小编Cyb*_*igy的帖子

我有这个持久的音量声明

$ kubectl get pvc -ngitlab-managed-apps
NAME                           STATUS    VOLUME   CAPACITY   ACCESS MODES   STORAGECLASS   AGE
prometheus-prometheus-server   Pending                                                     0s


$ kubectl describe pvc prometheus-prometheus-server -ngitlab-managed-apps
Name:          prometheus-prometheus-server
Namespace:     gitlab-managed-apps
StorageClass:  
Status:        Pending
Volume:        
Labels:        app=prometheus
               chart=prometheus-9.5.2
               component=server
               heritage=Tiller
               release=prometheus
Annotations:   <none>
Finalizers:    [kubernetes.io/pvc-protection]
Capacity:      
Access Modes:  
VolumeMode:    Filesystem
Mounted By:    prometheus-prometheus-server-78bdf8f5b7-pkvcr
Events:
  Type    Reason         Age                From                         Message
  ----    ------         ----               ----                         -------
  Normal  FailedBinding  14s (x5 over 60s)  persistentvolume-controller  no persistent volumes available for this claim and no storage class is set …

我在实现单例时遇到问题，因为标记为 @singleton() 的类正在每个resolve() 上重新创建。

这是例子

// Foo.ts This is singleton and and must be created only once
import { injectable, singleton } from "tsyringe";

@injectable()
@singleton()
export class Foo {
  constructor() {
    console.log("Constractor of Foo");
  }
}

// Bar.ts this is Bar and should be created every time. It uses the singleton
import { inject, injectable, Lifecycle, scoped } from "tsyringe";
import { Foo } from "./Foo";

@injectable()
export class Bar {
  constructor(@inject("Foo") private foo: Foo) {
    console.log("Constractor of Bar"); …