72 lines
1.8 KiB
Go
72 lines
1.8 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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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 localkube
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import (
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"os"
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"time"
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"k8s.io/minikube/pkg/util"
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)
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// Server represents a component that Kubernetes depends on. It allows for the management of
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// the lifecycle of the component.
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type Server interface {
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// Start immediately starts the component.
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Start()
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// Stop begins the process of stopping the component.
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Stop()
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// Name returns a unique identifier for the component.
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Name() string
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}
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// SimpleServer provides a minimal implementation of Server.
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type SimpleServer struct {
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ComponentName string
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Interval time.Duration
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serverRoutine func() error
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stopChannel chan struct{}
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}
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func NewSimpleServer(componentName string, msInterval int32, serverRoutine func() error) *SimpleServer {
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return &SimpleServer{
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ComponentName: componentName,
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Interval: time.Duration(msInterval) * time.Millisecond,
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serverRoutine: serverRoutine,
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stopChannel: make(chan struct{}),
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}
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}
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// Start calls startup function.
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func (s *SimpleServer) Start() {
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go util.Until(s.serverRoutine, os.Stdout, s.ComponentName, s.Interval, s.stopChannel)
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}
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// Stop calls shutdown function.
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func (s *SimpleServer) Stop() {
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close(s.stopChannel)
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}
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// Name returns the name of the service.
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func (s SimpleServer) Name() string {
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return s.ComponentName
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}
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