-
Notifications
You must be signed in to change notification settings - Fork 39.4k
/
metrics.go
149 lines (139 loc) · 5.21 KB
/
metrics.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
/*
Copyright 2020 The Kubernetes 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.
*/
package metrics
import (
"sync"
"k8s.io/component-base/metrics"
"k8s.io/component-base/metrics/legacyregistry"
)
// EndpointSliceMirroringSubsystem is the name of the subsystem used for
// EndpointSliceMirroring controller.
const EndpointSliceMirroringSubsystem = "endpoint_slice_mirroring_controller"
var (
// EndpointsAddedPerSync tracks the number of endpoints added on each
// Endpoints sync.
EndpointsAddedPerSync = metrics.NewHistogramVec(
&metrics.HistogramOpts{
Subsystem: EndpointSliceMirroringSubsystem,
Name: "endpoints_added_per_sync",
Help: "Number of endpoints added on each Endpoints sync",
StabilityLevel: metrics.ALPHA,
Buckets: metrics.ExponentialBuckets(2, 2, 15),
},
[]string{},
)
// EndpointsUpdatedPerSync tracks the number of endpoints updated on each
// Endpoints sync.
EndpointsUpdatedPerSync = metrics.NewHistogramVec(
&metrics.HistogramOpts{
Subsystem: EndpointSliceMirroringSubsystem,
Name: "endpoints_updated_per_sync",
Help: "Number of endpoints updated on each Endpoints sync",
StabilityLevel: metrics.ALPHA,
Buckets: metrics.ExponentialBuckets(2, 2, 15),
},
[]string{},
)
// EndpointsRemovedPerSync tracks the number of endpoints removed on each
// Endpoints sync.
EndpointsRemovedPerSync = metrics.NewHistogramVec(
&metrics.HistogramOpts{
Subsystem: EndpointSliceMirroringSubsystem,
Name: "endpoints_removed_per_sync",
Help: "Number of endpoints removed on each Endpoints sync",
StabilityLevel: metrics.ALPHA,
Buckets: metrics.ExponentialBuckets(2, 2, 15),
},
[]string{},
)
// AddressesSkippedPerSync tracks the number of addresses skipped on each
// Endpoints sync due to being invalid or exceeding MaxEndpointsPerSubset.
AddressesSkippedPerSync = metrics.NewHistogramVec(
&metrics.HistogramOpts{
Subsystem: EndpointSliceMirroringSubsystem,
Name: "addresses_skipped_per_sync",
Help: "Number of addresses skipped on each Endpoints sync due to being invalid or exceeding MaxEndpointsPerSubset",
StabilityLevel: metrics.ALPHA,
Buckets: metrics.ExponentialBuckets(2, 2, 15),
},
[]string{},
)
// EndpointsSyncDuration tracks how long syncEndpoints() takes in a number
// of Seconds.
EndpointsSyncDuration = metrics.NewHistogramVec(
&metrics.HistogramOpts{
Subsystem: EndpointSliceMirroringSubsystem,
Name: "endpoints_sync_duration",
Help: "Duration of syncEndpoints() in seconds",
StabilityLevel: metrics.ALPHA,
Buckets: metrics.ExponentialBuckets(0.001, 2, 15),
},
[]string{},
)
// EndpointsDesired tracks the total number of desired endpoints.
EndpointsDesired = metrics.NewGaugeVec(
&metrics.GaugeOpts{
Subsystem: EndpointSliceMirroringSubsystem,
Name: "endpoints_desired",
Help: "Number of endpoints desired",
StabilityLevel: metrics.ALPHA,
},
[]string{},
)
// NumEndpointSlices tracks the number of EndpointSlices in a cluster.
NumEndpointSlices = metrics.NewGaugeVec(
&metrics.GaugeOpts{
Subsystem: EndpointSliceMirroringSubsystem,
Name: "num_endpoint_slices",
Help: "Number of EndpointSlices",
StabilityLevel: metrics.ALPHA,
},
[]string{},
)
// DesiredEndpointSlices tracks the number of EndpointSlices that would
// exist with perfect endpoint allocation.
DesiredEndpointSlices = metrics.NewGaugeVec(
&metrics.GaugeOpts{
Subsystem: EndpointSliceMirroringSubsystem,
Name: "desired_endpoint_slices",
Help: "Number of EndpointSlices that would exist with perfect endpoint allocation",
StabilityLevel: metrics.ALPHA,
},
[]string{},
)
// EndpointSliceChanges tracks the number of changes to Endpoint Slices.
EndpointSliceChanges = metrics.NewCounterVec(
&metrics.CounterOpts{
Subsystem: EndpointSliceMirroringSubsystem,
Name: "changes",
Help: "Number of EndpointSlice changes",
StabilityLevel: metrics.ALPHA,
},
[]string{"operation"},
)
)
var registerMetrics sync.Once
// RegisterMetrics registers EndpointSlice metrics.
func RegisterMetrics() {
registerMetrics.Do(func() {
legacyregistry.MustRegister(EndpointsAddedPerSync)
legacyregistry.MustRegister(EndpointsUpdatedPerSync)
legacyregistry.MustRegister(EndpointsRemovedPerSync)
legacyregistry.MustRegister(AddressesSkippedPerSync)
legacyregistry.MustRegister(EndpointsSyncDuration)
legacyregistry.MustRegister(EndpointsDesired)
legacyregistry.MustRegister(NumEndpointSlices)
legacyregistry.MustRegister(DesiredEndpointSlices)
legacyregistry.MustRegister(EndpointSliceChanges)
})
}