置, 使etcd配置生效
+// @Produce  json
+// @Param name path string true "namespace name"
+// @Success 200 {string} string "OK"
+// @Security BasicAuth
+// @Router /api/proxy/config/commit/{name} [put]
 func (s *AdminServer) commitConfig(c *gin.Context) {
 	name := strings.TrimSpace(c.Param("name"))
 	if name == "" {
@@ -289,6 +312,13 @@ func (s *AdminServer) commitConfig(c *gin.Context) {
 	c.JSON(http.StatusOK, "OK")
 }
 
+// @Summary 删除namespace配置
+// @Description 通过管理接口删除指定namespace配置
+// @Produce  json
+// @Param name path string true "namespace name"
+// @Success 200 {string} string "OK"
+// @Security BasicAuth
+// @Router /api/proxy/config/delete/{name} [put]
 func (s *AdminServer) deleteNamespace(c *gin.Context) {
 	name := strings.TrimSpace(c.Param("name"))
 	if name == "" {
@@ -304,11 +334,23 @@ func (s *AdminServer) deleteNamespace(c *gin.Context) {
 	c.JSON(http.StatusOK, "OK")
 }
 
+// @Summary 返回配置指纹
+// @Description 返回配置指纹, 指纹随配置变化而变化
+// @Produce  json
+// @Success 200 {string} string "Config Fingerprint"
+// @Security BasicAuth
+// @Router /api/proxy/config/fingerprint [get]
 func (s *AdminServer) configFingerprint(c *gin.Context) {
 	c.JSON(http.StatusOK, s.proxy.manager.ConfigFingerprint())
 }
 
-// getNamespaceSessionSQLFingerprint return namespace sql fingerprint information
+// @Summary 获取Porxy 慢SQL、错误SQL信息
+// @Description 通过管理接口获取Porxy 慢SQL、错误SQL信息
+// @Produce  json
+// @Param namespace path string true "namespace name"
+// @Success 200 {object} SQLFingerprint
+// @Security BasicAuth
+// @Router /api/proxy/stats/sessionsqlfingerprint/{namespace} [get]
 func (s *AdminServer) getNamespaceSessionSQLFingerprint(c *gin.Context) {
 	ns := strings.TrimSpace(c.Param("namespace"))
 	namespace := s.proxy.manager.GetNamespace(ns)
@@ -324,6 +366,13 @@ func (s *AdminServer) getNamespaceSessionSQLFingerprint(c *gin.Context) {
 	c.JSON(http.StatusOK, ret)
 }
 
+// @Summary 获取后端节点慢SQL、错误SQL信息
+// @Description 通过管理接口获取后端节点慢SQL、错误SQL信息
+// @Produce  json
+// @Param namespace path string true "namespace name"
+// @Success 200 {object} SQLFingerprint
+// @Security BasicAuth
+// @Router /api/proxy/stats/backendsqlfingerprint/{namespace} [get]
 func (s *AdminServer) getNamespaceBackendSQLFingerprint(c *gin.Context) {
 	ns := strings.TrimSpace(c.Param("namespace"))
 	namespace := s.proxy.manager.GetNamespace(ns)
@@ -339,6 +388,13 @@ func (s *AdminServer) getNamespaceBackendSQLFingerprint(c *gin.Context) {
 	c.JSON(http.StatusOK, ret)
 }
 
+// @Summary 清空Porxy节点慢SQL、错误SQL信息
+// @Description 通过管理接口清空Porxy慢SQL、错误SQL信息
+// @Produce  json
+// @Param namespace path string true "namespace name"
+// @Success 200 {object} SQLFingerprint
+// @Security BasicAuth
+// @Router /api/proxy/stats/sessionsqlfingerprint/{namespace} [delete]
 func (s *AdminServer) clearNamespaceSessionSQLFingerprint(c *gin.Context) {
 	ns := strings.TrimSpace(c.Param("namespace"))
 	namespace := s.proxy.manager.GetNamespace(ns)
@@ -353,6 +409,13 @@ func (s *AdminServer) clearNamespaceSessionSQLFingerprint(c *gin.Context) {
 	c.JSON(http.StatusOK, "OK")
 }
 
+// @Summary 清空后端节点慢SQL、错误SQL信息
+// @Description 通过管理接口清空后端节点慢SQL、错误SQL信息
+// @Produce  json
+// @Param namespace path string true "namespace name"
+// @Success 200 {object} SQLFingerprint
+// @Security BasicAuth
+// @Router /api/proxy/stats/backendsqlfingerprint/{namespace} [delete]
 func (s *AdminServer) clearNamespaceBackendSQLFingerprint(c *gin.Context) {
 	ns := strings.TrimSpace(c.Param("namespace"))
 	namespace := s.proxy.manager.GetNamespace(ns)