create.go

package main

import (
    "fmt"
    "os/exec"
    "os"
    "flag"
    "strconv"
)

func exec_command(program string, args ...string) {
    cmd := exec.Command(program, args...)
    cmd.Stdin = os.Stdin;
    cmd.Stdout = os.Stdout;
    cmd.Stderr = os.Stderr;
    err := cmd.Run()

    if err != nil {
        fmt.Printf("%v\n", err)
    }
}

func main() {
    // Args
    starter := flag.String("image","user","The creation process will start from this user, and add tag behind this value.")
    starterPort := flag.Int("port",9487,"The port used by current creation, will be used by a ssh service. And will increase by 1 after a creation process is finished.")
    totalNum := flag.Int("num",3,"The number of the ssh service we will create.")
    dryRun := flag.Bool("r",false,"Run the command, default is `false`, you need to using -r to specify.")
    clean := flag.Bool("c",false,"Clean all the existed container, default is `false`, using `-c` to specify.")

    flag.Parse()

    if *clean{
        exec_command("./main.sh", "cleanall")
        os.Exit(1)
    }

    for i:=0; i< *totalNum; i++{
        fmt.Println("current image name: ", *starter+strconv.Itoa(i))
        fmt.Println("current specified port: ", strconv.Itoa(*starterPort+i))
        if *dryRun{
            // run execute command
            exec_command("./main.sh","build",*starter+strconv.Itoa(i),strconv.Itoa(*starterPort+i))
        }
    }

    if *dryRun == false {
        fmt.Println("Running command in Dry-Run mode, do nothing :D, please using -h to check the support of this program!")
    }
}