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metrics.go
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metrics.go
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// Copyright 2022 The kubegems.io Authors
//
// 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 observability
import (
"context"
"fmt"
"math"
"sort"
"strconv"
"strings"
"sync"
"time"
"github.com/gin-gonic/gin"
"github.com/pkg/errors"
prommodel "github.com/prometheus/common/model"
"github.com/prometheus/prometheus/pkg/labels"
"github.com/prometheus/prometheus/promql/parser"
"gorm.io/gorm"
"kubegems.io/kubegems/pkg/i18n"
"kubegems.io/kubegems/pkg/log"
"kubegems.io/kubegems/pkg/service/handlers"
"kubegems.io/kubegems/pkg/service/models"
"kubegems.io/kubegems/pkg/service/observe"
"kubegems.io/kubegems/pkg/utils/agents"
"kubegems.io/kubegems/pkg/utils/prometheus"
"kubegems.io/kubegems/pkg/utils/prometheus/promql"
)
type MetricQueryReq struct {
// 查询范围
Cluster string
Namespace string
// EnvironmentID string `json:"environment_id"` // 可获取Cluster、namespace信息
// 查询目标
*prometheus.PromqlGenerator
Expr string // 不传则自动生成
Query *promql.Query
// 时间
Start string // 开始时间
End string // 结束时间
Step string // 样本间隔, 单位秒
Label string // 要查询的标签值
TargetName string // panel中多个查询的id
}
// Query 监控指标查询
// @Tags Observability
// @Summary 监控指标查询
// @Description 监控指标查询
// @Accept json
// @Produce json
// @Param cluster path string true "集群名"
// @Param namespace path string true "命名空间，所有namespace为_all"
// @Param resource query string false "查询资源"
// @Param rule query string false "查询规则"
// @Param unit query string false "单位"
// @Param labelpairs query string false "标签键值对(value为空或者_all表示所有，支持正则), eg. labelpairs[host]=k8s-master&labelpairs[pod]=_all"
// @Param expr query string false "promql表达式"
// @Param start query string false "开始时间，默认现在-30m"
// @Param end query string false "结束时间，默认现在"
// @Param step query int false "step, 单位秒，默认0"
// @Success 200 {object} handlers.ResponseStruct{Data=object} "Metrics配置"
// @Router /v1/observability/cluster/{cluster}/namespaces/{namespace}/monitor/metrics/queryrange [get]
// @Security JWT
func (h *ObservabilityHandler) QueryRange(c *gin.Context) {
ret := prommodel.Matrix{}
req := h.getMetricQuery(c)
if err := h.mutateMetricQueryReq(c, req); err != nil {
handlers.NotOK(c, err)
return
}
if err := h.Execute(c.Request.Context(), req.Cluster, func(ctx context.Context, cli agents.Client) error {
var err error
ret, err = cli.Extend().PrometheusQueryRange(ctx, req.Expr, req.Start, req.End, req.Step)
return err
}); err != nil {
handlers.NotOK(c, err)
return
}
handlers.OK(c, ret)
}
// Query 监控标签值
// @Tags Observability
// @Summary 监控标签值
// @Description 查询label对应的标签值
// @Accept json
// @Produce json
// @Param label query string true "要查询的标签"
// @Param cluster path string true "集群名"
// @Param namespace path string true "命名空间，所有namespace为_all"
// @Param resource query string false "查询资源"
// @Param rule query string false "查询规则"
// @Param unit query string false "单位"
// @Param labelpairs query string false "标签键值对(value为空或者_all表示所有，支持正则), eg. labelpairs[host]=k8s-master&labelpairs[pod]=_all"
// @Param expr query string false "promql表达式"
// @Param start query string false "开始时间，默认现在-30m"
// @Param end query string false "结束时间，默认现在"
// @Param step query int false "step, 单位秒，默认0"
// @Success 200 {object} handlers.ResponseStruct{Data=[]string} "Metrics配置"
// @Router /v1/observability/cluster/{cluster}/namespaces/{namespace}/monitor/metrics/labelvalues [get]
// @Security JWT
func (h *ObservabilityHandler) LabelValues(c *gin.Context) {
ret := []string{}
req := h.getMetricQuery(c)
if err := h.mutateMetricQueryReq(c, req); err != nil {
handlers.NotOK(c, err)
return
}
if err := h.Execute(c.Request.Context(), req.Cluster, func(ctx context.Context, cli agents.Client) error {
var err error
matchs := req.Query.GetVectorSelectors()
ret, err = cli.Extend().GetPrometheusLabelValues(ctx, matchs, req.Label, req.Start, req.End)
return err
}); err != nil {
handlers.NotOK(c, i18n.Errorf(c, "get prometheus label values failed, cluster: %s, promql: %s, %w", req.Cluster, req.Expr, err))
return
}
