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
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
// SPDX-License-Identifier: GPL-3.0-or-later
package nvme
import (
"context"
"errors"
"fmt"
"os"
"os/exec"
"path/filepath"
)
func (n *NVMe) validateConfig() error {
if n.BinaryPath == "" {
return errors.New("'binary_path' can not be empty")
}
return nil
}
func (n *NVMe) initNVMeCLIExec() (nvmeCLI, error) {
if exePath, err := os.Executable(); err == nil {
ndsudoPath := filepath.Join(filepath.Dir(exePath), "ndsudo")
if fi, err := os.Stat(ndsudoPath); err == nil {
// executable by owner or group
if fi.Mode().Perm()&0110 != 0 {
n.Debug("using ndsudo")
return &nvmeCLIExec{
ndsudoPath: ndsudoPath,
timeout: n.Timeout.Duration(),
}, nil
}
}
}
// TODO: remove after next minor release of Netdata (latest is v1.44.0)
// can't remove now because it will break "from source + stable channel" installations
nvmePath, err := exec.LookPath(n.BinaryPath)
if err != nil {
return nil, err
}
var sudoPath string
if os.Getuid() != 0 {
sudoPath, err = exec.LookPath("sudo")
if err != nil {
return nil, err
}
}
if sudoPath != "" {
ctx1, cancel1 := context.WithTimeout(context.Background(), n.Timeout.Duration())
defer cancel1()
if _, err := exec.CommandContext(ctx1, sudoPath, "-n", "-v").Output(); err != nil {
return nil, fmt.Errorf("can not run sudo on this host: %v", err)
}
ctx2, cancel2 := context.WithTimeout(context.Background(), n.Timeout.Duration())
defer cancel2()
if _, err := exec.CommandContext(ctx2, sudoPath, "-n", "-l", nvmePath).Output(); err != nil {
return nil, fmt.Errorf("can not run '%s' with sudo: %v", n.BinaryPath, err)
}
}
return &nvmeCLIExec{
sudoPath: sudoPath,
nvmePath: nvmePath,
timeout: n.Timeout.Duration(),
}, nil
}
|
