mirror of
https://github.com/alibaba/higress.git
synced 2026-02-27 06:00:51 +08:00
126 lines
3.2 KiB
Go
126 lines
3.2 KiB
Go
// Copyright (c) 2022 Alibaba Group Holding Ltd.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package registry
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import (
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"net"
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"strings"
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"time"
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apiv1 "github.com/alibaba/higress/v2/api/networking/v1"
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"istio.io/api/networking/v1alpha3"
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"istio.io/pkg/log"
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)
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const (
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Zookeeper ServiceRegistryType = "zookeeper"
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Eureka ServiceRegistryType = "eureka"
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Consul ServiceRegistryType = "consul"
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Nacos ServiceRegistryType = "nacos"
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Nacos2 ServiceRegistryType = "nacos2"
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Nacos3 ServiceRegistryType = "nacos3"
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Static ServiceRegistryType = "static"
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DNS ServiceRegistryType = "dns"
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Healthy WatcherStatus = "healthy"
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UnHealthy WatcherStatus = "unhealthy"
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DefaultDialTimeout = time.Second * 3
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)
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type ServiceRegistryType string
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func (srt *ServiceRegistryType) String() string {
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return string(*srt)
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}
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type WatcherStatus string
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func (ws *WatcherStatus) String() string {
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return string(*ws)
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}
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type Watcher interface {
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Run()
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Stop()
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IsHealthy() bool
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IsReady() bool
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GetRegistryType() string
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AppendServiceUpdateHandler(f func())
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ReadyHandler(f func(bool))
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}
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type BaseWatcher struct {
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UpdateService ServiceUpdateHandler
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Ready ReadyHandler
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ReadyStatus bool
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}
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func (w *BaseWatcher) Run() {}
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func (w *BaseWatcher) Stop() {}
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func (w *BaseWatcher) IsHealthy() bool { return true }
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func (w *BaseWatcher) IsReady() bool { return w.ReadyStatus }
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func (w *BaseWatcher) GetRegistryType() string { return "" }
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func (w *BaseWatcher) AppendServiceUpdateHandler(f func()) {
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w.UpdateService = f
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}
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func (w *BaseWatcher) ReadyHandler(f func(isReady bool)) {
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w.Ready = func(isReady bool) {
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w.ReadyStatus = isReady
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f(isReady)
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}
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}
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type (
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ServiceUpdateHandler func()
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ReadyHandler func(bool)
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)
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func ProbeWatcherStatus(host string, port string) WatcherStatus {
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address := net.JoinHostPort(host, port)
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conn, err := net.DialTimeout("tcp", address, DefaultDialTimeout)
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if err != nil || conn == nil {
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return UnHealthy
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}
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_ = conn.Close()
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return Healthy
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}
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func GetServiceVport(host string, vport *apiv1.RegistryConfig_VPort) *v1alpha3.ServicePort {
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if vport == nil {
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log.Warnf("there is no vport exist for: %s, skip", host)
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return nil
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}
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for _, service := range vport.Services {
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if strings.EqualFold(service.Name, host) && isValidPort(service.Value) {
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log.Infof("service %s vport exist, use service vport %d", host, service.Value)
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return &v1alpha3.ServicePort{
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Number: service.Value,
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}
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}
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}
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if isValidPort(vport.Default) {
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log.Infof("there is only default vport exist, use default vport %d", vport.Default)
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return &v1alpha3.ServicePort{
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Number: vport.Default,
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}
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}
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return nil
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}
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func isValidPort(port uint32) bool {
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return port > 0 && port <= 65535
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}
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