基于K8S运行一个猜字游戏程序：包含完整步骤|附带Go开发贪吃蛇小游戏

1）编写Dockerfile：使用Dockerfile构建一个Docker镜像，其中包含应用程序和相关的依赖项。2）构建Docker镜像：使用docker build命令构建Docker镜像。例如，docker build -t my-image:1.0 .将构建一个名为my-image的镜像，并将版本号设置为1.03）将Docker镜像推送到镜像仓库：可以使用docker push命令将Docker镜像推送到Docker镜像仓库中，以便在Kubernetes集群中使用。例如，docker push my-image:1.0将镜像推送到Docker Hub中。4）编写Kubernetes清单文件：编写Kubernetes清单文件，其中包含Deployment、Service、ConfigMap等资源的定义，以便将应用程序部署到Kubernetes集群中。在清单文件中，需要指定镜像名称和版本，容器端口等信息。5）应用Kubernetes清单文件：使用kubectl apply命令将Kubernetes清单文件应用到Kubernetes集群中。例如，kubectl apply -f my-app.yaml将应用名为my-app的清单文件。6）查看应用状态：可以使用kubectl命令查看应用程序在Kubernetes中的状态。例如，kubectl get pods将列出所有正在运行的Pod。7）访问应用程序：使用Service的IP地址和端口号可以访问应用程序。根据Service类型的不同，访问方式也有所不同。

[root@xianchaomaster1~]# mkdir caizi[root@xianchaomaster1~]# cd caizi/[root@xianchaomaster1caizi]# cat main.go

package main
import (  "fmt"  "math/rand"  "time")
const maxGuesses = 10
func main() {  rand.Seed(time.Now().UnixNano())  number := rand.Intn(100) + 1
  fmt.Println("I'm thinking of a number between 1 and 100.")  fmt.Printf("You have %d guesses.\n", maxGuesses)
  for guesses := 1; guesses <= maxGuesses; guesses++ {    fmt.Printf("Guess #%d: ", guesses)    var guess int    _, err := fmt.Scanln(&guess)    if err != nil {      fmt.Println("Invalid input. Please enter an integer.")      continue    }    if guess < 1 || guess > 100 {      fmt.Println("Invalid input. Please enter a number between 1 and 100.")      continue    }    if guess < number {      fmt.Println("Too low.")    } else if guess > number {      fmt.Println("Too high.")    } else {      fmt.Printf("Correct! You guessed the number in %d guesses.\n", guesses)      return    }  }
  fmt.Printf("Sorry, you did not guess the number. It was %d.\n", number)}

[root@xianchaomaster1caizi]# go mod init test

[root@xianchaomaster1caizi]# go env -w GOPROXY=https://goproxy.cn,direct

[root@xianchaomaster1caizi]# go mod tidy

[root@xianchaomaster1caizi]# CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o k8s-demo main.go

FROM alpineWORKDIR /appCOPY k8s-demo /appCMD ["/bin/sh","-c","./k8s-demo"]

[root@xianchaomaster1 caizi]# docker build -t docker.io/library/k8sgame:v1 .[root@xianchaomaster1 caizi]# docker save -o k8sgame.tar.gz docker.io/library/k8sgame:v1[root@xianchaomaster1 caizi]# scp k8sgame.tar.gz xianchaonode1:/root/[root@xianchaomaster1 caizi]# scp k8sgame.tar.gz xianchaonode2:/root/[root@xianchaonode1 ~]# ctr -n=k8s.io images import k8sgame.tar.gz[root@xianchaonode2 ~]# ctr -n=k8s.io images import k8sgame.tar.gz

apiVersion: apps/v1kind: Deploymentmetadata:  name: guess-gamespec:  replicas: 1  selector:    matchLabels:      app: guess-game  template:    metadata:      labels:        app: guess-game    spec:      containers:        - name: guess-game          image: docker.io/library/k8sgame:v1          imagePullPolicy: IfNotPresent          command: ["/bin/sh","-c","sleep 3600"]

[root@xianchaomaster1 caizi]# kubectl apply -fdeployment.yaml

[root@xianchaomaster1 caizi]# kubectl get pods -owide

NAME                        READY   STATUS   RESTARTS      IP                      guess-game-6c9b4df786-892ds 1/1      Running   0          10.244.121.35

[root@xianchaomaster1 caizi]# kubectl exec -it guess-game-6c9b4df786-892ds-- /bin/sh/app # ./k8s-demoI'm thinking of a number between 1 and 100.You have 10 guesses.Guess #1: