Adds support for `docker inspect` to dockerserver

Signed-off-by: Brian Goff <cpuguy83@gmail.com> (github: cpuguy83)

backends/dockerserver.go

@@ -6,6 +6,7 @@ import (
 	"github.com/docker/libswarm/beam"
 	"github.com/dotcloud/docker/api"
 	"github.com/dotcloud/docker/pkg/version"
+	dockerContainerConfig "github.com/dotcloud/docker/runconfig"
 	"github.com/dotcloud/docker/utils"
 	"github.com/gorilla/mux"
 	"io"
@@ -13,10 +14,10 @@ import (
 	"net"
 	"net/http"
 	"net/url"
+	"strconv"
 	"strings"
 	"sync"
 	"time"
-	"strconv"
 )
 
 func DockerServer() beam.Sender {
@@ -73,6 +74,68 @@ func ping(out beam.Sender, version version.Version, w http.ResponseWriter, r *ht
 	return err
 }
 
+type containerJson struct {
+	Config          *dockerContainerConfig.Config
+	HostConfig      *dockerContainerConfig.HostConfig
+	ID              string
+	Created         string
+	Driver          string
+	ExecDriver      string
+	NetworkSettings struct {
+		Bridge      string
+		Gateway     string
+		IPAddress   string
+		IPPrefixLen int
+		Ports       map[string][]map[string]string
+	}
+	State struct {
+		Running    bool
+		StartedAt  string
+		FinishedAt string
+		ExitCode   int
+		Paused     bool
+		Pid        int
+	}
+	Name           string
+	Args           []string
+	ProcessLbael   string
+	ResolvConfPath string
+	HostnamePath   string
+	HostsPath      string
+	MountLabel     string
+	Volumes        map[string]string
+	VolumesRW      map[string]bool
+}
+
+func getContainerJson(out beam.Sender, containerID string) (containerJson, error) {
+	o := beam.Obj(out)
+
+	_, containerOut, err := o.Attach(containerID)
+	if err != nil {
+		return containerJson{}, err
+	}
+	container := beam.Obj(containerOut)
+	responseJson, err := container.Get()
+	if err != nil {
+		return containerJson{}, err
+	}
+	var response containerJson
+
+	if err = json.Unmarshal([]byte(responseJson), &response); err != nil {
+		return containerJson{}, err
+	}
+
+	return response, nil
+}
+
+func getContainerInfo(out beam.Sender, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
+	container, err := getContainerJson(out, vars["name"])
+	if err != nil {
+		return err
+	}
+	return writeJSON(w, http.StatusOK, container)
+}
+
 func getContainersJSON(out beam.Sender, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
 	if err := r.ParseForm(); err != nil {
 		return err
@@ -87,36 +150,10 @@ func getContainersJSON(out beam.Sender, version version.Version, w http.Response
 	var responses []interface{}
 
 	for _, name := range names {
-		_, containerOut, err := o.Attach(name)
+		response, err := getContainerJson(out, name)
 		if err != nil {
 			return err
 		}
-		container := beam.Obj(containerOut)
-		responseJson, err := container.Get()
-		if err != nil {
-			return err
-		}
-		var response struct {
-			ID      string
-			Created string
-			Name    string
-			Config  struct {
-				Cmd   []string
-				Image string
-			}
-			State struct {
-				Running    bool
-				StartedAt  string
-				FinishedAt string
-				ExitCode   int
-			}
-			NetworkSettings struct {
-				Ports map[string][]map[string]string
-			}
-		}
-		if err = json.Unmarshal([]byte(responseJson), &response); err != nil {
-			return err
-		}
 		created, err := time.Parse(time.RFC3339, response.Created)
 		if err != nil {
 			return err
@@ -334,6 +371,7 @@ func createRouter(out beam.Sender) (*mux.Router, error) {
 		"GET": {
 			"/_ping":                  ping,
 			"/containers/json":        getContainersJSON,
+			"/containers/{name}/json": getContainerInfo,
 		},
 		"POST": {
 			"/containers/create":           postContainersCreate,