handlers.OK(c, ret)
}
// LabelNames 查群prometheus label names
// @Tags Observability
// @Summary 查群prometheus label names
// @Description 查群prometheus label names
// @Accept json
// @Produce json
// @Param cluster path string true "集群名"
// @Param namespace path string true "命名空间，所有namespace为_all"
// @Param resource query string false "查询资源"
// @Param rule query string false "查询规则"
// @Param start query string false "开始时间，默认现在-30m"
// @Param end query string false "结束时间，默认现在"
// @Param expr query string true "promql表达式"
// @Success 200 {object} handlers.ResponseStruct{Data=[]string} "resp"
// @Router /v1/observability/cluster/{cluster}/namespaces/{namespace}/monitor/metrics/labelnames [get]
// @Security JWT
func (h *ObservabilityHandler) LabelNames(c *gin.Context) {
ret := []string{}
req := h.getMetricQuery(c)
if err := h.mutateMetricQueryReq(c, req); err != nil {
handlers.NotOK(c, err)
return
}
if err := h.Execute(c.Request.Context(), req.Cluster, func(ctx context.Context, cli agents.Client) error {
var err error
matchs := req.Query.GetVectorSelectors()
ret, err = cli.Extend().GetPrometheusLabelNames(ctx, matchs, req.Start, req.End)
return err
}); err != nil {
handlers.NotOK(c, i18n.Errorf(c, "get prometheus label names failed, cluster: %s, promql: %s, %w", req.Cluster, req.Expr, err))
return
}
handlers.OK(c, ret)
}
// OtelMetricsGraphs OtelMetricsGraphs
// @Tags Observability
// @Summary OtelMetricsGraphs
// @Description OtelMetricsGraphs
// @Accept json
// @Produce json
// @Param cluster path string true "集群名"
// @Param namespace path string true "命名空间"
// @Param service query string false "jaeger service"
// @Param start query string false "开始时间，默认现在-30m"
// @Param end query string false "结束时间，默认现在"
// @Success 200 {object} handlers.ResponseStruct{Data=object} "resp"
// @Router /v1/observability/cluster/{cluster}/namespaces/{namespace}/otel/metrics/graphs [get]
// @Security JWT
func (h *ObservabilityHandler) OtelMetricsGraphs(c *gin.Context) {
ns := c.Param("namespace")
svc := c.Query("service")
start, end, _ := getRangeParams(c.Query("start"), c.Query("end"))
ret := gin.H{}
if err := h.Execute(c.Request.Context(), c.Param("cluster"), func(ctx context.Context, cli agents.Client) error {
queries := map[string]string{
"latencyP95": fmt.Sprintf(`histogram_quantile(0.95, sum(rate(latency_bucket{namespace="%s", service_name="%s"}[5m])) by (le,namespace,service_name))`, ns, svc),
"latencyP75": fmt.Sprintf(`histogram_quantile(0.75, sum(rate(latency_bucket{namespace="%s", service_name="%s"}[5m])) by (le,namespace,service_name))`, ns, svc),
"latencyP50": fmt.Sprintf(`histogram_quantile(0.50, sum(rate(latency_bucket{namespace="%s", service_name="%s"}[5m])) by (le,namespace,service_name))`, ns, svc),
"errorRate": fmt.Sprintf(`sum(irate(calls_total{namespace="%[1]s", service_name="%[2]s", status_code="STATUS_CODE_ERROR"}[5m]))by(namespace, service_name) /
sum(irate(calls_total{namespace="%[1]s", service_name="%[2]s"}[5m]))by(namespace, service_name)`, ns, svc),
"requestRate": fmt.Sprintf(`sum(irate(calls_total{namespace="%s", service_name="%s"}[5m]))by(namespace, service_name)`, ns, svc),
"operationlatencyP95": fmt.Sprintf(`histogram_quantile(0.95, sum(rate(latency_bucket{namespace="%s", service_name="%s"}[5m])) by (le,namespace,service_name,operation))`, ns, svc),
"operationRequestRate": fmt.Sprintf(`sum(irate(calls_total{namespace="%s", service_name="%s"}[5m]))by(namespace, service_name, operation)`, ns, svc),
"operationErrorRate": fmt.Sprintf(`sum(irate(calls_total{namespace="%[1]s", service_name="%[2]s", status_code="STATUS_CODE_ERROR"}[5m]))by(namespace, service_name, operation) /
sum(irate(calls_total{namespace="%[1]s", service_name="%[2]s"}[5m]))by(namespace, service_name, operation)`, ns, svc),
}
wg := sync.WaitGroup{}
lock := sync.Mutex{}
for key, query := range queries {
wg.Add(1)
go func(k, q string) {
v, err := cli.Extend().PrometheusQueryRange(ctx, q, start, end, "")
if err != nil {
log.Error(err, "query failed", "key", k)
}
lock.Lock()
defer lock.Unlock()
ret[k] = v
wg.Done()
}(key, query)
}
wg.Wait()
return nil
}); err != nil {
handlers.NotOK(c, err)
