kubernetes - Service
阿新 • • 發佈:2020-12-18
一:介紹
是kubernetes系統中提供的只能負載均衡器
1.服務發現
通過Label標籤獲取Pod
2.負載均衡
使用
kind: Deployment apiVersion: apps/v1 metadata: name: test-service spec: selector: matchLabels: app: test-svc template: metadata: labels: app: test-svc spec: containers: - name: nginx image: nginx:1.19.2 --- kind: Service apiVersion: v1 metadata: name: nginx-svc spec: ClusterIP: None selector: app: test-svc ports: - port: 80 targetPort: 80 name: http - port: 443 targetPort: 443 name: https
檢視
kubectl describe service nginx-svc
二:Service型別
1. ClusterIP
kind: Service
apiVersion: v1
metadata:
name: svc
spec:
ports:
- name: http
port: 80
targetPort: 80
nodePort: 30001
selector:
app: test-svc
type: NodePort
2. NodePort
3.HeadLess
kind: Service apiVersion: v1 metadata: name: test-svc spec: ClusterIP: None selector: app: test-svc ports: - post: 80 targetPort: 80 - post: 443 targetPort: 443
4.LoadBalancer
關聯雲服務商的彈性IP
kind: Service apiVersion: v1 metadata: name: loadbalancer spec: type: LoadBalancer ports: - port: 80 targetPort: 80 name: http selector: app: test --- kind: Deployment apiVersion: apps/v1 metadata: name: loadbalancer spec: selector: matchLabels: app: test template: metadata: labels: app: test spec: containers: - name: nginx image: nginx ports: - containerPort: 80 name: nginx-http