90 lines
2.7 KiB
Go
90 lines
2.7 KiB
Go
/*
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Copyright 2022 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package multicidrset
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import (
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"sync"
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"k8s.io/component-base/metrics"
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"k8s.io/component-base/metrics/legacyregistry"
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)
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const nodeIpamSubsystem = "node_ipam_controller"
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var (
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cidrSetAllocations = metrics.NewCounterVec(
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&metrics.CounterOpts{
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Subsystem: nodeIpamSubsystem,
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Name: "multicidrset_cidrs_allocations_total",
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Help: "Counter measuring total number of CIDR allocations.",
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StabilityLevel: metrics.ALPHA,
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},
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[]string{"clusterCIDR"},
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)
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cidrSetReleases = metrics.NewCounterVec(
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&metrics.CounterOpts{
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Subsystem: nodeIpamSubsystem,
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Name: "multicidrset_cidrs_releases_total",
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Help: "Counter measuring total number of CIDR releases.",
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StabilityLevel: metrics.ALPHA,
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},
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[]string{"clusterCIDR"},
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)
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// This is a gauge, as in theory, a limit can increase or decrease.
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cidrSetMaxCidrs = metrics.NewGaugeVec(
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&metrics.GaugeOpts{
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Subsystem: nodeIpamSubsystem,
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Name: "multicirdset_max_cidrs",
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Help: "Maximum number of CIDRs that can be allocated.",
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StabilityLevel: metrics.ALPHA,
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},
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[]string{"clusterCIDR"},
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)
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cidrSetUsage = metrics.NewGaugeVec(
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&metrics.GaugeOpts{
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Subsystem: nodeIpamSubsystem,
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Name: "multicidrset_usage_cidrs",
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Help: "Gauge measuring percentage of allocated CIDRs.",
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StabilityLevel: metrics.ALPHA,
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},
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[]string{"clusterCIDR"},
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)
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cidrSetAllocationTriesPerRequest = metrics.NewHistogramVec(
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&metrics.HistogramOpts{
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Subsystem: nodeIpamSubsystem,
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Name: "multicidrset_allocation_tries_per_request",
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Help: "Histogram measuring CIDR allocation tries per request.",
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StabilityLevel: metrics.ALPHA,
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Buckets: metrics.ExponentialBuckets(1, 5, 5),
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},
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[]string{"clusterCIDR"},
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)
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)
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var registerMetrics sync.Once
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// registerCidrsetMetrics the metrics that are to be monitored.
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func registerCidrsetMetrics() {
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registerMetrics.Do(func() {
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legacyregistry.MustRegister(cidrSetAllocations)
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legacyregistry.MustRegister(cidrSetReleases)
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legacyregistry.MustRegister(cidrSetMaxCidrs)
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legacyregistry.MustRegister(cidrSetUsage)
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legacyregistry.MustRegister(cidrSetAllocationTriesPerRequest)
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})
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}
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