return
}
handlers.OK(c, ret)
}
func (h *ObservabilityHandler) getMetricQuery(c *gin.Context) *MetricQueryReq {
return &MetricQueryReq{
Cluster: c.Param("cluster"),
Namespace: c.Param("namespace"),
Start: c.Query("start"),
End: c.Query("end"),
Step: c.Query("step"),
Expr: c.Query("expr"),
Label: c.Query("label"),
PromqlGenerator: &prometheus.PromqlGenerator{
Scope: c.Query("scope"),
Resource: c.Query("resource"),
Rule: c.Query("rule"),
LabelPairs: c.QueryMap("labelpairs"),
},
}
}
func (h *ObservabilityHandler) mutateMetricQueryReq(ctx context.Context, q *MetricQueryReq) error {
if q.Namespace == "_all" {
q.Namespace = ""
}
now := time.Now().UTC()
// 默认查近30m
if q.Start == "" || q.End == "" {
q.Start = now.Add(-30 * time.Minute).Format(time.RFC3339)
q.End = now.Format(time.RFC3339)
}
// 优先选用原生promql
if q.PromqlGenerator.Notpl() {
if q.Expr == "" {
return i18n.Errorf(ctx, "Template and native promql cannot be empty at the same time")
}
if err := observe.CheckQueryExprNamespace(q.Expr, q.Namespace); err != nil {
return err
}
} else {
if err := q.PromqlGenerator.SetTpl(h.GetDataBase().FindPromqlTpl); err != nil {
return err
}
if !q.PromqlGenerator.Tpl.Namespaced && q.Namespace != "" {
return i18n.Errorf(ctx, "Non namespace resources cannot filter the project environment")
}
q.Expr = q.PromqlGenerator.Tpl.Expr
}
var err error
q.Query, err = promql.New(q.Expr)
if err != nil {
return err
}
// from tpl
if !q.PromqlGenerator.Notpl() {
if q.Namespace != "" {
q.Query.AddLabelMatchers(&labels.Matcher{
Type: labels.MatchEqual,
Name: prometheus.PromqlNamespaceKey,
Value: q.Namespace,
})
}
q.Query.Sumby(q.Tpl.Labels...)
}
for label, value := range q.LabelPairs {
q.Query.AddLabelMatchers(&labels.Matcher{
Type: labels.MatchRegexp,
Name: label,
Value: value,
})
}
q.Expr = q.Query.String()
log.Debugf("query cluster: %s, expr: %s", q.Cluster, q.Expr)
return nil
}
// ListScopes 获取promql模板一级目录scope
// @Tags Observability
// @Summary 获取promql模板一级目录scope
// @Description 获取promql模板一级目录scope
// @Accept json
// @Produce json
// @Param tenant_id path string true "租户ID"
// @Param page query int false "page"
// @Param size query int false "size"
// @Param search query string false "search in (name)"
// @Param preload query string false "choices (Resources)"
// @Success 200 {object} handlers.ResponseStruct{Data=[]models.PromqlTplScope} "resp"
// @Router /v1/observability/tenant/{tenant_id}/template/scopes [get]
// @Security JWT
func (h *ObservabilityHandler) ListScopes(c *gin.Context) {
list := []*models.PromqlTplScope{}
query, err := handlers.GetQuery(c, nil)
if err != nil {
handlers.NotOK(c, err)
return
}
cond := &handlers.PageQueryCond{
Model: "PromqlTplScope",
SearchFields: []string{"name"},
PreloadFields: []string{"Resources", "Resources.Rules"},
}
total, page, size, err := query.PageList(h.GetDB().WithContext(c.Request.Context()), cond, &list)
if err != nil {
handlers.NotOK(c, err)
return
}
handlers.OK(c, handlers.Page(total, list, page, size))
}
// ListResources 获取promql模板二级目录resource
// @Tags Observability
// @Summary 获取promql模板二级目录resource
// @Description 获取promql模板二级目录resource
// @Accept json
// @Produce json
// @Param tenant_id path int true "租户ID"
// @Param scope_id path int true "scope id"
// @Param preload query string false "choices (Scope, Rules)"
// @Param search query string false "search in (name)"
// @Param page query int false "page"
// @Param size query int false "size"
// @Success 200 {object} handlers.ResponseStruct{Data=[]models.PromqlTplScope} "resp"
// @Router /v1/observability/tenant/{tenant_id}/template/scopes/{scope_id}/resources [get]
// @Security JWT
func (h *ObservabilityHandler) ListResources(c *gin.Context) {
list := []*models.PromqlTplResource{}
query, err := handlers.GetQuery(c, nil)
if err != nil {
handlers.NotOK(c, err)
return
}
cond := &handlers.PageQueryCond{
Model: "PromqlTplResource",
SearchFields: []string{"name"},
PreloadFields: []string{"Scope", "Rules"},
Where: []*handlers.QArgs{handlers.Args("scope_id = ?", c.Param("scope_id"))},
}
total, page, size, err := query.PageList(h.GetDB().WithContext(c.Request.Context()).Order("name"), cond, &list)
