如果出现无法载图的情况，请检查与github的连通性
各个团队，开发、运维、测试等团队，需要从代码仓库拉取代码，编译代码，比方说java代码，需要编译，mvn编译，生成一个jar或者war结尾的文件；go代码，go build编译，会生成一个二进制文件; python代码不需要编译，如app.py，python app.py
linux安装go环境
在官网下载go的二进制包go1.22.0.linux-amd64.tar.gz
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| wget https://studygolang.com/dl/golang/go1.22.0.linux-amd64.tar.gz
tar -C /usr/local -xzf go1.22.0.linux-amd64.tar.gz
export PATH=$PATH:/usr/local/go/bin
source ~/.bashrc
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编译go代码
go代码例子
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| cat main.go
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 to study!!!",
})
})
r.Run(":8888")
}
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编译
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go mod init test
go env -w GOPROXY=https://goproxy.cn,direct
go mod tidy
CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o k8s-demo main.go
输出二进制文件k8s-demo，GOOS(系统)=linux GOARCH(cpu架构)=amd64，-o指定名字
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容器
Dockerfile
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| FROM alpine
WORKDIR /data/app/
ADD k8s-demo .
CMD ["/bin/sh","-c","./k8s-demo"]
EXPOSE 8888
docker build -t=k8s.demo:v1 .
docker save k8s.demo:v1 -o k8sdemo.tar.gz
scp k8sdemo.tar.gz ws-k8s-node1:~
scp k8sdemo.tar.gz ws-k8s-node2:~
scp k8sdemo.tar.gz ws-k8s-node3:~
ctr -n=k8s.io image import k8sdemo.tar.gz
...
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其实也可以传到harbor里，让k8s拉，但是懒了直接scp得了
k8s
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|
cat k8s.yaml
kind: Deployment
apiVersion: apps/v1
metadata:
name: go-deployment
spec:
replicas: 1
selector:
matchLabels:
release: stable
template:
metadata:
labels:
release: stable
spec:
containers:
- name: go
image: k8s.demo:v1
imagePullPolicy: Never
cat k8s_svc.yaml
apiVersion: v1
kind: Service
metadata:
name: go-service
spec:
selector:
release: stable
type: NodePort
ports:
- name: http
port: 8888
targetPort: 8888
protocol: "TCP"
- name: https
port: 443
targetPort: 443
protocol: "TCP"
kubectl apply -f .
deployment.apps/go-deployment created
service/go-service created
kubectl get pods
NAME READY STATUS RESTARTS AGE
go-deployment-6cd4b76477-lq8ff 1/1 Running 0 2m11s
kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
go-service NodePort 10.111.142.58 <none> 8888:30949/TCP,443:31126/TCP 2m16s
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