Fix pod exec options

Change the command field to an array of strings.

pkg/api/types.go

@@ -1354,7 +1354,7 @@ type PodExecOptions struct {
 	Container string
 
 	// Command is the remote command to execute
-	Command string
+	Command []string
 }
 
 // PodProxyOptions is the query options to a Pod's proxy call

pkg/api/v1/conversion.go

@@ -1715,7 +1715,12 @@ func init() {
 			out.Stderr = in.Stderr
 			out.TTY = in.TTY
 			out.Container = in.Container
-			out.Command = in.Command
+			if in.Command != nil {
+				out.Command = make([]string, len(in.Command))
+				for i := range in.Command {
+					out.Command[i] = in.Command[i]
+				}
+			}
 			return nil
 		},
 		func(in *newer.PodExecOptions, out *PodExecOptions, s conversion.Scope) error {
@@ -1727,7 +1732,12 @@ func init() {
 			out.Stderr = in.Stderr
 			out.TTY = in.TTY
 			out.Container = in.Container
-			out.Command = in.Command
+			if in.Command != nil {
+				out.Command = make([]string, len(in.Command))
+				for i := range in.Command {
+					out.Command[i] = in.Command[i]
+				}
+			}
 			return nil
 		},
 		func(in *PodList, out *newer.PodList, s conversion.Scope) error {

pkg/api/v1/types.go

@@ -1340,7 +1340,7 @@ type PodExecOptions struct {
 	Container string `json:"container,omitempty" description:"the container in which to execute the command. Defaults to only container if there is only one container in the pod."`
 
 	// Command is the remote command to execute
-	Command string `json:"command" description:"the command to execute"`
+	Command []string `json:"command" description:"the command to execute"`
 }
 
 // PodProxyOptions is the query options to a Pod's proxy call

pkg/api/v1beta1/types.go

@@ -1208,7 +1208,7 @@ type PodExecOptions struct {
 	Container string `json:"container,omitempty" description:"the container in which to execute the command. Defaults to only container if there is only one container in the pod."`
 
 	// Command is the remote command to execute
-	Command string `json:"command" description:"the command to execute"`
+	Command []string `json:"command" description:"the command to execute"`
 }
 
 // PodProxyOptions is the query options to a Pod's proxy call

pkg/api/v1beta2/types.go

@@ -1228,7 +1228,7 @@ type PodExecOptions struct {
 	Container string `json:"container,omitempty" description:"the container in which to execute the command. Defaults to only container if there is only one container in the pod."`
 
 	// Command is the remote command to execute
-	Command string `json:"command" description:"the command to execute"`
+	Command []string `json:"command" description:"the command to execute"`
 }
 
 // PodProxyOptions is the query options to a Pod's proxy call

pkg/api/v1beta3/conversion.go

@@ -1850,7 +1850,12 @@ func convert_v1beta3_PodExecOptions_To_api_PodExecOptions(in *PodExecOptions, ou
 	out.Stderr = in.Stderr
 	out.TTY = in.TTY
 	out.Container = in.Container
-	out.Command = in.Command
+	if in.Command != nil {
+		out.Command = make([]string, len(in.Command))
+		for i := range in.Command {
+			out.Command[i] = in.Command[i]
+		}
+	}
 	return nil
 }
 
@@ -1863,7 +1868,12 @@ func convert_api_PodExecOptions_To_v1beta3_PodExecOptions(in *newer.PodExecOptio
 	out.Stderr = in.Stderr
 	out.TTY = in.TTY
 	out.Container = in.Container
-	out.Command = in.Command
+	if in.Command != nil {
+		out.Command = make([]string, len(in.Command))
+		for i := range in.Command {
+			out.Command[i] = in.Command[i]
+		}
+	}
 	return nil
 }
 

pkg/api/v1beta3/types.go

@@ -1340,7 +1340,7 @@ type PodExecOptions struct {
 	Container string `json:"container,omitempty" description:"the container in which to execute the command. Defaults to only container if there is only one container in the pod."`
 
 	// Command is the remote command to execute
-	Command string `json:"command" description:"the command to execute"`
+	Command []string `json:"command" description:"the command to execute"`
 }
 
 // PodProxyOptions is the query options to a Pod's proxy call

pkg/registry/pod/rest.go

@@ -261,7 +261,9 @@ func ExecLocation(getter ResourceGetter, connInfo client.ConnectionInfoGetter, c
 	if opts.TTY {
 		params.Add(api.ExecTTYParam, "1")
 	}
-	params.Add("command", opts.Command)
+	for _, c := range opts.Command {
+		params.Add("command", c)
+	}
 	loc := &url.URL{
 		Scheme:   nodeScheme,
 		Host:     fmt.Sprintf("%s:%d", nodeHost, nodePort),