Simple wrapper to execute (interactive/non interactive) docker image

wrapper.go

package main

import (
	"fmt"
	"log"
	"os"
	"os/exec"
)

const (
	dockerRegistry    = "XXXXXXXXXXXXX.dkr.ecr.eu-central-1.amazonaws.com"
	dockerImage  = dockerRegistry + "/XXXXXXXX"
	cliLauncherScript = "non_interactive_cli_launcher.py"
)

func isStdinPipedToFile() bool {
	fileInfo, _ := os.Stdin.Stat()
	return fileInfo.Mode()&os.ModeCharDevice == 0
}

func prepareDockerParameters(allParameters []string, interactive bool) []string {
	args := []string{"run", "--rm", "-u",
		fmt.Sprintf("%d:%d", os.Getuid(), os.Getgid()),
		"-v", fmt.Sprintf("%s:/work/", os.Getenv("PWD")),
		"-v", fmt.Sprintf("%s/.xxxxx:/opt/xxxx/", os.Getenv("HOME")),
		"--hostname=myhostname"}

	if interactive {
		args = append(args, "-it")
	} else if isStdinPipedToFile() {
		args = append(args, "-i")
	}

	args = append(args, dockerImage)
	if !interactive {
		args = append(args, "python", cliLauncherScript)
	}
	args = append(args, allParameters...)
	return args
}

func executeDocker(allParameters []string, interactive bool) {
	args := prepareDockerParameters(allParameters, interactive)
	cmd := exec.Command("docker", args...)
	cmd.Stderr = os.Stderr
	cmd.Stdout = os.Stdout
	cmd.Stdin = os.Stdin
	if err := cmd.Run(); err != nil {
		log.Fatal(err)
	}
}

func main() {
	allParameters := os.Args[1:]
	if len(allParameters) > 0 {
		executeDocker(allParameters, false)
	} else {
		if isStdinPipedToFile() {
			executeDocker(allParameters, false)
		} else {
			executeDocker(allParameters, true)
		}
	}
}