if err != nil {
handlers.NotOK(c, err)
return
}
handlers.OK(c, handlers.Page(total, list, page, size))
}
// ListRules 获取promql模板三级目录rule
// @Tags Observability
// @Summary 获取promql模板三级目录rule
// @Description 获取promql模板三级目录rule
// @Accept json
// @Produce json
// @Param tenant_id path string true "租户ID"
// @Param resource_id path string true "resource id"
// @Param preload query string false "choices (Resource, Resource.Scope)"
// @Param search query string false "search in (name, show_name)"
// @Param page query int false "page"
// @Param size query int false "size"
// @Success 200 {object} handlers.ResponseStruct{Data=[]models.PromqlTplScope} "resp"
// @Router /v1/observability/tenant/{tenant_id}/template/resources{resource_id}/rules [get]
// @Security JWT
func (h *ObservabilityHandler) ListRules(c *gin.Context) {
list := []*models.PromqlTplRule{}
query, err := handlers.GetQuery(c, nil)
if err != nil {
handlers.NotOK(c, err)
return
}
cond := &handlers.PageQueryCond{
Model: "PromqlTplRule",
SearchFields: []string{"name", "show_name"},
PreloadFields: []string{"Resource", "Resource.Scope"},
}
tenantID := c.Param("tenant_id")
if tenantID != "_all" {
cond.Where = append(cond.Where, handlers.Args("tenant_id is null or tenant_id = ?", tenantID))
}
resourceID := c.Param("resource_id")
if resourceID != "_all" {
cond.Where = append(cond.Where, handlers.Args("resource_id = ?", resourceID))
}
total, page, size, err := query.PageList(h.GetDB().WithContext(c.Request.Context()).Order("name"), cond, &list)
if err != nil {
handlers.NotOK(c, err)
return
}
handlers.OK(c, handlers.Page(total, list, page, size))
}
// GetRule 获取promql模板三级目录rule
// @Tags Observability
// @Summary 获取promql模板三级目录rule
// @Description 获取promql模板三级目录rule
// @Accept json
// @Produce json
// @Param tenant_id path string true "租户ID"
// @Param rule_id path string true "rule ID"
// @Param preload query string false "Resource, Resource.Scope"
// @Success 200 {object} handlers.ResponseStruct{Data=models.PromqlTplScope} "resp"
// @Router /v1/observability/tenant/{tenant_id}/template/rules/{rule_id} [get]
// @Security JWT
func (h *ObservabilityHandler) GetRule(c *gin.Context) {
rule := models.PromqlTplRule{}
tenantID := c.Param("tenant_id")
preload := c.Query("preload")
query := h.GetDB().WithContext(c.Request.Context()).Model(&models.PromqlTplRule{})
if preload == "Resource" || preload == "Resource.Scope" {
query.Preload(preload)
}
if tenantID != "_all" {
query.Where("tenant_id is null or tenant_id = ?", tenantID)
}
if err := query.First(&rule, c.Param("rule_id")).Error; err != nil {
handlers.NotOK(c, err)
return
}
handlers.OK(c, rule)
}
// SearchTpl 由scope,resource,rule name获取tpl
// @Tags Observability
// @Summary 由scope,resource,rule name获取tpl
// @Description 由scope,resource,rule name获取tpl
// @Accept json
// @Produce json
// @Param tenant_id path string true "租户ID"
// @Param scope query string true "scope"
// @Param resource query string true "scope"
// @Param rule query string true "scope"
// @Success 200 {object} handlers.ResponseStruct{Data=object} "resp"
// @Router /v1/observability/tenant/{tenant_id}/template/search [get]
// @Security JWT
func (h *ObservabilityHandler) SearchTpl(c *gin.Context) {
tpl, err := h.GetDataBase().FindPromqlTpl(c.Query("scope"), c.Query("resource"), c.Query("rule"))
if err != nil {
handlers.NotOK(c, err)
return
}
handlers.OK(c, tpl)
}
// AddRules 添加promql模板三级目录rule
// @Tags Observability
// @Summary 添加promql模板三级目录rule
// @Description 添加promql模板三级目录rule
// @Accept json
// @Produce json
// @Param tenant_id path string true "租户ID"
// @Param param body models.PromqlTplRule true "rule"
// @Success 200 {object} handlers.ResponseStruct{Data=[]models.PromqlTplScope} "resp"
// @Router /v1/observability/tenant/{tenant_id}/template/rules [post]
// @Security JWT
func (h *ObservabilityHandler) AddRules(c *gin.Context) {
req, err := h.getRuleReq(c)
if err != nil {
handlers.NotOK(c, err)
return
}
var count int64
ctx := c.Request.Context()
if err := h.GetDB().WithContext(ctx).Model(&models.PromqlTplRule{}).
Where("resource_id = ? and name = ?", req.ResourceID, req.Name).
