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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
// SPDX-License-Identifier: GPL-3.0-or-later
//go:build linux
// +build linux
package systemdunits
import (
_ "embed"
"errors"
"time"
"github.com/netdata/netdata/go/go.d.plugin/agent/module"
"github.com/netdata/netdata/go/go.d.plugin/pkg/matcher"
"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
)
//go:embed "config_schema.json"
var configSchema string
func init() {
module.Register("systemdunits", module.Creator{
JobConfigSchema: configSchema,
Defaults: module.Defaults{
UpdateEvery: 10, // gathering systemd units can be a CPU intensive op
},
Create: func() module.Module { return New() },
})
}
func New() *SystemdUnits {
return &SystemdUnits{
Config: Config{
Timeout: web.Duration(time.Second * 2),
Include: []string{
"*.service",
},
},
charts: &module.Charts{},
client: newSystemdDBusClient(),
units: make(map[string]bool),
}
}
type Config struct {
UpdateEvery int `yaml:"update_every" json:"update_every"`
Timeout web.Duration `yaml:"timeout" json:"timeout"`
Include []string `yaml:"include" json:"include"`
}
type SystemdUnits struct {
module.Base
Config `yaml:",inline" json:""`
client systemdClient
conn systemdConnection
systemdVersion int
units map[string]bool
sr matcher.Matcher
charts *module.Charts
}
func (s *SystemdUnits) Configuration() any {
return s.Config
}
func (s *SystemdUnits) Init() error {
err := s.validateConfig()
if err != nil {
s.Errorf("config validation: %v", err)
return err
}
sr, err := s.initSelector()
if err != nil {
s.Errorf("init selector: %v", err)
return err
}
s.sr = sr
s.Debugf("unit names patterns: %v", s.Include)
s.Debugf("timeout: %s", s.Timeout)
return nil
}
func (s *SystemdUnits) Check() error {
mx, err := s.collect()
if err != nil {
s.Error(err)
return err
}
if len(mx) == 0 {
return errors.New("no metrics collected")
}
return nil
}
func (s *SystemdUnits) Charts() *module.Charts {
return s.charts
}
func (s *SystemdUnits) Collect() map[string]int64 {
mx, err := s.collect()
if err != nil {
s.Error(err)
}
if len(mx) == 0 {
return nil
}
return mx
}
func (s *SystemdUnits) Cleanup() {
s.closeConnection()
}
|
