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main.go
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main.go
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/*
Copyright 2018 The Kubernetes 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 main
import (
"flag"
"io"
"os"
"path"
"path/filepath"
"strings"
"time"
"github.com/AliyunContainerService/csi-plugin/pkg/disk"
"github.com/AliyunContainerService/csi-plugin/pkg/lvm"
"github.com/AliyunContainerService/csi-plugin/pkg/nas"
"github.com/AliyunContainerService/csi-plugin/pkg/oss"
log "github.com/Sirupsen/logrus"
)
func init() {
flag.Set("logtostderr", "true")
}
const (
LOGFILE_PREFIX = "/var/log/alicloud/"
MB_SIZE = 1024 * 1024
TYPE_PLUGIN_DISK = "diskplugin.csi.alibabacloud.com"
TYPE_PLUGIN_NAS = "nasplugin.csi.alibabacloud.com"
TYPE_PLUGIN_OSS = "ossplugin.csi.alibabacloud.com"
TYPE_PLUGIN_LVM = "lvmplugin.csi.alibabacloud.com"
)
var _BRANCH_ = ""
var _VERSION_ = ""
var _COMMITID_ = ""
var _BUILDTIME_ = ""
var (
endpoint = flag.String("endpoint", "unix://tmp/csi.sock", "CSI endpoint")
nodeId = flag.String("nodeid", "", "node id")
runAsController = flag.Bool("run-as-controller", false, "Only run as controller service")
driver = flag.String("driver", TYPE_PLUGIN_DISK, "CSI Driver")
)
func init() {
setLogAttribute()
}
// Nas CSI Plugin
func main() {
flag.Parse()
if err := createPersistentStorage(path.Join(nas.PluginFolder, "controller")); err != nil {
log.Errorf("failed to create persistent storage for controller: %v", err)
os.Exit(1)
}
if err := createPersistentStorage(path.Join(nas.PluginFolder, "node")); err != nil {
log.Errorf("failed to create persistent storage for node: %v", err)
os.Exit(1)
}
drivername := *driver
log.Infof("CSI Driver Name: %s, %s, %s", drivername, *nodeId, *endpoint)
log.Infof("CSI Driver Branch: %s, Version: %s, Build time: %s\n", _BRANCH_, _VERSION_, _BUILDTIME_)
if drivername == TYPE_PLUGIN_NAS {
driver := nas.NewDriver(*nodeId, *endpoint)
driver.Run()
} else if drivername == TYPE_PLUGIN_OSS {
driver := oss.NewDriver(*nodeId, *endpoint)
driver.Run()
} else if drivername == TYPE_PLUGIN_DISK {
driver := disk.NewDriver(*nodeId, *endpoint, *runAsController)
driver.Run()
} else if drivername == TYPE_PLUGIN_LVM {
driver := lvm.NewDriver(*nodeId, *endpoint)
driver.Run()
} else {
log.Errorf("CSI start failed, not support driver: %s", drivername)
}
os.Exit(0)
}
func createPersistentStorage(persistentStoragePath string) error {
return os.MkdirAll(persistentStoragePath, os.FileMode(0755))
}
// rotate log file by 2M bytes
// default print log to stdout and file both.
func setLogAttribute() {
logType := os.Getenv("LOG_TYPE")
logType = strings.ToLower(logType)
if logType != "stdout" && logType != "host" {
logType = "both"
}
if logType == "stdout" {
return
}
driver := filepath.Base(os.Args[0])
os.MkdirAll(LOGFILE_PREFIX, os.FileMode(0755))
logFile := LOGFILE_PREFIX + driver + ".log"
f, err := os.OpenFile(logFile, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
if err != nil {
os.Exit(1)
}
// rotate the log file if too large
if fi, err := f.Stat(); err == nil && fi.Size() > 2*MB_SIZE {
f.Close()
timeStr := time.Now().Format("-2006-01-02-15:04:05")
timedLogfile := LOGFILE_PREFIX + driver + timeStr + ".log"
os.Rename(logFile, timedLogfile)
f, err = os.OpenFile(logFile, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
if err != nil {
os.Exit(1)
}
}
if logType == "both" {
mw := io.MultiWriter(os.Stdout, f)
log.SetOutput(mw)
} else {
log.SetOutput(f)
}
}