Count(&count).Error; err != nil {
handlers.NotOK(c, err)
return
}
if count > 0 {
handlers.NotOK(c, i18n.Errorf(c, "rule %s already exist", req.Name))
return
}
action := i18n.Sprintf(context.TODO(), "create")
module := i18n.Sprintf(context.TODO(), "monitoring query template")
h.SetAuditData(c, action, module, req.Name)
if err := h.GetDB().WithContext(ctx).Create(&req).Error; err != nil {
handlers.NotOK(c, err)
return
}
handlers.OK(c, "ok")
}
// UpdateRules 更新promql模板三级目录rule
// @Tags Observability
// @Summary 更新promql模板三级目录rule
// @Description 更新promql模板三级目录rule
// @Accept json
// @Produce json
// @Param tenant_id path string true "租户ID"
// @Param rule_id path string true "rule ID"
// @Param param body models.PromqlTplRule true "rule"
// @Success 200 {object} handlers.ResponseStruct{Data=[]models.PromqlTplScope} "resp"
// @Router /v1/observability/tenant/{tenant_id}/template/rules/{rule_id} [put]
// @Security JWT
func (h *ObservabilityHandler) UpdateRules(c *gin.Context) {
newRule, err := h.getRuleReq(c)
if err != nil {
handlers.NotOK(c, err)
return
}
action := i18n.Sprintf(context.TODO(), "update")
module := i18n.Sprintf(context.TODO(), "monitoring query template")
h.SetAuditData(c, action, module, newRule.Name)
alertrules := []*models.AlertRule{}
ctx := c.Request.Context()
if err := h.GetDB().WithContext(ctx).Transaction(func(tx *gorm.DB) error {
oldRule := models.PromqlTplRule{}
if err := tx.Preload("Resource.Scope").First(&oldRule, "id = ?", c.Param("rule_id")).Error; err != nil {
return err
}
if err := tx.Select("name", "show_name", "description", "expr", "unit", "labels").Updates(newRule).Error; err != nil {
return err
}
return tx.Preload("Receivers.AlertChannel").
Find(&alertrules,
`promql_generator -> "$.scope" = ? and promql_generator -> "$.resource" = ? and promql_generator -> "$.rule" = ?`,
oldRule.Resource.Scope.Name,
oldRule.Resource.Name,
oldRule.Name,
).Error
}); err != nil {
handlers.NotOK(c, err)
return
}
status, _ := h.syncAlertRulesWithTimeout(ctx, alertrules, 5*time.Second)
handlers.OK(c, status)
}
// DeleteRules 删除promql模板三级目录rule
// @Tags Observability
// @Summary 删除promql模板三级目录rule
// @Description 删除promql模板三级目录rule
// @Accept json
// @Produce json
// @Param tenant_id path string true "租户ID"
// @Param rule_id path string true "rule ID"
// @Success 200 {object} handlers.ResponseStruct{Data=[]models.PromqlTplScope} "resp"
// @Router /v1/observability/tenant/{tenant_id}/template/rules/{rule_id} [delete]
// @Security JWT
func (h *ObservabilityHandler) DeleteRules(c *gin.Context) {
rule := &models.PromqlTplRule{}
ctx := c.Request.Context()
if err := h.GetDB().WithContext(ctx).Preload("Resource.Scope").First(rule, "id = ?", c.Param("rule_id")).Error; err != nil {
handlers.NotOK(c, err)
return
}
action := i18n.Sprintf(context.TODO(), "delete")
module := i18n.Sprintf(context.TODO(), "monitoring query template")
h.SetAuditData(c, action, module, rule.Name)
if rule.TenantID == nil {
if c.Param("tenant_id") != "_all" {
handlers.NotOK(c, i18n.Errorf(c, "prefabricated template cannot be deleted"))
return
}
} else {
h.SetExtraAuditData(c, models.ResTenant, *rule.TenantID)
}
if err := h.GetDB().WithContext(ctx).Transaction(func(tx *gorm.DB) error {
dashborads := []models.MonitorDashboard{}
if err := tx.Preload("Environment").Find(&dashborads).Error; err != nil {
return err
}
for _, dash := range dashborads {
if dash.Graphs.IsUsingTpl(rule.Resource.Scope.Name, rule.Resource.Name, rule.Name) {
return fmt.Errorf("此模板正在被环境: %s 中的监控大盘: %s 使用", dash.Environment.EnvironmentName, dash.Name)
}
}
tpls := []models.MonitorDashboardTpl{}
if err := tx.Find(&tpls).Error; err != nil {
return err
}
for _, tpl := range tpls {
if tpl.Graphs.IsUsingTpl(rule.Resource.Scope.Name, rule.Resource.Name, rule.Name) {
return fmt.Errorf("此模板正在被监控大盘模板: %s 使用", tpl.Name)
}
}
alertrules := []*models.AlertRule{}
if err := tx.Find(&alertrules,
`promql_generator -> "$.scope" = ? and promql_generator -> "$.resource" = ? and promql_generator -> "$.rule" = ?`,
