config

Documentation

Overview

Copyright 2014 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.

// Copyright 2020 Antrea 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.

Modifies: - Remove package import comment

Package config provides decoupling between various configuration sources (etcd, files,...) and the pieces that actually care about them (loadbalancer, proxy). Config takes 1 or more configuration sources and allows for incremental (add/remove) and full replace (set) changes from each of the sources, then creates a union of the configuration and provides a unified view for both service handlers as well as endpoint handlers. There is no attempt to resolve conflicts of any sort. Basic idea is that each configuration source gets a channel from the Config service and pushes updates to it via that channel. Config then keeps track of incremental & replace changes and distributes them to listeners as appropriate.

Index

• type EndpointsConfig
  • func NewEndpointsConfig(endpointsInformer coreinformers.EndpointsInformer, resyncPeriod time.Duration) *EndpointsConfig
  • func (c *EndpointsConfig) RegisterEventHandler(handler EndpointsHandler)
  • func (c *EndpointsConfig) Run(stopCh <-chan struct{})
• type EndpointsHandler
• type ServiceConfig
  • func NewServiceConfig(serviceInformer coreinformers.ServiceInformer, resyncPeriod time.Duration) *ServiceConfig
  • func (c *ServiceConfig) RegisterEventHandler(handler ServiceHandler)
  • func (c *ServiceConfig) Run(stopCh <-chan struct{})
• type ServiceHandler

Types

type EndpointsConfig

type EndpointsConfig struct {
	// contains filtered or unexported fields
}

EndpointsConfig tracks a set of endpoints configurations.

func NewEndpointsConfig

func NewEndpointsConfig(endpointsInformer coreinformers.EndpointsInformer, resyncPeriod time.Duration) *EndpointsConfig

NewEndpointsConfig creates a new EndpointsConfig.

func (*EndpointsConfig) RegisterEventHandler

func (c *EndpointsConfig) RegisterEventHandler(handler EndpointsHandler)

RegisterEventHandler registers a handler which is called on every endpoints change.

func (*EndpointsConfig) Run

func (c *EndpointsConfig) Run(stopCh <-chan struct{})

Run waits for cache synced and invokes handlers after syncing.

type EndpointsHandler

type EndpointsHandler interface {
	// OnEndpointsAdd is called whenever creation of new endpoints object
	// is observed.
	OnEndpointsAdd(endpoints *v1.Endpoints)
	// OnEndpointsUpdate is called whenever modification of an existing
	// endpoints object is observed.
	OnEndpointsUpdate(oldEndpoints, endpoints *v1.Endpoints)
	// OnEndpointsDelete is called whenever deletion of an existing endpoints
	// object is observed.
	OnEndpointsDelete(endpoints *v1.Endpoints)
	// OnEndpointsSynced is called once all the initial event handlers were
	// called and the state is fully propagated to local cache.
	OnEndpointsSynced()
}

EndpointsHandler is an abstract interface of objects which receive notifications about endpoints object changes.

type ServiceConfig

type ServiceConfig struct {
	// contains filtered or unexported fields
}

ServiceConfig tracks a set of service configurations.

func NewServiceConfig

func NewServiceConfig(serviceInformer coreinformers.ServiceInformer, resyncPeriod time.Duration) *ServiceConfig

NewServiceConfig creates a new ServiceConfig.

func (*ServiceConfig) RegisterEventHandler

func (c *ServiceConfig) RegisterEventHandler(handler ServiceHandler)

RegisterEventHandler registers a handler which is called on every service change.

func (*ServiceConfig) Run

func (c *ServiceConfig) Run(stopCh <-chan struct{})

Run waits for cache synced and invokes handlers after syncing.

type ServiceHandler

type ServiceHandler interface {
	// OnServiceAdd is called whenever creation of new service object
	// is observed.
	OnServiceAdd(service *v1.Service)
	// OnServiceUpdate is called whenever modification of an existing
	// service object is observed.
	OnServiceUpdate(oldService, service *v1.Service)
	// OnServiceDelete is called whenever deletion of an existing service
	// object is observed.
	OnServiceDelete(service *v1.Service)
	// OnServiceSynced is called once all the initial event handlers were
	// called and the state is fully propagated to local cache.
	OnServiceSynced()
}

ServiceHandler is an abstract interface of objects which receive notifications about service object changes.