Add first version of createPodSandbox

Signed-off-by: Haiyan Meng <hmeng@redhat.com>

cmd/client/main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"encoding/json"
 	"fmt"
 	"log"
 	"net"
@@ -30,6 +31,39 @@ func getClientConnection() (*grpc.ClientConn, error) {
 	return conn, nil
 }
 
+func loadPodSandboxConfig(path string) (*pb.PodSandboxConfig, error) {
+	f, err := os.Open(path)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return nil, fmt.Errorf("pod sandbox config at %s not found", path)
+		}
+		return nil, err
+	}
+	defer f.Close()
+
+	var config pb.PodSandboxConfig
+	if err := json.NewDecoder(f).Decode(&config); err != nil {
+		return nil, err
+	}
+	return &config, nil
+}
+
+// CreatePodSandbox sends a CreatePodSandboxRequest to the server, and parses
+// the returned CreatePodSandboxResponse.
+func CreatePodSandbox(client pb.RuntimeServiceClient, path string) error {
+	config, err := loadPodSandboxConfig(path)
+	if err != nil {
+		return err
+	}
+
+	r, err := client.CreatePodSandbox(context.Background(), &pb.CreatePodSandboxRequest{Config: config})
+	if err != nil {
+		return err
+	}
+	fmt.Println(r)
+	return nil
+}
+
 // Version sends a VersionRequest to the server, and parses the returned VersionResponse.
 func Version(client pb.RuntimeServiceClient, version string) error {
 	r, err := client.Version(context.Background(), &pb.VersionRequest{Version: &version})
@@ -47,6 +81,7 @@ func main() {
 
 	app.Commands = []cli.Command{
 		runtimeVersionCommand,
+		createPodSandboxCommand,
 		pullImageCommand,
 	}
 
@@ -105,3 +140,31 @@ var runtimeVersionCommand = cli.Command{
 		return nil
 	},
 }
+
+var createPodSandboxCommand = cli.Command{
+	Name:  "createpodsandbox",
+	Usage: "create a pod sandbox",
+	Flags: []cli.Flag{
+		cli.StringFlag{
+			Name:  "config",
+			Value: "config.json",
+			Usage: "the path of a pod sandbox config file",
+		},
+	},
+	Action: func(context *cli.Context) error {
+		// Set up a connection to the server.
+		conn, err := getClientConnection()
+		if err != nil {
+			return fmt.Errorf("Failed to connect: %v", err)
+		}
+		defer conn.Close()
+		client := pb.NewRuntimeServiceClient(conn)
+
+		// Test RuntimeServiceClient.CreatePodSandbox
+		err = CreatePodSandbox(client, context.String("config"))
+		if err != nil {
+			return fmt.Errorf("Creating the pod sandbox failed: %v", err)
+		}
+		return nil
+	},
+}

cmd/client/podsandboxconfig.json

@@ -0,0 +1,54 @@
+{
+	"name": "podsandbox1",
+	"hostname": "ocic_host",
+	"log_directory": ".",
+	"dns_options": {
+		"servers": [
+			"server1.redhat.com",
+			"server2.redhat.com"
+		],
+		"searches": [
+			"8.8.8.8"
+		]
+	},
+	"port_mappings": [
+		{
+			"name": "port_map1",
+			"protocol": 1,
+			"container_port": 80,
+			"host_port": 4888,
+			"host_ip": "192.168.0.33"
+		},
+		{
+			"name": "port_map2",
+			"protocol": 2,
+			"container_port": 81,
+			"host_port": 4889,
+			"host_ip": "192.168.0.33"
+		}
+	],
+	"resources": {
+		"cpu": {
+			"limits": 50000000,
+			"requests": 20000000
+		},
+		"memory": {
+			"limits": 500000000000,
+			"requests": 200000000000
+		}
+	},
+	"lables": {
+		"group": "test"
+	},
+	"annotations": {
+		"owner": "hmeng"
+	},
+	"linux": {
+		"cgroup_parent": "/sys/fs/cgroup/test",
+		"namespace_options": {
+			"host_network": true,
+			"host_pid": true,
+			"host_ipc": true
+		}
+	}
+}