forked from minio/minio
/
callhome.go
150 lines (129 loc) · 4.15 KB
/
callhome.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
144
145
146
147
148
149
150
// Copyright (c) 2015-2022 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"context"
"fmt"
"math/rand"
"time"
"github.com/minio/madmin-go"
"github.com/minio/minio/internal/logger"
uatomic "go.uber.org/atomic"
)
const (
// callhomeSchemaVersion1 is callhome schema version 1
callhomeSchemaVersion1 = "1"
// callhomeSchemaVersion is current callhome schema version.
callhomeSchemaVersion = callhomeSchemaVersion1
// callhomeCycleDefault is the default interval between two callhome cycles (24hrs)
callhomeCycleDefault = 24 * time.Hour
)
// CallhomeInfo - Contains callhome information
type CallhomeInfo struct {
SchemaVersion string `json:"schema_version"`
AdminInfo madmin.InfoMessage `json:"admin_info"`
}
var (
enableCallhome = uatomic.NewBool(false)
callhomeLeaderLockTimeout = newDynamicTimeout(30*time.Second, 10*time.Second)
callhomeFreq = uatomic.NewDuration(callhomeCycleDefault)
)
func updateCallhomeParams(ctx context.Context, objAPI ObjectLayer) {
alreadyEnabled := enableCallhome.Load()
enableCallhome.Store(globalCallhomeConfig.Enable)
callhomeFreq.Store(globalCallhomeConfig.Frequency)
// If callhome was disabled earlier and has now been enabled,
// initialize the callhome process again.
if !alreadyEnabled && enableCallhome.Load() {
initCallhome(ctx, objAPI)
}
}
// initCallhome will start the callhome task in the background.
func initCallhome(ctx context.Context, objAPI ObjectLayer) {
go func() {
r := rand.New(rand.NewSource(time.Now().UnixNano()))
// Leader node (that successfully acquires the lock inside runCallhome)
// will keep performing the callhome. If the leader goes down for some reason,
// the lock will be released and another node will acquire it and take over
// because of this loop.
for {
runCallhome(ctx, objAPI)
if !enableCallhome.Load() {
return
}
// callhome running on a different node.
// sleep for some time and try again.
duration := time.Duration(r.Float64() * float64(callhomeFreq.Load()))
if duration < time.Second {
// Make sure to sleep atleast a second to avoid high CPU ticks.
duration = time.Second
}
time.Sleep(duration)
if !enableCallhome.Load() {
return
}
}
}()
}
func runCallhome(ctx context.Context, objAPI ObjectLayer) {
// Make sure only 1 callhome is running on the cluster.
locker := objAPI.NewNSLock(minioMetaBucket, "callhome/runCallhome.lock")
lkctx, err := locker.GetLock(ctx, callhomeLeaderLockTimeout)
if err != nil {
return
}
ctx = lkctx.Context()
defer locker.Unlock(lkctx.Cancel)
callhomeTimer := time.NewTimer(callhomeFreq.Load())
defer callhomeTimer.Stop()
for {
select {
case <-ctx.Done():
return
case <-callhomeTimer.C:
if !enableCallhome.Load() {
// Stop the processing as callhome got disabled
return
}
performCallhome(ctx)
// Reset the timer for next cycle.
callhomeTimer.Reset(callhomeFreq.Load())
}
}
}
func performCallhome(ctx context.Context) {
err := sendCallhomeInfo(
CallhomeInfo{
SchemaVersion: callhomeSchemaVersion,
AdminInfo: getServerInfo(ctx, nil),
})
if err != nil {
logger.LogIf(ctx, fmt.Errorf("Unable to perform callhome: %w", err))
}
}
const (
callhomeURL = "https://subnet.min.io/api/callhome"
callhomeURLDev = "http://localhost:9000/api/callhome"
)
func sendCallhomeInfo(ch CallhomeInfo) error {
url := callhomeURL
if globalIsCICD {
url = callhomeURLDev
}
_, err := globalSubnetConfig.Post(url, ch)
return err
}