部署go项目到k8s集群

目录

• 部署go项目到k8s集群
• go项目
  • 项目代码
  • Dockerfile
  • go交叉编译linux可执行文件
  • docker编译镜像
• k8s部署
  • bs-namespace.yaml
  • bs-service.yaml
  • bs-deployment.yaml
  • NodePort模式访问

go项目

项目代码

package main

import "github.com/gin-gonic/gin"

func main() {
        r := gin.Default()
        r.GET("/ping", func(c *gin.Context) {
                c.JSON(200, gin.H{
                        "message": "welcome jeff!!!",
                })
        })
        r.Run(":8888")
}

Dockerfile

FROM docker.sharkgulf.cn/public/alpine-ca:3.10

RUN mkdir -p /app /app/log

COPY ./bikesvc /app/

WORKDIR /app

VOLUME [ "/app/log" ]

RUN chmod +x ./bikesvc

EXPOSE 8888

ENTRYPOINT ["./bikesvc"]

go交叉编译linux可执行文件

CGO_ENABLED=0 GOOS=linux  go build -a -installsuffix cgo -o . .

docker编译镜像

// docker build -t 标签:版本 go可执行文件位置
docker build -t docker.sharkgulf.cn/shark-bs/gin:v1 .

k8s部署

因为用的是本地镜像测试，所以在每一台node节点创建生成镜像

bs-namespace.yaml

# 名称空间
kind: Namespace
apiVersion: v1
metadata:
  name: sg-bs
  labels:
    release: stable

bs-service.yaml

# NodePort模式service
apiVersion: v1
kind: Service
metadata:
  name: bs-service
  namespace: sg-bs
spec:
  selector:
    release: stable
  type: NodePort
  ports:
    - name: http
      port: 8888
      targetPort: 8888
      protocol: "TCP"
    - name: https
      port: 443
      targetPort: 443
      protocol: "TCP"

bs-deployment.yaml

# Deployment控制器
kind: Deployment
apiVersion: apps/v1
metadata:
  name: bs-deployment
  namespace: sg-bs
spec:
  replicas: 1
  selector:
    matchLabels:
      release: stable
  template:
    metadata:
      labels:
        release: stable
    spec:
      containers:
        - name: bikesvc
          image: docker.sharkgulf.cn/shark-bs/gin:v1
          imagePullPolicy: Never  # 用本地镜像

NodePort模式访问

http://192.168.0.216:31720/ping
{"message":"welcome jeff!!!"}