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refactor: refactor print GRPC message (#386)

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This commit is contained in:
naison
2024-12-06 19:29:11 +08:00
committed by GitHub
parent d9a978d330
commit 81f62eab31
19 changed files with 168 additions and 306 deletions
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14
cmd/kubevpn/cmds/clone.go
View File

@@ -2,14 +2,11 @@ package cmds
import (
"fmt"
"io"
"os"
pkgerr "github.com/pkg/errors"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
cmdutil "k8s.io/kubectl/pkg/cmd/util"
utilcomp "k8s.io/kubectl/pkg/util/completion"
"k8s.io/kubectl/pkg/util/i18n"
@@ -141,17 +138,10 @@ func CmdClone(f cmdutil.Factory) *cobra.Command {
if err != nil {
return err
}
for {
recv, err := resp.Recv()
if err == io.EOF {
break
} else if code := status.Code(err); code == codes.DeadlineExceeded || code == codes.Canceled {
return nil
} else if err != nil {
err = util.PrintGRPCStream[rpc.CloneResponse](resp)
if err != nil {
return err
}
_, _ = fmt.Fprint(os.Stdout, recv.GetMessage())
}
util.Print(os.Stdout, config.Slogan)
return nil
},

46
cmd/kubevpn/cmds/connect.go
View File

@@ -3,13 +3,11 @@ package cmds
import (
"context"
"fmt"
"io"
"os"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"google.golang.org/grpc"
cmdutil "k8s.io/kubectl/pkg/cmd/util"
"k8s.io/kubectl/pkg/util/i18n"
"k8s.io/kubectl/pkg/util/templates"
@@ -98,39 +96,19 @@ func CmdConnect(f cmdutil.Factory) *cobra.Command {
}
// if is foreground, send to sudo daemon server
cli := daemon.GetClient(false)
var resp grpc.ClientStream
if lite {
resp, err := cli.ConnectFork(cmd.Context(), req)
if err != nil {
return err
}
for {
recv, err := resp.Recv()
if err == io.EOF {
break
} else if code := status.Code(err); code == codes.DeadlineExceeded || code == codes.Canceled {
return nil
} else if err != nil {
return err
}
_, _ = fmt.Fprint(os.Stdout, recv.GetMessage())
}
resp, err = cli.ConnectFork(cmd.Context(), req)
} else {
resp, err := cli.Connect(cmd.Context(), req)
resp, err = cli.Connect(cmd.Context(), req)
}
if err != nil {
return err
}
for {
recv, err := resp.Recv()
if err == io.EOF {
break
} else if code := status.Code(err); code == codes.DeadlineExceeded || code == codes.Canceled {
return nil
} else if err != nil {
err = util.PrintGRPCStream[rpc.ConnectResponse](resp)
if err != nil {
return err
}
_, _ = fmt.Fprint(os.Stdout, recv.GetMessage())
}
}
if !foreground {
util.Print(os.Stdout, config.Slogan)
} else {
@@ -144,16 +122,10 @@ func CmdConnect(f cmdutil.Factory) *cobra.Command {
log.Errorf("Disconnect error: %v", err)
return err
}
for {
recv, err := disconnect.Recv()
if err == io.EOF {
break
} else if err != nil {
log.Errorf("Receive disconnect message error: %v", err)
err = util.PrintGRPCStream[rpc.DisconnectResponse](disconnect)
if err != nil {
return err
}
_, _ = fmt.Fprint(os.Stdout, recv.Message)
}
_, _ = fmt.Fprint(os.Stdout, "Disconnect completed")
}
return nil

