svc.yaml
apiVersion: v1
kind: Service
metadata:
name: helloworld
labels:
app: helloworld
spec:
type: NodePort
ports:
- port: 8080
targetPort: 8080
nodePort: 30080
protocol: TCP
name: web
selector:
app: helloworld
deploy.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: helloworld-deployment
labels:
app: helloworld
spec:
replicas: 3
selector:
matchLabels:
app: helloworld
template:
metadata:
labels:
app: helloworld
spec:
containers:
- name: helloworld
image: liyongweicn/helloworld_springboot:v2
ports:
- containerPort: 8080
运行
kubectl apply -f svc.yaml
kubectl apply -f deploy.yaml
然后访问<节点的IP>:30080/hello即可。
通过查看Pod的log可以看到，每次访问通过轮询的方式实现了负载均衡。
kubectl logs helloworld-deployment-548748dcc5-98jn9