rule.Resource.Scope.Name,
rule.Resource.Name,
rule.Name,
).Error; err != nil {
return err
}
if len(alertrules) > 0 {
tmp := make([]string, len(alertrules))
for i, v := range alertrules {
tmp[i] = v.FullName()
}
return fmt.Errorf("此模板正在被告警规则: [%s] 使用", strings.Join(tmp, ","))
}
return tx.Delete(rule).Error
}); err != nil {
handlers.NotOK(c, err)
return
}
handlers.OK(c, "ok")
}
func (h *ObservabilityHandler) getRuleReq(c *gin.Context) (*models.PromqlTplRule, error) {
req := models.PromqlTplRule{}
if err := c.BindJSON(&req); err != nil {
return nil, err
}
if _, err := parser.ParseExpr(req.Expr); err != nil {
return nil, errors.Wrap(err, "promql syntax error")
}
tenantID := c.Param("tenant_id")
if tenantID != "_all" {
t, _ := strconv.Atoi(tenantID)
if t == 0 {
return nil, i18n.Errorf(c, "tenant id not valid")
}
tmp := uint(t)
h.SetExtraAuditData(c, models.ResTenant, tmp)
req.TenantID = &tmp
}
return &req, nil
}
func getRangeParams(startStr, endStr string) (string, string, string) {
// 由于agent解析时没有管时区，所以这里需设置为UTC
start, end := prometheus.ParseRangeTime(startStr, endStr, time.UTC)
return start.Format(time.RFC3339), end.Format(time.RFC3339), end.Sub(start).String()
}
type OtelView struct {
LabelName string `json:"labelname"`
LabelValue string `json:"labelvalue"`
ValueMap map[string]prommodel.SampleValue `json:"valueMap"`
}
type OtelViews map[string]*OtelView
func newOtelViews() OtelViews {
return OtelViews{}
}
func (views OtelViews) addVectors(vectors map[string]prommodel.Vector, labelname string) OtelViews {
for queryname, vector := range vectors {
for _, v := range vector {
if labelvalue, ok := v.Metric[prommodel.LabelName(labelname)]; ok {
if otelSvc, ok := views[string(labelvalue)]; ok {
otelSvc.ValueMap[queryname] = v.Value
} else {
otelSvc := &OtelView{
LabelName: labelname,
LabelValue: string(labelvalue),
ValueMap: map[string]prommodel.SampleValue{
queryname: v.Value,
},
}
views[string(labelvalue)] = otelSvc
}
}
}
}
return views
}
func (views OtelViews) slice(sortby string) []*OtelView {
ret := make([]*OtelView, len(views))
index := 0
for _, view := range views {
ret[index] = view
index++
}
sortasc := true
sortfield := ""
if strings.HasSuffix(sortby, "Desc") {
sortasc = false
sortfield = strings.TrimSuffix(sortby, "Desc")
} else {
sortfield = strings.TrimSuffix(sortby, "Asc")
}
if sortfield == "" {
sort.Slice(ret, func(i, j int) bool {
if sortasc {
return ret[i].LabelValue < ret[j].LabelValue
} else {
return ret[i].LabelValue > ret[j].LabelValue
}
})
} else {
sort.Slice(ret, func(i, j int) bool {
if sortasc {
return lessThan(ret[i].ValueMap[sortfield], ret[j].ValueMap[sortfield])
} else {
return lessThan(ret[j].ValueMap[sortfield], ret[i].ValueMap[sortfield])
}
})
}
return ret
}
func lessThan(a, b prommodel.SampleValue) bool {
if math.IsNaN(float64(a)) {
a = 0
}
if math.IsNaN(float64(b)) {
b = 0
}
return float64(a) < float64(b)
}
// OtelServices 应用性能监控服务
// @Tags Observability
// @Summary 应用性能监控服务
// @Description 应用性能监控服务
// @Accept json
// @Produce json
// @Param cluster path string true "集群名"
// @Param namespace path string true "命名空间，所有namespace为_all"
// @Param start query string false "开始时间，默认现在-30m"
// @Param end query string false "结束时间，默认现在"
// @Param sortby query string false "通过valueMap的哪个字段排序，默认根据labelvalue排序"
// @Param page query int false "page"
// @Param size query int false "size"
// @Success 200 {object} handlers.ResponseStruct{Data=handlers.PageData{List=[]OtelView}} "resp"
// @Router /v1/observability/cluster/{cluster}/namespaces/{namespace}/otel/appmonitor/services [get]
// @Security JWT
func (h *ObservabilityHandler) OtelServices(c *gin.Context) {
ns := c.Param("namespace")
_, _, dur := getRangeParams(c.Query("start"), c.Query("end"))
vectors := map[string]prommodel.Vector{}
if err := h.Execute(c.Request.Context(), c.Param("cluster"), func(ctx context.Context, cli agents.Client) error {
// query prometheus
