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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| /* | ||
| Copyright 2016 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 app implements a server that runs a set of active | ||
| // components. This includes replication controllers, service endpoints and | ||
| // nodes. | ||
| // | ||
| package app | ||
|
|
||
| import ( | ||
| "net/http" | ||
|
|
||
| "k8s.io/apimachinery/pkg/runtime/schema" | ||
| endpointslicecontroller "k8s.io/kubernetes/pkg/controller/endpointslice" | ||
| ) | ||
|
|
||
| func startEndpointSliceController(ctx ControllerContext) (http.Handler, bool, error) { | ||
| if !ctx.AvailableResources[schema.GroupVersionResource{Group: "discovery", Version: "v1alpha1", Resource: "endpointslices"}] { | ||
| return nil, false, nil | ||
| } | ||
|
|
||
| go endpointslicecontroller.NewController( | ||
| ctx.InformerFactory.Core().V1().Pods(), | ||
| ctx.InformerFactory.Core().V1().Services(), | ||
| ctx.InformerFactory.Core().V1().Nodes(), | ||
| ctx.InformerFactory.Discovery().V1alpha1().EndpointSlices(), | ||
| ctx.ComponentConfig.EndpointSliceController.MaxEndpointsPerSlice, | ||
| ctx.ClientBuilder.ClientOrDie("endpointslice-controller"), | ||
| ).Run(int(ctx.ComponentConfig.EndpointSliceController.ConcurrentServiceEndpointSyncs), ctx.Stop) | ||
| return nil, true, nil | ||
| } |
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81 changes: 81 additions & 0 deletions
81
cmd/kube-controller-manager/app/options/endpointslicecontroller.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| /* | ||
| Copyright 2019 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 options | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "github.com/spf13/pflag" | ||
|
|
||
| endpointsliceconfig "k8s.io/kubernetes/pkg/controller/endpointslice/config" | ||
| ) | ||
|
|
||
| const ( | ||
| minConcurrentServiceEndpointSyncs = 1 | ||
| maxConcurrentServiceEndpointSyncs = 50 | ||
| minMaxEndpointsPerSlice = 1 | ||
| maxMaxEndpointsPerSlice = 1000 | ||
| ) | ||
|
|
||
| // EndpointSliceControllerOptions holds the EndpointSliceController options. | ||
| type EndpointSliceControllerOptions struct { | ||
| *endpointsliceconfig.EndpointSliceControllerConfiguration | ||
| } | ||
|
|
||
| // AddFlags adds flags related to EndpointSliceController for controller manager to the specified FlagSet. | ||
| func (o *EndpointSliceControllerOptions) AddFlags(fs *pflag.FlagSet) { | ||
| if o == nil { | ||
| return | ||
| } | ||
|
|
||
| fs.Int32Var(&o.ConcurrentServiceEndpointSyncs, "concurrent-service-endpoint-syncs", o.ConcurrentServiceEndpointSyncs, "The number of service endpoint syncing operations that will be done concurrently. Larger number = faster endpoint slice updating, but more CPU (and network) load. Defaults to 5.") | ||
| fs.Int32Var(&o.MaxEndpointsPerSlice, "max-endpoints-per-slice", o.MaxEndpointsPerSlice, "The maximum number of endpoints that will be added to an EndpointSlice. More endpoints per slice will result in less endpoint slices, but larger resources. Defaults to 100.") | ||
| } | ||
|
|
||
| // ApplyTo fills up EndpointSliceController config with options. | ||
| func (o *EndpointSliceControllerOptions) ApplyTo(cfg *endpointsliceconfig.EndpointSliceControllerConfiguration) error { | ||
| if o == nil { | ||
| return nil | ||
| } | ||
|
|
||
| cfg.ConcurrentServiceEndpointSyncs = o.ConcurrentServiceEndpointSyncs | ||
| cfg.MaxEndpointsPerSlice = o.MaxEndpointsPerSlice | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| // Validate checks validation of EndpointSliceControllerOptions. | ||
| func (o *EndpointSliceControllerOptions) Validate() []error { | ||
| if o == nil { | ||
| return nil | ||
| } | ||
|
|
||
| errs := []error{} | ||
|
|
||
| if o.ConcurrentServiceEndpointSyncs < minConcurrentServiceEndpointSyncs { | ||
| errs = append(errs, fmt.Errorf("concurrent-service-endpoint-syncs must not be less than %d, but got %d", minConcurrentServiceEndpointSyncs, o.ConcurrentServiceEndpointSyncs)) | ||
| } else if o.ConcurrentServiceEndpointSyncs > maxConcurrentServiceEndpointSyncs { | ||
| errs = append(errs, fmt.Errorf("concurrent-service-endpoint-syncs must not be more than %d, but got %d", maxConcurrentServiceEndpointSyncs, o.ConcurrentServiceEndpointSyncs)) | ||
| } | ||
|
|
||
| if o.MaxEndpointsPerSlice < minMaxEndpointsPerSlice { | ||
| errs = append(errs, fmt.Errorf("max-endpoints-per-slice must not be less than %d, but got %d", minMaxEndpointsPerSlice, o.MaxEndpointsPerSlice)) | ||
| } else if o.MaxEndpointsPerSlice > maxMaxEndpointsPerSlice { | ||
| errs = append(errs, fmt.Errorf("max-endpoints-per-slice must not be more than %d, but got %d", maxMaxEndpointsPerSlice, o.MaxEndpointsPerSlice)) | ||
| } | ||
|
|
||
| return errs | ||
| } |
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