-
Notifications
You must be signed in to change notification settings - Fork 0
/
grpc.go
53 lines (45 loc) · 1.42 KB
/
grpc.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
package services
import (
"context"
"fmt"
"net"
"os"
"strings"
"github.com/choffmeister/csi-driver-truenas/internal/utils"
grpc_middleware "github.com/grpc-ecosystem/go-grpc-middleware"
"google.golang.org/grpc"
)
func CreateCSIListener() (net.Listener, error) {
endpoint := os.Getenv("CSI_ENDPOINT")
if endpoint == "" {
return nil, fmt.Errorf("you need to specify an endpoint via the CSI_ENDPOINT env var")
}
if !strings.HasPrefix(endpoint, "unix://") {
return nil, fmt.Errorf("endpoint must start with unix://")
}
utils.Debug.Printf("Listening on %s\n", endpoint)
socketFile := strings.TrimPrefix(endpoint, "unix://")
if err := os.Remove(socketFile); err != nil && !os.IsNotExist(err) {
return nil, fmt.Errorf("failed to remove socket file at %s: %s", socketFile, err)
}
return net.Listen("unix", socketFile)
}
func CreateGRPCServer() *grpc.Server {
requestLogger := func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
isProbe := info.FullMethod == "/csi.v1.Identity/Probe"
resp, err := handler(ctx, req)
if err != nil {
utils.Error.Printf("Handling request %v %v failed: %v\n", info.FullMethod, req, err)
} else if !isProbe {
utils.Debug.Printf("Handled request %v %v", info.FullMethod, req)
}
return resp, err
}
return grpc.NewServer(
grpc.UnaryInterceptor(
grpc_middleware.ChainUnaryServer(
requestLogger,
),
),
)
}