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cmd.go
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cmd.go
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// Copyright (C) 2020 Storj Labs, Inc.
// See LICENSE for copying information.
package main
import (
"log"
"os"
"runtime"
"strings"
"time"
"github.com/spf13/cobra"
"go.uber.org/zap"
"storj.io/common/errs2"
"storj.io/common/fpath"
"storj.io/common/storj"
"storj.io/common/sync2"
"storj.io/private/cfgstruct"
"storj.io/private/process"
"storj.io/private/version"
_ "storj.io/storj/private/version" // This attaches version information during release builds.
"storj.io/storj/storagenode"
)
const (
updaterServiceName = "storagenode-updater"
minCheckInterval = time.Minute
)
var (
// TODO: replace with config value of random bytes in storagenode config.
nodeID storj.NodeID
rootCmd = &cobra.Command{
Use: "storagenode-updater",
Short: "Version updater for storage node",
}
runCmd = &cobra.Command{
Use: "run",
Short: "Run the storagenode-updater for storage node",
Args: cobra.OnlyValidArgs,
RunE: cmdRun,
}
restartCmd = &cobra.Command{
Use: "restart-service <new binary path>",
Short: "Restart service with the new binary",
Args: cobra.ExactArgs(1),
RunE: cmdRestart,
}
runCfg struct {
storagenode.Config
BinaryLocation string `help:"the storage node executable binary location" default:"storagenode"`
ServiceName string `help:"storage node OS service name" default:"storagenode"`
// deprecated
Log string `help:"deprecated, use --log.output" default:""`
}
confDir string
identityDir string
)
func init() {
defaults := cfgstruct.DefaultsFlag(rootCmd)
defaultConfDir := fpath.ApplicationDir("storj", "storagenode")
defaultIdentityDir := fpath.ApplicationDir("storj", "identity", "storagenode")
cfgstruct.SetupFlag(zap.L(), rootCmd, &confDir, "config-dir", defaultConfDir, "main directory for storagenode configuration")
cfgstruct.SetupFlag(zap.L(), rootCmd, &identityDir, "identity-dir", defaultIdentityDir, "main directory for storagenode identity credentials")
rootCmd.AddCommand(runCmd)
rootCmd.AddCommand(restartCmd)
process.Bind(runCmd, &runCfg, defaults, cfgstruct.ConfDir(confDir), cfgstruct.IdentityDir(identityDir))
process.Bind(restartCmd, &runCfg, defaults, cfgstruct.ConfDir(confDir), cfgstruct.IdentityDir(identityDir))
}
func cmdRun(cmd *cobra.Command, args []string) (err error) {
if runCfg.Log != "" {
if err = openLog(runCfg.Log); err != nil {
zap.L().Error("Error creating new logger.", zap.Error(err))
}
}
if !fileExists(runCfg.BinaryLocation) {
zap.L().Fatal("Unable to find storage node executable binary.")
}
ident, err := runCfg.Identity.Load()
if err != nil {
zap.L().Fatal("Error loading identity.", zap.Error(err))
}
nodeID = ident.ID
if nodeID.IsZero() {
zap.L().Fatal("Empty node ID.")
}
zap.L().Info("Running on version", zap.String("version", version.Build.Version.String()))
ctx, _ := process.Ctx(cmd)
switch {
case runCfg.Version.CheckInterval <= 0:
err = loopFunc(ctx)
case runCfg.Version.CheckInterval < minCheckInterval:
zap.L().Error("Check interval below minimum. Overriding it minimum.",
zap.Stringer("Check Interval", runCfg.Version.CheckInterval),
zap.Stringer("Minimum Check Interval", minCheckInterval),
)
runCfg.Version.CheckInterval = minCheckInterval
fallthrough
default:
loop := sync2.NewCycle(runCfg.Version.CheckInterval)
err = loop.Run(ctx, loopFunc)
}
if err != nil && !errs2.IsCanceled(err) {
log.Fatal(err)
}
return nil
}
func fileExists(filename string) bool {
info, err := os.Stat(filename)
if os.IsNotExist(err) {
return false
}
return info.Mode().IsRegular()
}
func openLog(logPath string) error {
if runtime.GOOS == "windows" && !strings.HasPrefix(logPath, "winfile:///") {
logPath = "winfile:///" + logPath
}
logger, err := process.NewLoggerWithOutputPaths(logPath)
if err != nil {
return err
}
zap.ReplaceGlobals(logger)
return nil
}