17
cmd/kubevpn/cmds/disconnect.go
View File

@@ -2,13 +2,10 @@ package cmds
import (
"fmt"
"io"
"os"
"strconv"
"github.com/spf13/cobra"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
cmdutil "k8s.io/kubectl/pkg/cmd/util"
"k8s.io/kubectl/pkg/util/i18n"
"k8s.io/kubectl/pkg/util/templates"
@@ -69,18 +66,12 @@ func CmdDisconnect(f cmdutil.Factory) *cobra.Command {
All: pointer.Bool(all),
},
)
var resp *rpc.DisconnectResponse
for {
resp, err = client.Recv()
if err == io.EOF {
break
} else if err == nil {
_, _ = fmt.Fprint(os.Stdout, resp.Message)
} else if code := status.Code(err); code == codes.DeadlineExceeded || code == codes.Canceled {
break
} else {
if err != nil {
return err
}
err = util.PrintGRPCStream[rpc.DisconnectResponse](client)
if err != nil {
return err
}
_, _ = fmt.Fprint(os.Stdout, "Disconnect completed")
return nil

18
cmd/kubevpn/cmds/leave.go
View File

@@ -1,19 +1,14 @@
package cmds
import (
"fmt"
"io"
"os"
"github.com/spf13/cobra"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
cmdutil "k8s.io/kubectl/pkg/cmd/util"
"k8s.io/kubectl/pkg/util/i18n"
"k8s.io/kubectl/pkg/util/templates"
"github.com/wencaiwulue/kubevpn/v2/pkg/daemon"
"github.com/wencaiwulue/kubevpn/v2/pkg/daemon/rpc"
"github.com/wencaiwulue/kubevpn/v2/pkg/util"
)
func CmdLeave(f cmdutil.Factory) *cobra.Command {
@@ -43,17 +38,8 @@ func CmdLeave(f cmdutil.Factory) *cobra.Command {
if err != nil {
return err
}
for {
recv, err := leave.Recv()
if err == io.EOF {
return nil
} else if code := status.Code(err); code == codes.DeadlineExceeded || code == codes.Canceled {
return nil
} else if err != nil {
err = util.PrintGRPCStream[rpc.LeaveResponse](leave)
return err
}
_, _ = fmt.Fprint(os.Stdout, recv.GetMessage())
}
},
}
return leaveCmd

20
cmd/kubevpn/cmds/logs.go
View File

@@ -1,13 +1,7 @@
package cmds
import (
"fmt"
"io"
"os"
"github.com/spf13/cobra"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
cmdutil "k8s.io/kubectl/pkg/cmd/util"
"k8s.io/kubectl/pkg/util/i18n"
"k8s.io/kubectl/pkg/util/templates"
@@ -41,20 +35,8 @@ func CmdLogs(f cmdutil.Factory) *cobra.Command {
if err != nil {
return err
}
var resp *rpc.LogResponse
for {
resp, err = client.Recv()
if err == io.EOF {
break
} else if err == nil {
fmt.Fprintln(os.Stdout, resp.Message)
} else if code := status.Code(err); code == codes.DeadlineExceeded || code == codes.Canceled {
return nil
} else {
err = util.PrintGRPCStream[rpc.LogResponse](client)
return err
}
}
return nil
},
}
cmd.Flags().BoolVarP(&req.Follow, "follow", "f", false, "Specify if the logs should be streamed.")

