59 lines
1.3 KiB
Go
59 lines
1.3 KiB
Go
package docker
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import (
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"bytes"
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"fmt"
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"github.com/mitchellh/packer/packer"
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"log"
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"os/exec"
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"strings"
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)
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type DockerDriver struct {
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Ui packer.Ui
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}
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func (d *DockerDriver) Pull(image string) error {
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cmd := exec.Command("docker", "pull", image)
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return runAndStream(cmd, d.Ui)
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}
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func (d *DockerDriver) StartContainer(config *ContainerConfig) (string, error) {
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// Args that we're going to pass to Docker
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args := []string{"run", "-d", "-i", "-t"}
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if len(config.Volumes) > 0 {
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volumes := make([]string, 0, len(config.Volumes))
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for host, guest := range config.Volumes {
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volumes = append(volumes, fmt.Sprintf("%s:%s", host, guest))
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}
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args = append(args, "-v", strings.Join(volumes, ","))
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}
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args = append(args, config.Image, "/bin/bash")
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// Start the container
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var stdout, stderr bytes.Buffer
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cmd := exec.Command("docker", args...)
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cmd.Stdout = &stdout
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cmd.Stderr = &stderr
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log.Printf("Starting container with args: %v", args)
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if err := cmd.Start(); err != nil {
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return "", err
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}
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log.Println("Waiting for container to finish starting")
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if err := cmd.Wait(); err != nil {
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return "", err
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}
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// Capture the container ID, which is alone on stdout
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return strings.TrimSpace(stdout.String()), nil
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}
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func (d *DockerDriver) StopContainer(id string) error {
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return exec.Command("docker", "kill", id).Run()
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}
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