Providing metrics information to Prometheus

Former-commit-id: 5d84c61c35ecba3aaf7f63f59e6efdf4e2752f99

api/desc/core/pcm-core.api

@@ -30,6 +30,20 @@ type (
         centerType string `json:"centerType"`
     }
 )
+type (
+    syncClusterLoadReq {
+        clusterLoadRecords []ClusterLoadRecord `json:"clusterLoadRecords"`
+    }
+    ClusterLoadRecord {
+        ClusterName string `json:"clusterName"`
+        CpuUsage float64 `json:"cpuUsage"`
+        MemoryUsage float64 `json:"memoryUsage"`
+        DiskUsage float64 `json:"diskUsage"`
+    }
+)
+
+
+
 type (
     getClusterListReq {
         Id int64 `form:"id"`

api/desc/pcm.api

@@ -104,6 +104,14 @@ service pcm {
 	@doc "Center Resources top3"
 	@handler centerResourcesHandler
 	get /core/centerResources  returns (centerResourcesResp)
+
+	@doc "Synchronize Cluster Load Information"
+	@handler syncClusterLoadHandler
+	post /core/syncClusterLoad (syncClusterLoadReq)
+
+	@doc "metrics"
+	@handler metricsHandler
+	get /core/metrics
 }
 
 //hpc二级接口

api/internal/handler/core/metricshandler.go

@@ -0,0 +1,12 @@
+package core
+
+import (
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"net/http"
+
+	"gitlink.org.cn/JointCloud/pcm-coordinator/api/internal/svc"
+)
+
+func MetricsHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
+	return promhttp.Handler().ServeHTTP
+}

api/internal/handler/core/syncclusterloadhandler.go

@@ -0,0 +1,25 @@
+package core
+
+import (
+	"gitlink.org.cn/JointCloud/pcm-coordinator/pkg/repository/result"
+	"net/http"
+
+	"github.com/zeromicro/go-zero/rest/httpx"
+	"gitlink.org.cn/JointCloud/pcm-coordinator/api/internal/logic/core"
+	"gitlink.org.cn/JointCloud/pcm-coordinator/api/internal/svc"
+	"gitlink.org.cn/JointCloud/pcm-coordinator/api/internal/types"
+)
+
+func SyncClusterLoadHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var req types.SyncClusterLoadReq
+		if err := httpx.Parse(r, &req); err != nil {
+			httpx.ErrorCtx(r.Context(), w, err)
+			return
+		}
+
+		l := core.NewSyncClusterLoadLogic(r.Context(), svcCtx)
+		err := l.SyncClusterLoad(&req)
+		result.HttpResult(r, w, nil, err)
+	}
+}

api/internal/handler/routes.go

@@ -124,6 +124,16 @@ func RegisterHandlers(server *rest.Server, serverCtx *svc.ServiceContext) {
 				Path:    "/core/centerResources",
 				Handler: core.CenterResourcesHandler(serverCtx),
 			},
+			{
+				Method:  http.MethodPost,
+				Path:    "/core/syncClusterLoad",
+				Handler: core.SyncClusterLoadHandler(serverCtx),
+			},
+			{
+				Method:  http.MethodGet,
+				Path:    "/core/metrics",
+				Handler: core.MetricsHandler(serverCtx),
+			},
 		},
 		rest.WithPrefix("/pcm/v1"),
 	)

api/internal/logic/core/metricslogic.go

@@ -0,0 +1,28 @@
+package core
+
+import (
+	"context"
+
+	"github.com/zeromicro/go-zero/core/logx"
+	"gitlink.org.cn/JointCloud/pcm-coordinator/api/internal/svc"
+)
+
+type MetricsLogic struct {
+	logx.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewMetricsLogic(ctx context.Context, svcCtx *svc.ServiceContext) *MetricsLogic {
+	return &MetricsLogic{
+		Logger: logx.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *MetricsLogic) Metrics() error {
+	// todo: add your logic here and delete this line
+
+	return nil
+}

api/internal/logic/core/syncclusterloadlogic.go

@@ -0,0 +1,35 @@
+package core
+
+import (
+	"context"
+	"gitlink.org.cn/JointCloud/pcm-coordinator/api/internal/svc"
+	"gitlink.org.cn/JointCloud/pcm-coordinator/api/internal/types"
+	"gitlink.org.cn/JointCloud/pcm-coordinator/pkg/tracker"
+
+	"github.com/zeromicro/go-zero/core/logx"
+)
+
+type SyncClusterLoadLogic struct {
+	logx.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewSyncClusterLoadLogic(ctx context.Context, svcCtx *svc.ServiceContext) *SyncClusterLoadLogic {
+	return &SyncClusterLoadLogic{
+		Logger: logx.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *SyncClusterLoadLogic) SyncClusterLoad(req *types.SyncClusterLoadReq) error {
+	if len(req.ClusterLoadRecords) != 0 {
+		for _, record := range req.ClusterLoadRecords {
+			tracker.ClusterCpuGauge.WithLabelValues(record.ClusterName).Set(record.CpuUsage)
+			tracker.ClusterMemoryGauge.WithLabelValues(record.ClusterName).Set(record.MemoryUsage)
+			tracker.ClusterDiskGauge.WithLabelValues(record.ClusterName).Set(record.DiskUsage)
+		}
+	}
+	return nil
+}

api/internal/types/types.go

@@ -24,6 +24,17 @@ type CenterIndex struct {
 	CenterType string  `json:"centerType"`
 }
 
+type SyncClusterLoadReq struct {
+	ClusterLoadRecords []ClusterLoadRecord `json:"clusterLoadRecords"`
+}
+
+type ClusterLoadRecord struct {
+	ClusterName string  `json:"clusterName"`
+	CpuUsage    float64 `json:"cpuUsage"`
+	MemoryUsage float64 `json:"memoryUsage"`
+	DiskUsage   float64 `json:"diskUsage"`
+}
+
 type GetClusterListReq struct {
 	Id int64 `form:"id"`
 }

pkg/tracker/queryoptions.go

@@ -254,6 +254,7 @@ type ControllerOption struct {
 	Namespace    string
 	Kind         string
 	WorkloadName string
+	PodsName     string
 	Level        string
 }
 

pkg/tracker/tracker.go

@@ -18,6 +18,7 @@ import (
 	"context"
 	"github.com/prometheus/client_golang/api"
 	v1 "github.com/prometheus/client_golang/api/prometheus/v1"
+	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/common/model"
 	"strconv"
 	"strings"
@@ -25,6 +26,30 @@ import (
 	"time"
 )
 
+var (
+	ClusterCpuGauge = prometheus.NewGaugeVec(prometheus.GaugeOpts{
+		Name: "cluster_cpu_usage",
+		Help: "Cluster CPU Utilization Rate.",
+	}, []string{"cluster_name"})
+	ClusterMemoryGauge = prometheus.NewGaugeVec(prometheus.GaugeOpts{
+		Name: "cluster_memory_usage",
+		Help: "Cluster Memory Utilization Rate.",
+	}, []string{"cluster_name"})
+	ClusterDiskGauge = prometheus.NewGaugeVec(prometheus.GaugeOpts{
+		Name: "cluster_disk_usage",
+		Help: "Cluster Disk Utilization Rate.",
+	}, []string{"cluster_name"})
+	metrics = []prometheus.Collector{
+		ClusterCpuGauge,
+		ClusterMemoryGauge,
+		ClusterDiskGauge,
+	}
+)
+
+func init() {
+	prometheus.MustRegister(metrics...)
+}
+
 type Prometheus struct {
 	prometheus Interface
 	client     v1.API