// 由于span metrics采集的数据，operation之间会有重合，这里计算出的qps、响应时间会不准确(偏大)
vectors = batchVector(map[string]string{
"avgRequestQPS": fmt.Sprintf(`sum(rate(calls_total{namespace="%s"}[%s]))by(service_name)`, ns, dur),
"avgResponseDurationSeconds": fmt.Sprintf(`sum(increase(latency_sum{namespace="%[1]s"}[%[2]s]))by(service_name) / sum(increase(latency_count{namespace="%[1]s"}[%[2]s]))by(service_name) / 1000`, ns, dur),
"p75ResponseDurationSeconds": fmt.Sprintf(`histogram_quantile(0.75, sum(increase(latency_bucket{namespace="%s"}[%s]))by(service_name, le)) / 1000`, ns, dur),
"p90ResponseDurationSeconds": fmt.Sprintf(`histogram_quantile(0.90, sum(increase(latency_bucket{namespace="%s"}[%s]))by(service_name, le)) / 1000`, ns, dur),
"errorCount": fmt.Sprintf(`sum(increase(calls_total{status_code="STATUS_CODE_ERROR", namespace="%s"}[%s]))by(service_name)`, ns, dur),
"errorRate": fmt.Sprintf(`sum(increase(calls_total{status_code="STATUS_CODE_ERROR", namespace="%[1]s"}[%[2]s]))by(service_name) / sum(increase(calls_total{namespace="%[1]s"}[%[2]s]))by(service_name)`, ns, dur),
}, ctx, cli)
return nil
}); err != nil {
handlers.NotOK(c, err)
return
}
ret := newOtelViews().addVectors(vectors, "service_name").slice(c.Query("sortby"))
handlers.OK(c, handlers.NewPageDataFromContext(c, ret, nil, nil))
}
func batchVector(queries map[string]string, ctx context.Context, cli agents.Client) map[string]prommodel.Vector {
wg := sync.WaitGroup{}
lock := sync.Mutex{}
vectors := map[string]prommodel.Vector{}
for key, query := range queries {
wg.Add(1)
go func(k, q string) {
v, err := cli.Extend().PrometheusVector(ctx, q)
if err != nil {
log.Warnf("query: %s failed: %v", q, err)
}
lock.Lock()
defer lock.Unlock()
vectors[k] = v
wg.Done()
}(key, query)
}
wg.Wait()
return vectors
}
type KV struct {
LabelName string `json:"labelname"`
LabelValue string `json:"labelvalue"`
Value prommodel.SampleValue `json:"value"`
}
type OtelOverViewResp struct {
P90ServiceDurationSeconds []KV `json:"p90ServiceDurationSeconds"` // p90最耗时服务
P90OperationDurationSeconds []KV `json:"p90OperationDurationSeconds"` // p90最耗时操作
ServiceErrorCount []KV `json:"serviceErrorCount"` // 服务错误数
DBOperationDurationSeconds []KV `json:"dbOperationDurationSeconds"` // 数据库操作数
}
// OtelOverview 应用性能监控概览
// @Tags Observability
// @Summary 应用性能监控概览
// @Description 应用性能监控概览
// @Accept json
// @Produce json
// @Param cluster path string true "集群名"
// @Param namespace path string true "命名空间"
// @Param start query string false "开始时间，默认现在-30m"
// @Param end query string false "结束时间，默认现在"
// @Param pick query string false "选择什么值(max/min/avg), default max"
// @Success 200 {object} handlers.ResponseStruct{Data=OtelOverViewResp} "resp"
// @Router /v1/observability/cluster/{cluster}/namespaces/{namespace}/otel/appmonitor/overview [get]
// @Security JWT
func (h *ObservabilityHandler) OtelOverview(c *gin.Context) {
ns := c.Param("namespace")
pick := c.DefaultQuery("pick", "max")
start, end, dur := getRangeParams(c.Query("start"), c.Query("end"))
overView := OtelOverViewResp{}
if err := h.Execute(c.Request.Context(), c.Param("cluster"), func(ctx context.Context, cli agents.Client) error {
p90ServiceDurationSeconds, err := cli.Extend().PrometheusQueryRange(ctx, fmt.Sprintf(`histogram_quantile(0.9, sum(rate(latency_bucket{namespace="%s"}[5m]))by(service_name, le)) / 1000`, ns), start, end, "")
if err != nil {
return err
}
overView.P90ServiceDurationSeconds = pickMatrixValue(p90ServiceDurationSeconds, "service_name", pick)
p90OperationDurationSeconds, err := cli.Extend().PrometheusQueryRange(ctx, fmt.Sprintf(`histogram_quantile(0.9, sum(rate(latency_bucket{namespace="%s"}[5m]))by(operation, le)) / 1000`, ns), start, end, "")
if err != nil {
return err
}
overView.P90OperationDurationSeconds = pickMatrixValue(p90OperationDurationSeconds, "operation", pick)
serviceErrorCount, err := cli.Extend().PrometheusVector(ctx, fmt.Sprintf(`sum(increase(calls_total{status_code="STATUS_CODE_ERROR", namespace="%s"}[%s]))by(service_name)`, ns, dur))