29
cmd/kubevpn/cmds/proxy.go
View File

@@ -3,13 +3,10 @@ package cmds
import (
"context"
"fmt"
"io"
"os"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
cmdutil "k8s.io/kubectl/pkg/cmd/util"
utilcomp "k8s.io/kubectl/pkg/util/completion"
"k8s.io/kubectl/pkg/util/i18n"
@@ -139,19 +136,10 @@ func CmdProxy(f cmdutil.Factory) *cobra.Command {
if err != nil {
return err
}
var resp *rpc.ConnectResponse
for {
resp, err = client.Recv()
if err == io.EOF {
break
} else if err == nil {
_, _ = fmt.Fprint(os.Stdout, resp.Message)
} else if code := status.Code(err); code == codes.DeadlineExceeded || code == codes.Canceled {
return nil
} else {
err = util.PrintGRPCStream[rpc.ConnectResponse](client)
if err != nil {
return err
}
}
util.Print(os.Stdout, config.Slogan)
// hangup
if foreground {
@@ -161,17 +149,12 @@ func CmdProxy(f cmdutil.Factory) *cobra.Command {
stream, err := cli.Leave(context.Background(), &rpc.LeaveRequest{
Workloads: args,
})
var resp *rpc.LeaveResponse
for {
resp, err = stream.Recv()
if err == io.EOF {
return nil
} else if code := status.Code(err); code == codes.DeadlineExceeded || code == codes.Canceled {
return nil
} else if err != nil {
if err != nil {
return err
}
_, _ = fmt.Fprint(os.Stdout, resp.Message)
err = util.PrintGRPCStream[rpc.LeaveResponse](stream)
if err != nil {
return err
}
}
return nil

16
cmd/kubevpn/cmds/quit.go
View File

@@ -3,12 +3,9 @@ package cmds
import (
"context"
"fmt"
"io"
"os"
"github.com/spf13/cobra"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
cmdutil "k8s.io/kubectl/pkg/cmd/util"
"k8s.io/kubectl/pkg/util/i18n"
"k8s.io/kubectl/pkg/util/templates"
@@ -49,18 +46,9 @@ func quit(ctx context.Context, isSudo bool) error {
if err != nil {
return err
}
var resp *rpc.QuitResponse
for {
resp, err = client.Recv()
if err == io.EOF {
break
} else if err == nil {
_, _ = fmt.Fprint(os.Stdout, resp.Message)
} else if code := status.Code(err); code == codes.DeadlineExceeded || code == codes.Canceled {
return nil
} else {
err = util.PrintGRPCStream[rpc.QuitResponse](client)
if err != nil {
return err
}
}
return nil
}

18
cmd/kubevpn/cmds/remove.go
View File

@@ -1,19 +1,14 @@
package cmds
import (
"fmt"
"io"
"os"
"github.com/spf13/cobra"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
cmdutil "k8s.io/kubectl/pkg/cmd/util"
"k8s.io/kubectl/pkg/util/i18n"
"k8s.io/kubectl/pkg/util/templates"
"github.com/wencaiwulue/kubevpn/v2/pkg/daemon"
"github.com/wencaiwulue/kubevpn/v2/pkg/daemon/rpc"
"github.com/wencaiwulue/kubevpn/v2/pkg/util"
)
func CmdRemove(f cmdutil.Factory) *cobra.Command {
@@ -41,17 +36,8 @@ func CmdRemove(f cmdutil.Factory) *cobra.Command {
if err != nil {
return err
}
for {
recv, err := leave.Recv()
if err == io.EOF {
return nil
} else if code := status.Code(err); code == codes.DeadlineExceeded || code == codes.Canceled {
return nil
} else if err != nil {
err = util.PrintGRPCStream[rpc.RemoveResponse](leave)
return err
}
_, _ = fmt.Fprint(os.Stdout, recv.GetMessage())
}
},
}
return cmd

