159 lines
3.5 KiB
Go
159 lines
3.5 KiB
Go
/*
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* Copyright 2022 The Dragonfly Authors
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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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*/
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package config
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import (
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"errors"
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"net"
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"time"
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"google.golang.org/grpc/resolver"
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managerv1 "d7y.io/api/pkg/apis/manager/v1"
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logger "d7y.io/dragonfly/v2/internal/dflog"
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"d7y.io/dragonfly/v2/pkg/reachable"
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)
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var (
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ErrUnimplemented = errors.New("operation is not implemented")
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)
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type dynconfigLocal struct {
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config *DaemonOption
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observers map[Observer]struct{}
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done chan bool
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}
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// newDynconfigLocal returns a new local dynconfig instence.
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func newDynconfigLocal(cfg *DaemonOption) (Dynconfig, error) {
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return &dynconfigLocal{
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config: cfg,
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observers: map[Observer]struct{}{},
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done: make(chan bool),
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}, nil
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}
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// Get the dynamic schedulers resolve addrs.
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func (d *dynconfigLocal) GetResolveSchedulerAddrs() ([]resolver.Address, error) {
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var (
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addrs = map[string]bool{}
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resolveAddrs = []resolver.Address{}
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)
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for _, schedulerAddr := range d.config.Scheduler.NetAddrs {
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addr := schedulerAddr.Addr
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r := reachable.New(&reachable.Config{Address: addr})
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if err := r.Check(); err != nil {
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logger.Warnf("scheduler address %s is unreachable", addr)
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continue
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}
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if addrs[addr] {
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continue
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}
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host, _, err := net.SplitHostPort(addr)
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if err != nil {
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continue
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}
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resolveAddrs = append(resolveAddrs, resolver.Address{
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ServerName: host,
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Addr: addr,
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})
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addrs[addr] = true
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}
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return resolveAddrs, nil
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}
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// Get the dynamic schedulers config from local.
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func (d *dynconfigLocal) GetSchedulers() ([]*managerv1.Scheduler, error) {
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return nil, ErrUnimplemented
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}
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// Get the dynamic object storage config from local.
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func (d *dynconfigLocal) GetObjectStorage() (*managerv1.ObjectStorage, error) {
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return nil, ErrUnimplemented
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}
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// Get the dynamic config from local.
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func (d *dynconfigLocal) Get() (*DynconfigData, error) {
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return nil, ErrUnimplemented
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}
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// Refresh refreshes dynconfig in cache.
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func (d *dynconfigLocal) Refresh() error {
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return nil
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}
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// Register allows an instance to register itself to listen/observe events.
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func (d *dynconfigLocal) Register(l Observer) {
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d.observers[l] = struct{}{}
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}
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// Deregister allows an instance to remove itself from the collection of observers/listeners.
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func (d *dynconfigLocal) Deregister(l Observer) {
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delete(d.observers, l)
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}
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// Notify publishes new events to listeners.
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func (d *dynconfigLocal) Notify() error {
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data, err := d.Get()
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if err != nil {
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return err
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}
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for o := range d.observers {
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o.OnNotify(data)
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}
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return nil
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}
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// Serve the dynconfig listening service.
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func (d *dynconfigLocal) Serve() error {
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if err := d.Notify(); err != nil {
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return err
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}
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go d.watch()
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return nil
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}
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// watch the dynconfig events.
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func (d *dynconfigLocal) watch() {
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tick := time.NewTicker(watchInterval)
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for {
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select {
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case <-tick.C:
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if err := d.Notify(); err != nil {
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logger.Error("dynconfig notify failed", err)
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}
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case <-d.done:
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return
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}
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}
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}
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// Stop the dynconfig listening service.
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func (d *dynconfigLocal) Stop() error {
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close(d.done)
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return nil
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}
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