if err != nil {
return err
}
overView.ServiceErrorCount = pickVectorValue(serviceErrorCount, "service_name")
dbOperationDurationSeconds, err := cli.Extend().PrometheusVector(ctx, fmt.Sprintf(`sum(increase(latency_sum{namespace="%s", operation=~"SELECT.*|UPDATE.*|INSERT.*|DELETE.*"}[%s]))by(operation) / 1000`, ns, dur))
if err != nil {
return err
}
overView.DBOperationDurationSeconds = pickVectorValue(dbOperationDurationSeconds, "operation")
return nil
}); err != nil {
handlers.NotOK(c, err)
return
}
handlers.OK(c, overView)
}
func pickMatrixValue(matrix prommodel.Matrix, field string, pick string) []KV {
// 在matrix中取最大/平均/最小的值
getValue := func(pairs []prommodel.SamplePair, pick string) prommodel.SampleValue {
if len(pairs) == 0 {
return 0
}
// pick max/min/avg value
switch pick {
case "min":
min := pairs[0].Value
for _, v := range pairs {
if v.Value < min {
min = v.Value
}
}
return min
case "avg":
var sum prommodel.SampleValue
for _, v := range pairs {
sum += v.Value
}
return sum / prommodel.SampleValue(len(pairs))
default:
max := pairs[0].Value
for _, v := range pairs {
if v.Value > max {
max = v.Value
}
}
return max
}
}
ret := []KV{}
for _, v := range matrix {
if labelvalue, ok := v.Metric[prommodel.LabelName(field)]; ok {
value := getValue(v.Values, pick)
if !math.IsNaN(float64(value)) {
ret = append(ret, KV{
LabelName: field,
LabelValue: string(labelvalue),
Value: value,
})
}
}
}
sort.Slice(ret, func(i, j int) bool {
return lessThan(ret[j].Value, ret[i].Value)
})
return ret
}
func pickVectorValue(vector prommodel.Vector, field string) []KV {
ret := []KV{}
for _, v := range vector {
if labelvalue, ok := v.Metric[prommodel.LabelName(field)]; ok {
if !math.IsNaN(float64(v.Value)) {
ret = append(ret, KV{
LabelName: field,
LabelValue: string(labelvalue),
Value: v.Value,
})
}
}
}
sort.Slice(ret, func(i, j int) bool {
return lessThan(ret[j].Value, ret[i].Value)
})
return ret
}
// OtelServiceRequests 应用请求
// @Tags Observability
// @Summary 应用请求
// @Description 应用请求
// @Accept json
// @Produce json
// @Param cluster path string true "集群名"
// @Param namespace path string true "命名空间"
// @Param service_name path string true "应用"
// @Param start query string false "开始时间，默认现在-30m"
// @Param end query string false "结束时间，默认现在"
// @Success 200 {object} handlers.ResponseStruct{Data=gin.H} "resp"
// @Router /v1/observability/cluster/{cluster}/namespaces/{namespace}/otel/appmonitor/services/{service_name}/requests [get]
// @Security JWT
func (h *ObservabilityHandler) OtelServiceRequests(c *gin.Context) {
ns := c.Param("namespace")
svc := c.Param("service_name")
start, end, _ := getRangeParams(c.Query("start"), c.Query("end"))
ret := gin.H{}
if err := h.Execute(c.Request.Context(), c.Param("cluster"), func(ctx context.Context, cli agents.Client) error {
queries := map[string]string{
"requestRate": fmt.Sprintf(`sum(irate(calls_total{namespace="%s", service_name="%s"}[5m]))`, ns, svc),
"errorRate": fmt.Sprintf(`sum(irate(calls_total{namespace="%[1]s", service_name="%[2]s", status_code="STATUS_CODE_ERROR"}[5m])) / sum(irate(calls_total{namespace="%[1]s", service_name="%[2]s"}[5m]))`, ns, svc),
"p75DurationSeconds": fmt.Sprintf(`histogram_quantile(0.75, sum(rate(latency_bucket{namespace="%s", service_name="%s"}[5m]))by(le)) / 1000`, ns, svc),
"p90DurationSeconds": fmt.Sprintf(`histogram_quantile(0.90, sum(rate(latency_bucket{namespace="%s", service_name="%s"}[5m]))by(le)) / 1000`, ns, svc),
}
wg := sync.WaitGroup{}
lock := sync.Mutex{}
for key, query := range queries {
wg.Add(1)
go func(k, q string) {
v, err := cli.Extend().PrometheusQueryRange(ctx, q, start, end, "")
if err != nil {
log.Error(err, "query failed", "key", k)
}
lock.Lock()
defer lock.Unlock()
ret[k] = v
wg.Done()
}(key, query)
}
wg.Wait()
return nil
}); err != nil {
handlers.NotOK(c, err)
return
}
handlers.OK(c, ret)
}
// OtelServiceOperations 应用操作
// @Tags Observability
// @Summary 应用操作
// @Description 应用操作