forked from rook/rook
Travis Nielsen
b94a99fb6e
Integration tests are failing with the ganesha pid location. No need for this argument. Signed-off-by: Travis Nielsen <tnielsen@redhat.com>
102 lines
3.3 KiB
Go
102 lines
3.3 KiB
Go
/*
|
|
Copyright 2019 The Rook Authors. All rights reserved.
|
|
|
|
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.
|
|
*/
|
|
|
|
// Portion of this file is comming from https://github.com/kubernetes-incubator/external-storage/blob/master/nfs/pkg/server/server.go
|
|
package nfs
|
|
|
|
import (
|
|
"fmt"
|
|
"os/exec"
|
|
"syscall"
|
|
)
|
|
|
|
const (
|
|
ganeshaLog = "/dev/stdout"
|
|
ganeshaOptions = "NIV_DEBUG"
|
|
)
|
|
|
|
// Setup sets up various prerequisites and settings for the server. If an error
|
|
// is encountered at any point it returns it instantly
|
|
func Setup(ganeshaConfig string) error {
|
|
// Start rpcbind if it is not started yet
|
|
cmd := exec.Command("rpcinfo", "127.0.0.1")
|
|
if err := cmd.Run(); err != nil {
|
|
cmd = exec.Command("rpcbind", "-w")
|
|
if out, err := cmd.CombinedOutput(); err != nil {
|
|
return fmt.Errorf("Starting rpcbind failed with error: %v, output: %s", err, out)
|
|
}
|
|
}
|
|
|
|
cmd = exec.Command("rpc.statd")
|
|
if out, err := cmd.CombinedOutput(); err != nil {
|
|
return fmt.Errorf("rpc.statd failed with error: %v, output: %s", err, out)
|
|
}
|
|
|
|
// Start dbus, needed for ganesha dynamic exports
|
|
cmd = exec.Command("dbus-daemon", "--system")
|
|
if out, err := cmd.CombinedOutput(); err != nil {
|
|
return fmt.Errorf("dbus-daemon failed with error: %v, output: %s", err, out)
|
|
}
|
|
|
|
err := setRlimitNOFILE()
|
|
if err != nil {
|
|
logger.Warningf("Error setting RLIMIT_NOFILE, there may be 'Too many open files' errors later: %v", err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Run : run the NFS server in the foreground until it exits
|
|
// Ideally, it should never exit when run in foreground mode
|
|
// We force foreground to allow the provisioner process to restart
|
|
// the server if it crashes - daemonization prevents us from using Wait()
|
|
// for this purpose
|
|
func Run(ganeshaConfig string) error {
|
|
// Start ganesha.nfsd
|
|
logger.Infof("Running NFS server!")
|
|
cmd := exec.Command("ganesha.nfsd", "-F", "-L", ganeshaLog, "-f", ganeshaConfig, "-N", ganeshaOptions)
|
|
if out, err := cmd.CombinedOutput(); err != nil {
|
|
return fmt.Errorf("ganesha.nfsd failed with error: %v, output: %s", err, out)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func setRlimitNOFILE() error {
|
|
var rlimit syscall.Rlimit
|
|
err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &rlimit)
|
|
if err != nil {
|
|
return fmt.Errorf("error getting RLIMIT_NOFILE: %v", err)
|
|
}
|
|
logger.Infof("starting RLIMIT_NOFILE rlimit.Cur %d, rlimit.Max %d", rlimit.Cur, rlimit.Max)
|
|
rlimit.Max = 1024 * 1024
|
|
rlimit.Cur = 1024 * 1024
|
|
err = syscall.Setrlimit(syscall.RLIMIT_NOFILE, &rlimit)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
err = syscall.Getrlimit(syscall.RLIMIT_NOFILE, &rlimit)
|
|
if err != nil {
|
|
return fmt.Errorf("error getting RLIMIT_NOFILE: %v", err)
|
|
}
|
|
logger.Infof("ending RLIMIT_NOFILE rlimit.Cur %d, rlimit.Max %d", rlimit.Cur, rlimit.Max)
|
|
return nil
|
|
}
|
|
|
|
// Stop stops the NFS server.
|
|
func Stop() {
|
|
// /bin/dbus-send --system --dest=org.ganesha.nfsd --type=method_call /org/ganesha/nfsd/admin org.ganesha.nfsd.admin.shutdown
|
|
}
|