Execute scripts from /scripts folder inside a container

readme.md

Execute go run execute.go python test.py

execute.go

package main

import (
	"fmt"
	"log"
	"os"

	"github.com/ahmetalpbalkan/dexec"
	"github.com/fsouza/go-dockerclient"
)

func main() {
	endpoint := "unix:///var/run/docker.sock"
	dockerClient, err := docker.NewClient(endpoint)
	if err != nil {
		panic(err)
	}

	d := dexec.Docker{dockerClient}
	pwd, _ := os.Getwd()

	image := ""
	baseCmd := []string{}
	switch os.Args[1] {
	case "python":
		image = "python:alpine"
		baseCmd = []string{"python"}
	case "go":
		image = "golang:alpine"
		baseCmd = []string{"go", "run"}
	case "node":
		image = "node:alpine"
		baseCmd = []string{"node"}
	default:
		image = "busybox"
		baseCmd = []string{"/bin/sh", "-c"}
	}

	m, _ := dexec.ByCreatingContainer(
		docker.CreateContainerOptions{
			Config: &docker.Config{
				Image: image,
				Volumes: map[string]struct{}{
					"/scripts": struct{}{},
				},
			},
			HostConfig: &docker.HostConfig{
				Binds: []string{
					fmt.Sprintf("%s:%s", pwd+"/scripts", "/scripts"),
				},
			},
		},
	)

	baseCmd = append(baseCmd, "/scripts/"+os.Args[2])

	fmt.Println("Running", image, baseCmd)
	cmd := d.Command(m, baseCmd[0], baseCmd[1:]...)

	b, err := cmd.Output()
	if err != nil {
		log.Fatal(err)
	}
	log.Printf("%s", b)
}