/
root.go
125 lines (105 loc) · 3.35 KB
/
root.go
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/*
* Copyright 2023 The Dragonfly 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.
*/
package cmd
import (
"context"
"fmt"
"os"
"path"
"github.com/spf13/cobra"
"d7y.io/dragonfly/v2/cmd/dependency"
logger "d7y.io/dragonfly/v2/internal/dflog"
"d7y.io/dragonfly/v2/pkg/dfpath"
"d7y.io/dragonfly/v2/pkg/types"
"d7y.io/dragonfly/v2/trainer"
"d7y.io/dragonfly/v2/trainer/config"
"d7y.io/dragonfly/v2/version"
)
var (
cfg *config.Config
)
// rootCmd represents the commonv1 command when called without any subcommands.
var rootCmd = &cobra.Command{
Use: "trainer",
Short: "the trainer of dragonfly",
Long: `Trainer is a long-running process and is mainly responsible for receiving historical download and network topology records,
preprocessing original record data, establing datasets and training machine learning and AI models that support scheduler peer-scheduling decisions.`,
Args: cobra.NoArgs,
DisableAutoGenTag: true,
SilenceUsage: true,
RunE: func(cmd *cobra.Command, args []string) error {
// Convert config.
if err := cfg.Convert(); err != nil {
return err
}
// Validate config.
if err := cfg.Validate(); err != nil {
return err
}
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
// Initialize dfpath.
d, err := initDfpath(&cfg.Server)
if err != nil {
return err
}
rotateConfig := logger.LogRotateConfig{
MaxSize: cfg.Server.LogMaxSize,
MaxAge: cfg.Server.LogMaxAge,
MaxBackups: cfg.Server.LogMaxBackups}
// Initialize logger.
if err := logger.InitTrainer(cfg.Verbose, cfg.Console, d.LogDir(), rotateConfig); err != nil {
return fmt.Errorf("init trainer logger: %w", err)
}
logger.RedirectStdoutAndStderr(cfg.Console, path.Join(d.LogDir(), types.TrainerName))
return runTrainer(ctx, d)
},
}
// Execute adds all child commands to the root command and sets flags appropriately.
// This is called by main.main(). It only needs to happen once to the rootCmd.
func Execute() {
if err := rootCmd.Execute(); err != nil {
logger.Error(err)
os.Exit(1)
}
}
func init() {
// Initialize default scheduler config.
cfg = config.New()
// Initialize command and config.
dependency.InitCommandAndConfig(rootCmd, true, cfg)
}
func initDfpath(cfg *config.ServerConfig) (dfpath.Dfpath, error) {
var options []dfpath.Option
if cfg.LogDir != "" {
options = append(options, dfpath.WithLogDir(cfg.LogDir))
}
if cfg.DataDir != "" {
options = append(options, dfpath.WithDataDir(cfg.DataDir))
}
return dfpath.New(options...)
}
func runTrainer(ctx context.Context, d dfpath.Dfpath) error {
logger.Infof("version:\n%s", version.Version())
ff := dependency.InitMonitor(cfg.PProfPort, cfg.Telemetry)
defer ff()
svr, err := trainer.New(ctx, cfg, d)
if err != nil {
return err
}
dependency.SetupQuitSignalHandler(func() { svr.Stop() })
return svr.Serve()
}