b6392a4b07
Add a new cidrset named `multicidrset` which extends the current cidrset mechanism to track allocatable Pod and Service CIDRs. multicidrset stores the info about allocated CIDRs in a Map as opposed to the current cidrset implementation where it is stored in a bitmap.
79 lines
2.3 KiB
Go
79 lines
2.3 KiB
Go
/*
|
|
Copyright 2022 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 multicidrset
|
|
|
|
import (
|
|
"sync"
|
|
|
|
"k8s.io/component-base/metrics"
|
|
"k8s.io/component-base/metrics/legacyregistry"
|
|
)
|
|
|
|
const nodeIpamSubsystem = "node_ipam_controller"
|
|
|
|
var (
|
|
cidrSetAllocations = metrics.NewCounterVec(
|
|
&metrics.CounterOpts{
|
|
Subsystem: nodeIpamSubsystem,
|
|
Name: "multicidrset_cidrs_allocations_total",
|
|
Help: "Counter measuring total number of CIDR allocations.",
|
|
StabilityLevel: metrics.ALPHA,
|
|
},
|
|
[]string{"clusterCIDR"},
|
|
)
|
|
cidrSetReleases = metrics.NewCounterVec(
|
|
&metrics.CounterOpts{
|
|
Subsystem: nodeIpamSubsystem,
|
|
Name: "multicidrset_cidrs_releases_total",
|
|
Help: "Counter measuring total number of CIDR releases.",
|
|
StabilityLevel: metrics.ALPHA,
|
|
},
|
|
[]string{"clusterCIDR"},
|
|
)
|
|
cidrSetUsage = metrics.NewGaugeVec(
|
|
&metrics.GaugeOpts{
|
|
Subsystem: nodeIpamSubsystem,
|
|
Name: "multicidrset_usage_cidrs",
|
|
Help: "Gauge measuring percentage of allocated CIDRs.",
|
|
StabilityLevel: metrics.ALPHA,
|
|
},
|
|
[]string{"clusterCIDR"},
|
|
)
|
|
cidrSetAllocationTriesPerRequest = metrics.NewHistogramVec(
|
|
&metrics.HistogramOpts{
|
|
Subsystem: nodeIpamSubsystem,
|
|
Name: "multicidrset_allocation_tries_per_request",
|
|
Help: "Histogram measuring CIDR allocation tries per request.",
|
|
StabilityLevel: metrics.ALPHA,
|
|
Buckets: metrics.ExponentialBuckets(1, 5, 5),
|
|
},
|
|
[]string{"clusterCIDR"},
|
|
)
|
|
)
|
|
|
|
var registerMetrics sync.Once
|
|
|
|
// registerCidrsetMetrics the metrics that are to be monitored.
|
|
func registerCidrsetMetrics() {
|
|
registerMetrics.Do(func() {
|
|
legacyregistry.MustRegister(cidrSetAllocations)
|
|
legacyregistry.MustRegister(cidrSetReleases)
|
|
legacyregistry.MustRegister(cidrSetUsage)
|
|
legacyregistry.MustRegister(cidrSetAllocationTriesPerRequest)
|
|
})
|
|
}
|