57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
package app
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import (
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"context"
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"errors"
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"fmt"
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"git.hlsq.asia/mmorpg/service-common/log"
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"git.hlsq.asia/mmorpg/service-gateway/config"
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"git.hlsq.asia/mmorpg/service-gateway/internal/global"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promhttp"
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"net/http"
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"sync"
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)
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// ModulePrometheus 普罗米修斯模块
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type ModulePrometheus struct {
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wg *sync.WaitGroup
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server *http.Server
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}
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func (m *ModulePrometheus) init() error {
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m.wg = &sync.WaitGroup{}
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global.OnlineUsersGauge = prometheus.NewGauge(prometheus.GaugeOpts{
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Name: "gateway_online_users_total",
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Help: "Total number of online users in gateway",
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})
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prometheus.MustRegister(global.OnlineUsersGauge)
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return nil
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}
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func (m *ModulePrometheus) start() error {
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m.wg.Add(1)
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go func() {
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defer m.wg.Done()
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m.server = &http.Server{
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Addr: fmt.Sprintf("%v:%v", config.Get().Metric.Prometheus.Address, config.Get().Metric.Prometheus.Port),
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Handler: promhttp.Handler(),
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}
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if err := m.server.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
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log.Errorf("prometheus server failed: %v", err.Error())
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}
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log.Infof("prometheus server stop.")
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}()
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return nil
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}
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func (m *ModulePrometheus) stop() error {
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if err := m.server.Shutdown(context.Background()); err != nil {
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log.Errorf("stop prometheus server failed: %v", err)
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}
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m.wg.Wait()
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return nil
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}
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