watchdog-go: cpu情報を取得できるように

watchdog-go/watchdog/cpu_collector.go

@@ -0,0 +1,51 @@
+package watchdog
+
+import (
+	"fmt"
+	"github.com/shirou/gopsutil/v3/cpu"
+	"google.golang.org/protobuf/types/known/timestamppb"
+	"time"
+)
+
+type UsedCPU struct {
+	config Config
+}
+
+func NewUsedCpu(config Config) MetricsCollector {
+	return &UsedCPU{
+		config: config,
+	}
+}
+
+func (u UsedCPU) Collect() (*Metric, error) {
+	coreCounts, err := cpu.Counts(false)
+	if err != nil {
+		return nil, err
+	}
+	threadCounts, err := cpu.Counts(true)
+	if err != nil {
+		return nil, err
+	}
+	name := u.config.ClientName + " Used CPU"
+	percent, err := cpu.Percent(100+time.Millisecond, false)
+	if err != nil {
+		return nil, err
+	}
+	usedCpu := fmt.Sprintf("%g", percent[0])
+
+	cpuCore := fmt.Sprintf("%d Core %d Thread", coreCounts, threadCounts)
+
+	return &Metric{
+		Name:      name,
+		ObjectId:  toId(name),
+		Domain:    u.config.ClientDomain,
+		Status:    Status_OK,
+		Value:     usedCpu,
+		Timestamp: timestamppb.Now(),
+		Message:   cpuCore,
+	}, nil
+}
+
+func (u UsedCPU) Timer() time.Duration {
+	return 1 * time.Minute
+}

watchdog-go/watchdog/watchdog_go.go

@@ -2,6 +2,7 @@ package watchdog
 
 import (
 	"fmt"
+	"github.com/shirou/gopsutil/v3/host"
 	"golang.org/x/net/context"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials/insecure"
@@ -18,17 +19,7 @@ func Run() {
 
 	fmt.Println("start gRPC Client.")
 
-	load, err := ini.Load("config.ini")
-	if err != nil {
-		log.Fatal(err)
-		return
-	}
-
-	config := Config{
-		Url:          load.Section("Parent").Key("url").String(),
-		ClientName:   load.Section("Watch").Key("name").MustString("Watch Dog Go"),
-		ClientDomain: load.Section("Watch").Key("domain").MustString("internal"),
-	}
+	config := buildConfig()
 
 	dial, err := grpc.Dial(config.Url, grpc.WithTransportCredentials(insecure.NewCredentials()))
 	if err != nil {
@@ -43,6 +34,7 @@ func Run() {
 		NewUsedSwap(config),
 		NewTotalMemory(config),
 		NewTotalSwap(config),
+		NewUsedCpu(config),
 	}
 
 	collectorMap := map[time.Duration][]MetricsCollector{}
@@ -75,7 +67,7 @@ func Run() {
 					if err != nil {
 						continue
 					}
-					log.Printf("%s: %s", collect.Name, collect.Value)
+					log.Printf("%s: %s message: %s", collect.Name, collect.Value, collect.Message)
 					metrics <- *collect
 				}
 
@@ -96,3 +88,21 @@ func Run() {
 func toId(value string) string {
 	return regex.ReplaceAllString(strings.ReplaceAll(value, " ", "-"), "")
 }
+
+func buildConfig() Config {
+	load, err := ini.Load("config.ini")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	hostinfo, err := host.Info()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	return Config{
+		Url:          load.Section("Parent").Key("url").String(),
+		ClientName:   load.Section("Watch").Key("name").MustString(hostinfo.Hostname),
+		ClientDomain: load.Section("Watch").Key("domain").MustString(hostinfo.Hostname),
+	}
+}