38
cmd/kubevpn/cmds/reset.go
View File

@@ -1,14 +1,8 @@
package cmds
import (
"fmt"
"io"
"os"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
cmdutil "k8s.io/kubectl/pkg/cmd/util"
"k8s.io/kubectl/pkg/util/i18n"
"k8s.io/kubectl/pkg/util/templates"
@@ -71,7 +65,7 @@ func CmdReset(f cmdutil.Factory) *cobra.Command {
if err != nil {
log.Warnf("Failed to disconnect from cluter: %v", err)
} else {
_ = printDisconnectResp(disconnect)
_ = util.PrintGRPCStream[rpc.DisconnectResponse](disconnect)
}
req := &rpc.ResetRequest{
@@ -83,7 +77,7 @@ func CmdReset(f cmdutil.Factory) *cobra.Command {
if err != nil {
return err
}
err = printResetResp(resp)
err = util.PrintGRPCStream[rpc.ResetResponse](resp)
return err
},
}
@@ -91,31 +85,3 @@ func CmdReset(f cmdutil.Factory) *cobra.Command {
pkgssh.AddSshFlags(cmd.Flags(), sshConf)
return cmd
}
func printResetResp(resp rpc.Daemon_ResetClient) error {
for {
recv, err := resp.Recv()
if err == io.EOF {
return nil
} else if code := status.Code(err); code == codes.DeadlineExceeded || code == codes.Canceled {
return nil
} else if err != nil {
return err
}
_, _ = fmt.Fprintf(os.Stdout, recv.GetMessage())
}
}
func printDisconnectResp(disconnect rpc.Daemon_DisconnectClient) error {
for {
recv, err := disconnect.Recv()
if err == io.EOF {
return nil
} else if code := status.Code(err); code == codes.DeadlineExceeded || code == codes.Canceled {
return nil
} else if err != nil {
return err
}
_, _ = fmt.Fprintf(os.Stdout, recv.GetMessage())
}
}

18
pkg/daemon/action/clone.go
View File

@@ -2,13 +2,10 @@ package action
import (
"context"
"fmt"
"io"
log "github.com/sirupsen/logrus"
"github.com/spf13/pflag"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"github.com/wencaiwulue/kubevpn/v2/pkg/config"
"github.com/wencaiwulue/kubevpn/v2/pkg/daemon/rpc"
@@ -44,21 +41,10 @@ func (svr *Server) Clone(req *rpc.CloneRequest, resp rpc.Daemon_CloneServer) (er
if err != nil {
return err
}
var msg *rpc.ConnectResponse
for {
msg, err = connResp.Recv()
if err == io.EOF {
break
} else if err == nil {
fmt.Fprint(out, msg.Message)
} else if code := status.Code(err); code == codes.DeadlineExceeded || code == codes.Canceled {
return nil
} else if code := status.Code(err); code == codes.AlreadyExists {
return fmt.Errorf("connect with cluster already established, disconnect required before proceeding")
} else {
err = util.PrintGRPCStream[rpc.ConnectResponse](connResp, out)
if err != nil {
return err
}
}
util.InitLoggerForClient(config.Debug)
log.SetOutput(out)

10
pkg/daemon/action/connect-fork.go
View File

@@ -173,18 +173,10 @@ func (svr *Server) redirectConnectForkToSudoDaemon(req *rpc.ConnectRequest, resp
if err != nil {
return err
}
for {
recv, err := connResp.Recv()
if err == io.EOF {
break
} else if err != nil {
return err
}
err = resp.Send(recv)
err = util.CopyGRPCStream[rpc.ConnectResponse](connResp, resp)
if err != nil {
return err
}
}
if resp.Context().Err() != nil {
return resp.Context().Err()

10
pkg/daemon/action/connect.go
View File

@@ -190,18 +190,10 @@ func (svr *Server) redirectToSudoDaemon(req *rpc.ConnectRequest, resp rpc.Daemon
if err != nil {
return err
}
for {
recv, err := connResp.Recv()
if err == io.EOF {
break
} else if err != nil {
return err
}
err = resp.Send(recv)
err = util.CopyGRPCStream[rpc.ConnectResponse](connResp, resp)
if err != nil {
return err
}
}
if resp.Context().Err() != nil {
return resp.Context().Err()

11
pkg/daemon/action/disconnect.go
View File

@@ -118,20 +118,11 @@ func (svr *Server) Disconnect(req *rpc.DisconnectRequest, resp rpc.Daemon_Discon
if err != nil {
return err
}
var recv *rpc.DisconnectResponse
for {
recv, err = connResp.Recv()
if err == io.EOF {
break
} else if err != nil {
return err
}
err = resp.Send(recv)
err = util.CopyGRPCStream[rpc.DisconnectResponse](connResp, resp)
if err != nil {
return err
}
}
}
return nil
}

