从kubernetes中提取本地存储库docker映像

尝试在本地环境中使用Pod安装示例容器应用程序 我正在使用Docker桌面随附的kubernates集群.

Trying to install a sample container App using Pod in my local environment I'm using kubernates cluster coming with docker desktop.

我正在使用带有YML文件的bellow命令创建Pod kubectl创建-f test_image_pull.yml

I'm creating the Pod using bellow command with the YML file kubectl create -f test_image_pull.yml

apiVersion: v1
kind: Pod
metadata:
# value must be lower case
  name: sample-python-web-app
spec:
  containers:
    - name: sample-hello-world
      image: local/sample:latest
      imagePullPolicy: Always
      command: ["echo", "SUCCESS"]

用于构建映像的docker文件，并且如果您与docker run一起运行，则该容器可以正常运行

docker file used to build the image and this container running without any issue if u run with docker run

# Use official runtime python
FROM python:2.7-slim

# set work directory to app

WORKDIR /app
# Copy current directory
COPY . /app

# install needed packages
RUN pip install --trusted-host pypi.python.org -r requirement.txt

# Make port 80 available to outside container

EXPOSE 80

# Define environment variable

ENV NAME World

# Run app.py when the container launches

CMD ["python" , "app.py"]

from flask import Flask
from redis import Redis, RedisError
import os
import socket


#connect to redis
redis = Redis(host="redis", db=0, socket_connect_timeout=2, socket_timeout=2)
app = Flask(__name__)

@app.route("/")

def hello():
    try:
       visits = redis.incr("counter")
    except RedisError:
        visits = "<i>cannot connect to Redis, counter disabled</i>"

    html = "<h3>Hello {name}!</h3>" \
            "<b>Hostname:</b> {hostname}<br/>"  \
            "<b>Visits:</b> {visits}"


    return html.format (
              name=os.getenv("NAME", "world"),
              hostname=socket.gethostname(),
              visits=visits  
            )

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=80)            

Flask
Redis

一旦我描述了Pod，它就会在错误下方显示给我

Once I describe the pod it shows me below error

kubectl描述了pod sample-python-web-app

kubectl describe pod sample-python-web-app

Events:
  Type     Reason     Age                  From                     Message
  ----     ------     ----                 ----                     -------
  Normal   Scheduled  3m25s                default-scheduler        Successfully assigned default/sample-python-web-app to docker-desktop
  Normal   Pulling    97s (x4 over 3m22s)  kubelet, docker-desktop  Pulling image "local/sample:latest"
  Warning  Failed     94s (x4 over 3m17s)  kubelet, docker-desktop  Failed to pull image "local/sample:latest": rpc error: code = Unknown desc = Error response from daemon: pull access denied for local/sample, repository does not exist or may require 'docker login': denied: requested access to the resource is denied
  Warning  Failed     94s (x4 over 3m17s)  kubelet, docker-desktop  Error: ErrImagePull
  Normal   BackOff    78s (x6 over 3m16s)  kubelet, docker-desktop  Back-off pulling image "local/sample:latest"
  Warning  Failed     66s (x7 over 3m16s)  kubelet, docker-desktop  Error: ImagePullBackOff