在Kubernetes泊坞窗图像运行时Gunicorn不断引导员工(Gunicorn continu

我dockerized烧瓶中的应用程序，使用gunicorn为它服务。 我Dockerfile的最后一行是：

CMD source activate my_env && gunicorn --timeout 333 --bind 0.0.0.0:5000 app:app

当运行本地应用程序 - 无论是直在我的控制台，没有搬运工，或

docker run -dit \
           --name my-app \
           --publish 5000:5000 \
           my-app:latest

它启动了罚款。 我得到一个日志，如：

[2018-12-04 19:32:30 +0000] [8] [INFO] Starting gunicorn 19.7.1
[2018-12-04 19:32:30 +0000] [8] [INFO] Listening at: http://0.0.0.0:5000 (8)
[2018-12-04 19:32:30 +0000] [8] [INFO] Using worker: sync
[2018-12-04 19:32:30 +0000] [16] [INFO] Booting worker with pid: 16
<my app's output>

当在运行相同的图像k8s我得到

[2018-12-10 21:09:42 +0000] [5] [INFO] Starting gunicorn 19.7.1
[2018-12-10 21:09:42 +0000] [5] [INFO] Listening at: http://0.0.0.0:5000 (5)
[2018-12-10 21:09:42 +0000] [5] [INFO] Using worker: sync
[2018-12-10 21:09:42 +0000] [13] [INFO] Booting worker with pid: 13
[2018-12-10 21:10:52 +0000] [16] [INFO] Booting worker with pid: 16
[2018-12-10 21:10:53 +0000] [19] [INFO] Booting worker with pid: 19
[2018-12-10 21:14:40 +0000] [22] [INFO] Booting worker with pid: 22
[2018-12-10 21:16:14 +0000] [25] [INFO] Booting worker with pid: 25
[2018-12-10 21:16:25 +0000] [28] [INFO] Booting worker with pid: 28
<etc>

我的K8S部署YAML看起来像

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: my-deployment
spec:
  replicas: 1
  selector:
    matchLabels:
      app: my-app
  template:
    metadata:
      labels:
        app: my-app
    spec:
      imagePullSecrets:
        - name: regcred
      containers:
        - name: my-frontend
          image: my-registry/my-frontend:latest
          ports:
            - containerPort: 80
        - name: my-backend
          image: my-registry/my-backend:latest
          ports:
            - containerPort: 5000

在这里，问题的容器是my-backend 。 任何想法，为什么发生这种情况？

更新：由于我写了这个，那个印有事件列表kubectl describe pods具有以下被更新：

Warning  FailedMount            9m55s                  kubelet, minikube  MountVolume.SetUp failed for volume "default-token-k2shm" : Get https://localhost:8443/api/v1/namespaces/default/secrets/default-token-k2shm: net/http: TLS handshake timeout
Warning  FailedMount            9m53s (x2 over 9m54s)  kubelet, minikube  MountVolume.SetUp failed for volume "default-token-k2shm" : secrets "default-token-k2shm" is forbidden: User "system:node:minikube" cannot get secrets in the namespace "default": no path found to object
Normal   SuccessfulMountVolume  9m50s                  kubelet, minikube  MountVolume.SetUp succeeded for volume "default-token-k2shm"

不知道这是有关我的问题

Answer 1:

我解决了这个由容器下添加资源 - 矿井需要更多的内存。

resources:
  requests:
    memory: "512Mi"
    cpu: 0.1
  limits:
    memory: "1024Mi"
    cpu: 1.0

希望帮助。

文章来源: Gunicorn continually booting workers when run in a Docker image on Kubernetes