/
source.go
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/
source.go
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// Copyright 2023 Ant Group Co., Ltd.
//
// 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 source
import (
"fmt"
"k8s.io/apimachinery/pkg/types"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/tools/record"
kubetypes "k8s.io/kubernetes/pkg/kubelet/types"
"github.com/secretflow/kuscia/pkg/agent/config"
"github.com/secretflow/kuscia/pkg/utils/nlog"
)
type Merger interface {
// Merge invoked when a change from a source is received. May also function as an incremental
// merger if you wish to consume changes incrementally. Must be reentrant when more than
// one source is defined.
Merge(source string, update interface{}) error
}
type InitConfig struct {
Namespace string
NodeName types.NodeName
SourceCfg *config.SourceCfg
KubeClient kubernetes.Interface
Updates chan<- kubetypes.PodUpdate
Recorder record.EventRecorder
}
type Manager struct {
file *sourceFile
apiserver *sourceApiserver
// Invoked when an update is sent to a source.
merger Merger
sourceCh chan kubetypes.PodUpdate
}
func NewManager(cfg *InitConfig) *Manager {
m := &Manager{
sourceCh: make(chan kubetypes.PodUpdate, 20),
merger: newPodStorage(cfg.Updates, PodConfigNotificationIncremental, cfg.Recorder),
}
if cfg.KubeClient != nil {
m.apiserver = newApiserverSource(cfg, m.sourceCh)
}
if cfg.SourceCfg.File.Enable && cfg.SourceCfg.File.Path != "" {
m.file = newSourceFile(cfg, m.sourceCh)
}
return m
}
// Run starts all sources
func (m *Manager) Run(stopCh <-chan struct{}) error {
go m.listen()
if m.apiserver != nil {
if err := m.apiserver.run(stopCh); err != nil {
return fmt.Errorf("failed to run apiserver source, detail-> %v", err)
}
}
if m.file != nil {
m.file.run()
}
return nil
}
func (m *Manager) listen() {
for change := range m.sourceCh {
nlog.Debugf("Receive pod event from source %q", change.Source)
if err := m.merger.Merge(change.Source, change); err != nil {
nlog.Errorf("failed to merge pods from %v: %v", change.Source, err)
}
}
}
func (m *Manager) AllReady() bool {
return true
}