Small fixes to type names

Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)

execdriver/chroot/driver.go

@@ -13,7 +13,7 @@ const (
 )
 
 func init() {
-	execdriver.RegisterDockerInitFct(DriverName, func(args *execdriver.DockerInitArgs) error {
+	execdriver.RegisterInitFunc(DriverName, func(args *execdriver.InitArgs) error {
 		if err := mount.ForceMount("proc", "proc", "proc", ""); err != nil {
 			return err
 		}

execdriver/driver.go

@@ -13,16 +13,16 @@ var (
 	ErrDriverNotFound          = errors.New("The requested docker init has not been found")
 )
 
-var dockerInitFcts map[string]DockerInitFct
+var dockerInitFcts map[string]InitFunc
 
 type (
 	StartCallback func(*Process)
-	DockerInitFct func(i *DockerInitArgs) error
+	InitFunc      func(i *InitArgs) error
 )
 
-func RegisterDockerInitFct(name string, fct DockerInitFct) error {
+func RegisterInitFunc(name string, fct InitFunc) error {
 	if dockerInitFcts == nil {
-		dockerInitFcts = make(map[string]DockerInitFct)
+		dockerInitFcts = make(map[string]InitFunc)
 	}
 	if _, ok := dockerInitFcts[name]; ok {
 		return ErrDriverAlreadyRegistered
@@ -31,7 +31,7 @@ func RegisterDockerInitFct(name string, fct DockerInitFct) error {
 	return nil
 }
 
-func GetDockerInitFct(name string) (DockerInitFct, error) {
+func GetInitFunc(name string) (InitFunc, error) {
 	fct, ok := dockerInitFcts[name]
 	if !ok {
 		return nil, ErrDriverNotFound
@@ -39,7 +39,8 @@ func GetDockerInitFct(name string) (DockerInitFct, error) {
 	return fct, nil
 }
 
-type DockerInitArgs struct {
+// Args provided to the init function for a driver
+type InitArgs struct {
 	User       string
 	Gateway    string
 	Ip         string
@@ -51,6 +52,8 @@ type DockerInitArgs struct {
 	Driver     string
 }
 
+// Driver specific information based on
+// processes registered with the driver
 type Info interface {
 	IsRunning() bool
 }
@@ -58,12 +61,10 @@ type Info interface {
 type Driver interface {
 	Run(c *Process, startCallback StartCallback) (int, error) // Run executes the process and blocks until the process exits and returns the exit code
 	Kill(c *Process, sig int) error
-	// TODO: @crosbymichael @creack wait should probably return the exit code
 	Wait(id string) error // Wait on an out of process...process - lxc ghosts
-	Version() string
-	Name() string
-
-	Info(id string) Info // "temporary" hack (until we move state from core to plugins)
+	Version() string      // Driver version number
+	Name() string         // Driver name
+	Info(id string) Info  // "temporary" hack (until we move state from core to plugins)
 }
 
 // Network settings of the container

execdriver/lxc/driver.go

@@ -18,7 +18,7 @@ import (
 const DriverName = "lxc"
 
 func init() {
-	execdriver.RegisterDockerInitFct(DriverName, func(args *execdriver.DockerInitArgs) error {
+	execdriver.RegisterInitFunc(DriverName, func(args *execdriver.InitArgs) error {
 		if err := setupHostname(args); err != nil {
 			return err
 		}

execdriver/lxc/init.go

@@ -13,7 +13,7 @@ import (
 	"syscall"
 )
 
-func setupHostname(args *execdriver.DockerInitArgs) error {
+func setupHostname(args *execdriver.InitArgs) error {
 	hostname := getEnv(args, "HOSTNAME")
 	if hostname == "" {
 		return nil
@@ -22,7 +22,7 @@ func setupHostname(args *execdriver.DockerInitArgs) error {
 }
 
 // Setup networking
-func setupNetworking(args *execdriver.DockerInitArgs) error {
+func setupNetworking(args *execdriver.InitArgs) error {
 	if args.Ip != "" {
 		// eth0
 		iface, err := net.InterfaceByName("eth0")
@@ -67,7 +67,7 @@ func setupNetworking(args *execdriver.DockerInitArgs) error {
 }
 
 // Setup working directory
-func setupWorkingDirectory(args *execdriver.DockerInitArgs) error {
+func setupWorkingDirectory(args *execdriver.InitArgs) error {
 	if args.WorkDir == "" {
 		return nil
 	}
@@ -78,7 +78,7 @@ func setupWorkingDirectory(args *execdriver.DockerInitArgs) error {
 }
 
 // Takes care of dropping privileges to the desired user
-func changeUser(args *execdriver.DockerInitArgs) error {
+func changeUser(args *execdriver.InitArgs) error {
 	if args.User == "" {
 		return nil
 	}
@@ -106,7 +106,7 @@ func changeUser(args *execdriver.DockerInitArgs) error {
 	return nil
 }
 
-func setupCapabilities(args *execdriver.DockerInitArgs) error {
+func setupCapabilities(args *execdriver.InitArgs) error {
 
 	if args.Privileged {
 		return nil
@@ -142,7 +142,7 @@ func setupCapabilities(args *execdriver.DockerInitArgs) error {
 	return nil
 }
 
-func getEnv(args *execdriver.DockerInitArgs, key string) string {
+func getEnv(args *execdriver.InitArgs, key string) string {
 	for _, kv := range args.Env {
 		parts := strings.SplitN(kv, "=", 2)
 		if parts[0] == key && len(parts) == 2 {

sysinit/sysinit.go

@@ -12,7 +12,7 @@ import (
 )
 
 // Clear environment pollution introduced by lxc-start
-func setupEnv(args *execdriver.DockerInitArgs) {
+func setupEnv(args *execdriver.InitArgs) {
 	os.Clearenv()
 	for _, kv := range args.Env {
 		parts := strings.SplitN(kv, "=", 2)
@@ -23,9 +23,9 @@ func setupEnv(args *execdriver.DockerInitArgs) {
 	}
 }
 
-func executeProgram(args *execdriver.DockerInitArgs) error {
+func executeProgram(args *execdriver.InitArgs) error {
 	setupEnv(args)
-	dockerInitFct, err := execdriver.GetDockerInitFct(args.Driver)
+	dockerInitFct, err := execdriver.GetInitFunc(args.Driver)
 	if err != nil {
 		panic(err)
 	}
@@ -71,7 +71,7 @@ func SysInit() {
 	// Propagate the plugin-specific container env variable
 	env = append(env, "container="+os.Getenv("container"))
 
-	args := &execdriver.DockerInitArgs{
+	args := &execdriver.InitArgs{
 		User:       *user,
 		Gateway:    *gateway,
 		Ip:         *ip,