2
pkg/daemon/action/logs.go
View File

@@ -52,7 +52,7 @@ func (svr *Server) Logs(req *rpc.LogRequest, resp rpc.Daemon_LogsServer) error {
continue
}
err = resp.Send(&rpc.LogResponse{Message: line.Text})
err = resp.Send(&rpc.LogResponse{Message: line.Text + "\n"})
if err != nil {
return err
}

29
pkg/daemon/action/proxy.go
View File

@@ -99,20 +99,16 @@ func (svr *Server) Proxy(req *rpc.ConnectRequest, resp rpc.Daemon_ProxyServer) (
if err != nil {
return err
}
var recv *rpc.DisconnectResponse
for {
recv, err = disconnectResp.Recv()
if err == io.EOF {
break
} else if err != nil {
log.Errorf("Receive from disconnect failed: %v", err)
return err
}
err = resp.Send(&rpc.ConnectResponse{Message: recv.Message})
err = util.CopyAndConvertGRPCStream[rpc.DisconnectResponse, rpc.ConnectResponse](
disconnectResp,
resp,
func(response *rpc.DisconnectResponse) *rpc.ConnectResponse {
return &rpc.ConnectResponse{Message: response.Message}
},
)
if err != nil {
return err
}
}
util.InitLoggerForClient(config.Debug)
log.SetOutput(out)
}
@@ -125,19 +121,10 @@ func (svr *Server) Proxy(req *rpc.ConnectRequest, resp rpc.Daemon_ProxyServer) (
if err != nil {
return err
}
var recv *rpc.ConnectResponse
for {
recv, err = connResp.Recv()
if err == io.EOF {
break
} else if err != nil {
return err
}
err = resp.Send(recv)
err = util.CopyGRPCStream[rpc.ConnectResponse](connResp, resp)
if err != nil {
return err
}
}
util.InitLoggerForClient(config.Debug)
log.SetOutput(out)
}

8
pkg/daemon/client.go
View File

@@ -18,6 +18,7 @@ import (
"github.com/wencaiwulue/kubevpn/v2/pkg/config"
"github.com/wencaiwulue/kubevpn/v2/pkg/daemon/elevate"
"github.com/wencaiwulue/kubevpn/v2/pkg/daemon/rpc"
"github.com/wencaiwulue/kubevpn/v2/pkg/util"
)
var daemonClient, sudoDaemonClient rpc.DaemonClient
@@ -67,11 +68,8 @@ func GetClient(isSudo bool) (cli rpc.DaemonClient) {
if err != nil {
return nil
}
for {
if _, err = quitStream.Recv(); err != nil {
return nil
}
}
err = util.PrintGRPCStream[rpc.QuitResponse](quitStream, nil)
return
}
if isSudo {

25
pkg/dev/options.go
View File

@@ -4,7 +4,6 @@ import (
"context"
"errors"
"fmt"
"io"
"os"
"strconv"
"strings"
@@ -158,11 +157,15 @@ func (option *Options) Connect(ctx context.Context, sshConfig *pkgssh.SshConfig,
req.Workloads = nil
}
option.AddRollbackFunc(func() error {
_ = disconnect(ctx, daemonCli, &rpc.DisconnectRequest{
resp, err := daemonCli.Disconnect(ctx, &rpc.DisconnectRequest{
KubeconfigBytes: ptr.To(string(kubeConfigBytes)),
Namespace: ptr.To(ns),
SshJump: sshConfig.ToRPC(),
})
if err != nil {
return err
}
_ = util.PrintGRPCStream[rpc.DisconnectResponse](resp)
return nil
})
var resp rpc.Daemon_ConnectClient
@@ -171,15 +174,8 @@ func (option *Options) Connect(ctx context.Context, sshConfig *pkgssh.SshConfig,
log.Errorf("Connect to cluster error: %s", err.Error())
return err
}
for {
resp, err := resp.Recv()
if err == io.EOF {
return nil
} else if err != nil {
err = util.PrintGRPCStream[rpc.CloneResponse](resp)
return err
}
_, _ = fmt.Fprint(os.Stdout, resp.Message)
}
case ConnectModeContainer:
runConfig, err := option.CreateConnectContainer(portBindings)
@@ -339,16 +335,9 @@ func disconnect(ctx context.Context, daemonClient rpc.DaemonClient, req *rpc.Dis
if err != nil {
return err
}
for {
recv, err := resp.Recv()
if err == io.EOF {
return nil
} else if err != nil {
err = util.PrintGRPCStream[rpc.DisconnectResponse](resp)
return err
}
_, _ = fmt.Fprint(os.Stdout, recv.Message)
}
}
func (option *Options) CreateConnectContainer(portBindings nat.PortMap) (*RunConfig, error) {
portMap, portSet, err := option.GetExposePort(portBindings)

