[#307] cmd/cli: Implement private command for private API access

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

cmd/neofs-cli/modules/private.go

@@ -0,0 +1,81 @@
+package cmd
+
+import (
+	"context"
+
+	"github.com/nspcc-dev/neofs-api-go/util/signature"
+	"github.com/nspcc-dev/neofs-api-go/v2/client"
+	"github.com/nspcc-dev/neofs-node/pkg/services/private"
+	privateSvc "github.com/nspcc-dev/neofs-node/pkg/services/private/server"
+	"github.com/spf13/cobra"
+)
+
+var privateCmd = &cobra.Command{
+	Use:   "private",
+	Short: "Operations with storage node",
+	Long:  `Operations with storage node`,
+}
+
+var healthCheckCmd = &cobra.Command{
+	Use:   "healthcheck",
+	Short: "Health check of the storage node",
+	Long:  "Health check of the storage node",
+	RunE:  healthCheck,
+}
+
+func init() {
+	rootCmd.AddCommand(privateCmd)
+
+	privateCmd.AddCommand(healthCheckCmd)
+}
+
+func healthCheck(cmd *cobra.Command, _ []string) error {
+	key, err := getKey()
+	if err != nil {
+		return err
+	}
+
+	req := new(private.HealthCheckRequest)
+
+	req.SetBody(new(private.HealthCheckRequest_Body))
+
+	if err := privateSvc.SignMessage(key, req); err != nil {
+		return err
+	}
+
+	netAddr, err := getEndpointAddress()
+	if err != nil {
+		return err
+	}
+
+	ipAddr, err := netAddr.IPAddrString()
+	if err != nil {
+		return errInvalidEndpoint
+	}
+
+	con, err := client.NewGRPCClientConn(
+		client.WithNetworkAddress(ipAddr),
+	)
+	if err != nil {
+		return err
+	}
+
+	cli := private.NewPrivateServiceClient(con)
+
+	resp, err := cli.HealthCheck(context.Background(), req)
+	if err != nil {
+		return err
+	}
+
+	sign := resp.GetSignature()
+
+	if err := signature.VerifyDataWithSource(resp, func() ([]byte, []byte) {
+		return sign.GetKey(), sign.GetSign()
+	}); err != nil {
+		return err
+	}
+
+	cmd.Printf("Node status: %s\n", resp.GetBody().GetStatus())
+
+	return nil
+}