K8s部署发布Golang应用程序的实现方法
作者:luoguo
alertGo程序可以参考上篇文章,主要用于alertmanager实现钉钉报警
创建dockerfile
FROM golang:1.14-alpine ENV GOPROXY=https://goproxy.cn WORKDIR /build COPY . . EXPOSE 8088 RUN mkdir /app RUN go mod tidy RUN go build -o /app/alertGo alertGo.go WORKDIR /app CMD ["/app/alertGo"]
打包并且推送
docker build -t 10.206.16.4/k8s-go/alert.sentsss.com:v2 . docker push 10.206.16.4/k8s-go/alert.sentsss.com:v2
创建namespace
apiVersion: v1 kind: Namespace metadata: name: k8s-go
创建deployment
apiVersion: apps/v1 kind: Deployment metadata: name: alertgo namespace: k8s-go spec: selector: matchLabels: app: alertgo replicas: 2 template: metadata: labels: app: alertgo spec: imagePullSecrets: - name: registry-pull-secret containers: - name: alertgo image: 10.206.16.4/k8s-go/alert.sentsss.com:v2 ports: - containerPort: 8088 livenessProbe: httpGet: path: / port: 8088 initialDelaySeconds: 30 periodSeconds: 10 successThreshold: 1 failureThreshold: 3 timeoutSeconds: 1 readinessProbe: httpGet: path: / port: 8088 initialDelaySeconds: 30 periodSeconds: 10 successThreshold: 1 failureThreshold: 3 timeoutSeconds: 1 lifecycle: preStop: exec: command: ["/bin/bash","-c","sleep 20"] resources: limits: cpu: 20m memory: 20Mi requests: cpu: 10m memory: 10Mi
创建service
apiVersion: v1 kind: Service metadata: name: alertgo namespace: k8s-go spec: selector: app: alertgo ports: - port: 80 targetPort: 8088
创建ingress
kind: Ingress # 对象类型 apiVersion: networking.k8s.io/v1beta1 metadata: name: alertgo namespace: k8s-go spec: rules: - host: alertgo.xxx.com http: paths: - path: / backend: serviceName: alertgo servicePort: 80
创建hpa
kind: HorizontalPodAutoscaler # 对象类型,简称 hpa,水平自动伸缩 apiVersion: autoscaling/v2beta2 # autoscaling/v2beta2 与 autoscaling/v1 的 API 有很大的不同,注意识别两者的差异 metadata: name: alertgo namespace: fronted spec: scaleTargetRef: # 伸缩的目标对象 apiVersion: apps/v1 # 对象版本 kind: Deployment # 目标对象的类型 name: alertgo # 目标对象的名称 minReplicas: 3 # 最小副本数 maxReplicas: 6 # 最大副本数 metrics: # 指标 - type: Resource # 类型:资源 resource: name: memory # 内存 target: type: Utilization averageUtilization: 70 # 1% 这个值是为了实验,具体值请参考业务方实际情况而定 - type: Resource resource: name: cpu target: type: Utilization averageUtilization: 70
结果查看
[root@k8s-master-01 alertGo]# kubectl get pods,svc,ingress,hpa -n k8s-go
NAME READY STATUS RESTARTS AGE
pod/alertgo-5bc79ccd65-8thmw 1/1 Running 0 37m
pod/alertgo-5bc79ccd65-dm8ll 1/1 Running 0 38m
pod/alertgo-5bc79ccd65-m9cd4 0/1 ContainerCreating 0 0sNAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/alertgo ClusterIP 10.1.140.126 <none> 80/TCP 65mNAME HOSTS ADDRESS PORTS AGE
ingress.extensions/alertgo alertgo.sentsss.com 80 34mNAME REFERENCE TARGETS MINPODS MAXPODS REPLICAS AGE
horizontalpodautoscaler.autoscaling/alertgo Deployment/alertgo 79%/70%, 10%/70% 2 6 2 15s
到此这篇关于K8s部署发布Golang应用程序的实现方法的文章就介绍到这了,更多相关K8s部署发布Golang内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家!