我在minikube集群上部署了一个MERN堆栈应用程序,所有的pod都运行良好
但我试图从前台应用程序访问后端,但我收到了拒绝连接的错误
是什么原因造成的?
nodejs-deployment.yml
这是使用环境变量创建pod的部署
apiVersion: apps/v1
kind: Deployment
metadata:
name: backend
labels:
app: backend
spec:
replicas: 1
selector:
matchLabels:
app: backend
template:
metadata:
labels:
app: backend
spec:
containers:
- name: backend
image: arch-backend:1.0
ports:
- containerPort: 7500
env:
- name: ME_CONFIG_MONGODB_ADMINUSERNAME
valueFrom:
secretKeyRef:
name: mongodb-secret
key: mongo-db-username
- name: ME_CONFIG_MONGODB_ADMINPASSWORD
valueFrom:
secretKeyRef:
name: mongodb-secret
key: mongo-db-password
- name: ME_CONFIG_MONGODB_SERVER
valueFrom:
configMapKeyRef:
name: nodejs-configmap
key: database_url
imagePullPolicy: IfNotPresent
nodejs-service.yml
apiVersion: v1
kind: Service
metadata:
name: backend
spec:
selector:
app: backend
ports:
- protocol: TCP
port: 7500
targetPort: 7500
frontend.yml
apiVersion: apps/v1
kind: Deployment
metadata:
name: frontend
labels:
app: frontend
spec:
replicas: 1
selector:
matchLabels:
app: frontend
template:
metadata:
labels:
app: frontend
spec:
containers:
- name: frontend
image: arch-frontend:1.0
ports:
- containerPort: 80
env:
- name: REACT_APP_DEV_BASE_URL
value: backend
imagePullPolicy: IfNotPresent
---
apiVersion: v1
kind: Service
metadata:
name: frontend
spec:
selector:
app: frontend
type: LoadBalancer
ports:
- protocol: TCP
port: 3000
targetPort: 80
nodePort: 30012
kubectl的输出获得svc-o宽
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
backend ClusterIP 10.99.138.189 <none> 7500/TCP 44h app=backend
frontend LoadBalancer 10.110.160.225 <pending> 3000:30012/TCP 44h app=frontend
kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 45h <none>
mongodb-service ClusterIP 10.96.50.66 <none> 27017/TCP 44h app=mongodb