/
cfg.go
143 lines (118 loc) · 3.17 KB
/
cfg.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
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
130
131
132
133
134
135
136
137
138
139
140
141
142
143
// Copyright 2017 Xiaomi, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package g
import (
"encoding/json"
"log"
"os"
"sync"
"github.com/toolkits/file"
)
type PluginConfig struct {
Enabled bool `json:"enabled"`
Dir string `json:"dir"`
Git string `json:"git"`
LogDir string `json:"logs"`
}
type HeartbeatConfig struct {
Enabled bool `json:"enabled"`
Addr string `json:"addr"`
Interval int `json:"interval"`
Timeout int `json:"timeout"`
}
type TransferConfig struct {
Enabled bool `json:"enabled"`
Addrs []string `json:"addrs"`
Interval int `json:"interval"`
Timeout int `json:"timeout"`
}
type HttpConfig struct {
Enabled bool `json:"enabled"`
Listen string `json:"listen"`
Backdoor bool `json:"backdoor"`
}
type CollectorConfig struct {
IfacePrefix []string `json:"ifacePrefix"`
MountPoint []string `json:"mountPoint"`
}
type GlobalConfig struct {
Debug bool `json:"debug"`
Hostname string `json:"hostname"`
IP string `json:"ip"`
Plugin *PluginConfig `json:"plugin"`
Heartbeat *HeartbeatConfig `json:"heartbeat"`
Transfer *TransferConfig `json:"transfer"`
Http *HttpConfig `json:"http"`
Collector *CollectorConfig `json:"collector"`
DefaultTags map[string]string `json:"default_tags"`
IgnoreMetrics map[string]bool `json:"ignore"`
}
var (
ConfigFile string
config *GlobalConfig
lock = new(sync.RWMutex)
)
func Config() *GlobalConfig {
lock.RLock()
defer lock.RUnlock()
return config
}
func Hostname() (string, error) {
hostname := Config().Hostname
if hostname != "" {
return hostname, nil
}
if os.Getenv("FALCON_ENDPOINT") != "" {
hostname = os.Getenv("FALCON_ENDPOINT")
return hostname, nil
}
hostname, err := os.Hostname()
if err != nil {
log.Println("ERROR: os.Hostname() fail", err)
}
return hostname, err
}
func IP() string {
ip := Config().IP
if ip != "" {
// use ip in configuration
return ip
}
if len(LocalIp) > 0 {
ip = LocalIp
}
return ip
}
func ParseConfig(cfg string) {
if cfg == "" {
log.Fatalln("use -c to specify configuration file")
}
if !file.IsExist(cfg) {
log.Fatalln("config file:", cfg, "is not existent. maybe you need `mv cfg.example.json cfg.json`")
}
ConfigFile = cfg
configContent, err := file.ToTrimString(cfg)
if err != nil {
log.Fatalln("read config file:", cfg, "fail:", err)
}
var c GlobalConfig
err = json.Unmarshal([]byte(configContent), &c)
if err != nil {
log.Fatalln("parse config file:", cfg, "fail:", err)
}
lock.Lock()
defer lock.Unlock()
config = &c
log.Println("read config file:", cfg, "successfully")
}