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
121
122
123
124
125
126
127
128
129
|
// SPDX-License-Identifier: GPL-3.0-or-later
package pihole
import (
_ "embed"
"errors"
"net/http"
"sync"
"time"
"github.com/netdata/netdata/go/go.d.plugin/agent/module"
"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
)
//go:embed "config_schema.json"
var configSchema string
func init() {
module.Register("pihole", module.Creator{
JobConfigSchema: configSchema,
Defaults: module.Defaults{
UpdateEvery: 5,
},
Create: func() module.Module { return New() },
Config: func() any { return &Config{} },
})
}
func New() *Pihole {
return &Pihole{
Config: Config{
HTTP: web.HTTP{
Request: web.Request{
URL: "http://127.0.0.1",
},
Client: web.Client{
Timeout: web.Duration(time.Second * 5),
},
},
SetupVarsPath: "/etc/pihole/setupVars.conf",
},
checkVersion: true,
charts: baseCharts.Copy(),
addQueriesTypesOnce: &sync.Once{},
addFwsDestinationsOnce: &sync.Once{},
}
}
type Config struct {
UpdateEvery int `yaml:"update_every,omitempty" json:"update_every"`
web.HTTP `yaml:",inline" json:""`
SetupVarsPath string `yaml:"setup_vars_path" json:"setup_vars_path"`
}
type Pihole struct {
module.Base
Config `yaml:",inline" json:""`
charts *module.Charts
addQueriesTypesOnce *sync.Once
addFwsDestinationsOnce *sync.Once
httpClient *http.Client
checkVersion bool
}
func (p *Pihole) Configuration() any {
return p.Config
}
func (p *Pihole) Init() error {
if err := p.validateConfig(); err != nil {
p.Errorf("config validation: %v", err)
return err
}
httpClient, err := p.initHTTPClient()
if err != nil {
p.Errorf("init http client: %v", err)
return err
}
p.httpClient = httpClient
p.Password = p.getWebPassword()
if p.Password == "" {
p.Warning("no web password, not all metrics available")
} else {
p.Debugf("web password: %s", p.Password)
}
return nil
}
func (p *Pihole) Check() error {
mx, err := p.collect()
if err != nil {
p.Error(err)
return err
}
if len(mx) == 0 {
return errors.New("no metrics collected")
}
return nil
}
func (p *Pihole) Charts() *module.Charts {
return p.charts
}
func (p *Pihole) Collect() map[string]int64 {
mx, err := p.collect()
if err != nil {
p.Error(err)
}
if len(mx) == 0 {
return nil
}
return mx
}
func (p *Pihole) Cleanup() {
if p.httpClient != nil {
p.httpClient.CloseIdleConnections()
}
}
|