Kubernetes 部署python flask应用

Dockerfile

# Use a base image with Python 3.9 installed
FROM python:3.11

# Set the working directory inside the container
WORKDIR /app

# Copy the requirements file to the working directory
COPY requirements.txt .

# Install the required dependencies
RUN pip install --no-cache-dir -r requirements.txt

# Copy the application code to the working directory
COPY . .

# Expose the port that the Flask application will run on
EXPOSE 5000

# Set the environment variable for Flask
ENV FLASK_APP=app.py

# Run the Flask application (0.0.0.0意味着向所有IP开放)
CMD [ "flask", "run","--host","0.0.0.0","--port","5000"]

Kubernetes yaml file

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
    name: gptapi-ingress
    namespace: chatgpt
    annotations:
      kubernetes.io/ingress.class: "nginx"
      cert-manager.io/issuer: "namespace/letsencrypt-dns01"
      nginx.ingress.kubernetes.io/ssl-redirect: "true"
spec:
    tls:
    - hosts:
      - test.com
      secretName: gptapi-selfsigned-cert-tls
    rules:
        - host: test.com
          http:
              paths:
                  - pathType: Prefix
                    path: "/"
                    backend:
                        service:
                            name: chatgpt-api-service
                            port:
                                number: 80
---
apiVersion: cert-manager.io/v1
kind: Certificate
metadata:
  name: gptapi-selfsigned-cert-tls
  namespace: chatgpt
spec:
  dnsNames:
    - test.com
  secretName: gptapi-selfsigned-cert-tls
  issuerRef:
    name: letsencrypt-dns01
---
apiVersion: v1
kind: Service
metadata:
    name: chatgpt-api-service
    namespace: chatgpt
spec:
    selector:
        app: chatgpt_api_app
    ports:
        - name: "8080www"
          protocol: TCP
          port: 80
          targetPort: 5000
    clusterIP: None
---
apiVersion: apps/v1
kind: Deployment
metadata:
    name: chatgpt-api-deployment
    namespace: chatgpt
spec:
    replicas: 1
    selector:
        matchLabels:
            app: chatgpt_api_app
    template:
        metadata:
            labels:
                app: chatgpt_api_app
        spec:
            containers:
                - name: chatgpt-container
                  image: registry-intl-vpc.ap-southeast-1.aliyuncs.com/namespace/project:latest
                  imagePullPolicy: Always
                  ports:
                      - containerPort: 5000
                        name: port80test
            imagePullSecrets:
                - name: alicloudwwwkey