6
pkg/dns/dns.go
View File

@@ -77,7 +77,7 @@ func (c *Config) watchServiceToAddHosts(ctx context.Context, serviceInterface v1
defer ticker.Stop()
immediate := make(chan struct{}, 1)
immediate <- struct{}{}
var ErrChanDone = errors.New("watch service chan done")
for ctx.Err() == nil {
err := func() error {
w, err := serviceInterface.Watch(ctx, v1.ListOptions{Watch: true})
@@ -91,7 +91,7 @@ func (c *Config) watchServiceToAddHosts(ctx context.Context, serviceInterface v1
return ctx.Err()
case event, ok := <-w.ResultChan():
if !ok {
return errors.New("watch service chan done")
return ErrChanDone
}
svc, ok := event.Object.(*v12.Service)
if !ok {
@@ -154,7 +154,7 @@ func (c *Config) watchServiceToAddHosts(ctx context.Context, serviceInterface v1
if ctx.Err() != nil {
return
}
if err != nil && !errors.Is(err, context.Canceled) {
if err != nil && !errors.Is(err, context.Canceled) && !errors.Is(err, ErrChanDone) {
log.Debugf("Failed to watch service to add route table: %v", err)
}
if utilnet.IsConnectionRefused(err) || apierrors.IsTooManyRequests(err) || apierrors.IsForbidden(err) {

83
pkg/util/grpc.go Normal file
View File

@@ -0,0 +1,83 @@
package util
import (
"encoding/json"
"errors"
"fmt"
"io"
"os"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
type Printable interface {
GetMessage() string
}
func PrintGRPCStream[T any](clientStream grpc.ClientStream, writers ...io.Writer) error {
var out io.Writer = os.Stdout
for _, writer := range writers {
out = writer
break
}
for {
var t = new(T)
err := clientStream.RecvMsg(t)
if errors.Is(err, io.EOF) {
return nil
}
if status.Code(err) == codes.Canceled {
return nil
}
if err != nil {
return err
}
if out == nil {
continue
}
if p, ok := any(t).(Printable); ok {
_, _ = fmt.Fprintf(out, p.GetMessage())
} else {
buf, _ := json.Marshal(t)
_, _ = fmt.Fprintf(out, string(buf))
}
}
}
func CopyGRPCStream[T any](r grpc.ClientStream, w grpc.ServerStream) error {
for {
var t = new(T)
err := r.RecvMsg(t)
if errors.Is(err, io.EOF) {
return nil
}
if err != nil {
return err
}
err = w.SendMsg(t)
if err != nil {
return err
}
}
}
func CopyAndConvertGRPCStream[I any, O any](r grpc.ClientStream, w grpc.ServerStream, convert func(*I) *O) error {
for {
var i = new(I)
err := r.RecvMsg(i)
if errors.Is(err, io.EOF) {
return nil
}
if err != nil {
return err
}
o := convert(i)
err = w.SendMsg(o)
if err != nil {
return err
}
}
}