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
|
// Copyright 2015 The Prometheus Authors
// 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.
// +build !noipvs
package collector
import (
"fmt"
"os"
"strconv"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/common/log"
"github.com/prometheus/procfs"
)
type ipvsCollector struct {
Collector
fs procfs.FS
backendConnectionsActive, backendConnectionsInact, backendWeight typedDesc
connections, incomingPackets, outgoingPackets, incomingBytes, outgoingBytes typedDesc
}
func init() {
registerCollector("ipvs", defaultEnabled, NewIPVSCollector)
}
// NewIPVSCollector sets up a new collector for IPVS metrics. It accepts the
// "procfs" config parameter to override the default proc location (/proc).
func NewIPVSCollector() (Collector, error) {
return newIPVSCollector()
}
func newIPVSCollector() (*ipvsCollector, error) {
var (
ipvsBackendLabelNames = []string{
"local_address",
"local_port",
"remote_address",
"remote_port",
"proto",
}
c ipvsCollector
err error
subsystem = "ipvs"
)
c.fs, err = procfs.NewFS(*procPath)
if err != nil {
return nil, err
}
c.connections = typedDesc{prometheus.NewDesc(
prometheus.BuildFQName(namespace, subsystem, "connections_total"),
"The total number of connections made.",
nil, nil,
), prometheus.CounterValue}
c.incomingPackets = typedDesc{prometheus.NewDesc(
prometheus.BuildFQName(namespace, subsystem, "incoming_packets_total"),
"The total number of incoming packets.",
nil, nil,
), prometheus.CounterValue}
c.outgoingPackets = typedDesc{prometheus.NewDesc(
prometheus.BuildFQName(namespace, subsystem, "outgoing_packets_total"),
"The total number of outgoing packets.",
nil, nil,
), prometheus.CounterValue}
c.incomingBytes = typedDesc{prometheus.NewDesc(
prometheus.BuildFQName(namespace, subsystem, "incoming_bytes_total"),
"The total amount of incoming data.",
nil, nil,
), prometheus.CounterValue}
c.outgoingBytes = typedDesc{prometheus.NewDesc(
prometheus.BuildFQName(namespace, subsystem, "outgoing_bytes_total"),
"The total amount of outgoing data.",
nil, nil,
), prometheus.CounterValue}
c.backendConnectionsActive = typedDesc{prometheus.NewDesc(
prometheus.BuildFQName(namespace, subsystem, "backend_connections_active"),
"The current active connections by local and remote address.",
ipvsBackendLabelNames, nil,
), prometheus.GaugeValue}
c.backendConnectionsInact = typedDesc{prometheus.NewDesc(
prometheus.BuildFQName(namespace, subsystem, "backend_connections_inactive"),
"The current inactive connections by local and remote address.",
ipvsBackendLabelNames, nil,
), prometheus.GaugeValue}
c.backendWeight = typedDesc{prometheus.NewDesc(
prometheus.BuildFQName(namespace, subsystem, "backend_weight"),
"The current backend weight by local and remote address.",
ipvsBackendLabelNames, nil,
), prometheus.GaugeValue}
return &c, nil
}
func (c *ipvsCollector) Update(ch chan<- prometheus.Metric) error {
ipvsStats, err := c.fs.NewIPVSStats()
if err != nil {
// Cannot access ipvs metrics, report no error.
if os.IsNotExist(err) {
log.Debug("ipvs collector metrics are not available for this system")
return nil
}
return fmt.Errorf("could not get IPVS stats: %s", err)
}
ch <- c.connections.mustNewConstMetric(float64(ipvsStats.Connections))
ch <- c.incomingPackets.mustNewConstMetric(float64(ipvsStats.IncomingPackets))
ch <- c.outgoingPackets.mustNewConstMetric(float64(ipvsStats.OutgoingPackets))
ch <- c.incomingBytes.mustNewConstMetric(float64(ipvsStats.IncomingBytes))
ch <- c.outgoingBytes.mustNewConstMetric(float64(ipvsStats.OutgoingBytes))
backendStats, err := c.fs.NewIPVSBackendStatus()
if err != nil {
return fmt.Errorf("could not get backend status: %s", err)
}
for _, backend := range backendStats {
labelValues := []string{
backend.LocalAddress.String(),
strconv.FormatUint(uint64(backend.LocalPort), 10),
backend.RemoteAddress.String(),
strconv.FormatUint(uint64(backend.RemotePort), 10),
backend.Proto,
}
ch <- c.backendConnectionsActive.mustNewConstMetric(float64(backend.ActiveConn), labelValues...)
ch <- c.backendConnectionsInact.mustNewConstMetric(float64(backend.InactConn), labelValues...)
ch <- c.backendWeight.mustNewConstMetric(float64(backend.Weight), labelValues...)
}
return nil
}
|
