Handle commit author & message the same way

builder/docker/config.go

@@ -32,7 +32,9 @@ type Config struct {
 	RunCommand []string `mapstructure:"run_command"`
 	Volumes    map[string]string
 	Privileged bool `mapstructure:"privileged"`
+	Author     string
 	Changes    []string
+	Message    string
 
 	// This is used to login to dockerhub to pull a private base container. For
 	// pushing to dockerhub, see the docker post-processors

builder/docker/driver.go

@@ -11,7 +11,7 @@ import (
 // a mock driver can be shimmed in.
 type Driver interface {
 	// Commit the container to a tag
-	Commit(id string, changes []string) (string, error)
+	Commit(id string, author string, changes []string, message string) (string, error)
 
 	// Delete an image that is imported into Docker
 	DeleteImage(id string) error

builder/docker/driver_docker.go

@@ -42,14 +42,20 @@ func (d *DockerDriver) DeleteImage(id string) error {
 	return nil
 }
 
-func (d *DockerDriver) Commit(id string, changes []string) (string, error) {
+func (d *DockerDriver) Commit(id string, author string, changes []string, message string) (string, error) {
 	var stdout bytes.Buffer
 	var stderr bytes.Buffer
 
 	args := []string{"commit"}
+	if author != "" {
+		args = append(args, "--author", author)
+	}
 	for _, change := range changes {
 		args = append(args, "--change", change)
 	}
+	if message != "" {
+		args = append(args, "--message", message)
+	}
 	args = append(args, id)
 
 	log.Printf("Committing container with args: %v", args)

builder/docker/driver_mock.go

@@ -76,7 +76,7 @@ type MockDriver struct {
 	VersionVersion string
 }
 
-func (d *MockDriver) Commit(id string, changes []string) (string, error) {
+func (d *MockDriver) Commit(id string, author string, changes []string, message string) (string, error) {
 	d.CommitCalled = true
 	d.CommitContainerId = id
 	return d.CommitImageId, d.CommitErr

builder/docker/step_commit.go

@@ -18,7 +18,7 @@ func (s *StepCommit) Run(state multistep.StateBag) multistep.StepAction {
 	ui := state.Get("ui").(packer.Ui)
 
 	ui.Say("Committing the container")
-	imageId, err := driver.Commit(containerId, config.Changes)
+	imageId, err := driver.Commit(containerId, config.Author, config.Changes, config.Message)
 	if err != nil {
 		state.Put("error", err)
 		ui.Error(err.Error())