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
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
// SPDX-License-Identifier: GPL-3.0-or-later
//go:build linux
// +build linux
package systemdunits
import (
"context"
"fmt"
"strings"
"time"
"github.com/coreos/go-systemd/v22/dbus"
)
// https://github.com/systemd/systemd/blob/3d320785c4bbba74459096b07e85a79c4f0cdffb/src/shared/install.c#L3785
// see "is-enabled" in https://www.man7.org/linux/man-pages/man1/systemctl.1.html
var unitFileStates = []string{
"enabled",
"enabled-runtime",
"linked",
"linked-runtime",
"alias",
"masked",
"masked-runtime",
"static",
"disabled",
"indirect",
"generated",
"transient",
"bad",
}
func (s *SystemdUnits) collectUnitFiles(mx map[string]int64, conn systemdConnection) error {
if s.systemdVersion < 230 {
return nil
}
if now := time.Now(); now.After(s.lastListUnitFilesTime.Add(s.CollectUnitFilesEvery.Duration())) {
unitFiles, err := s.getUnitFilesByPatterns(conn)
if err != nil {
return err
}
s.lastListUnitFilesTime = now
s.cachedUnitFiles = unitFiles
}
seen := make(map[string]bool)
for _, unitFile := range s.cachedUnitFiles {
seen[unitFile.Path] = true
if !s.seenUnitFiles[unitFile.Path] {
s.seenUnitFiles[unitFile.Path] = true
s.addUnitFileCharts(unitFile.Path)
}
px := fmt.Sprintf("unit_file_%s_state_", unitFile.Path)
for _, st := range unitFileStates {
mx[px+st] = 0
}
mx[px+strings.ToLower(unitFile.Type)] = 1
}
for k := range s.seenUnitFiles {
if !seen[k] {
delete(s.seenUnitFiles, k)
s.removeUnitFileCharts(k)
}
}
return nil
}
func (s *SystemdUnits) getUnitFilesByPatterns(conn systemdConnection) ([]dbus.UnitFile, error) {
ctx, cancel := context.WithTimeout(context.Background(), s.Timeout.Duration())
defer cancel()
s.Debugf("calling function 'ListUnitFilesByPatterns'")
unitFiles, err := conn.ListUnitFilesByPatternsContext(ctx, nil, s.IncludeUnitFiles)
if err != nil {
return nil, fmt.Errorf("error on ListUnitFilesByPatterns: %v", err)
}
for i := range unitFiles {
unitFiles[i].Path = cleanUnitName(unitFiles[i].Path)
}
s.Debugf("got %d unit files", len(unitFiles))
return unitFiles, nil
}
|
