func (p linux) bindMountDir(mountSource, mountPoint string) error {
bindMounter := boshdisk.NewLinuxBindMounter(p.diskManager.GetMounter())
mounted, err := bindMounter.IsMounted(mountPoint)
if !mounted && err == nil {
err = bindMounter.Mount(mountSource, mountPoint)
if err != nil {
return bosherr.WrapErrorf(err, "Bind mounting %s dir over %s", mountSource, mountPoint)
}
} else if err != nil {
return err
}
return bindMounter.RemountInPlace(mountPoint, "-o", "nodev", "-o", "noexec", "-o", "nosuid")
}
func (p linux) SetupHomeDir() error {
mounter := boshdisk.NewLinuxBindMounter(p.diskManager.GetMounter())
isMounted, err := mounter.IsMounted("/home")
if err != nil {
return bosherr.WrapError(err, "Setup home dir, checking if mounted")
}
if !isMounted {
err := mounter.Mount("/home", "/home")
if err != nil {
return bosherr.WrapError(err, "Setup home dir, mounting home")
}
err = mounter.RemountInPlace("/home", "-o", "nodev")
if err != nil {
return bosherr.WrapError(err, "Setup home dir, remount in place")
}
}
return nil
}
func (p linux) SetupTmpDir() error {
systemTmpDir := "/tmp"
boshTmpDir := p.dirProvider.TmpDir()
boshRootTmpPath := path.Join(p.dirProvider.DataDir(), "root_tmp")
err := p.fs.MkdirAll(boshTmpDir, tmpDirPermissions)
if err != nil {
return bosherr.WrapError(err, "Creating temp dir")
}
err = os.Setenv("TMPDIR", boshTmpDir)
if err != nil {
return bosherr.WrapError(err, "Setting TMPDIR")
}
err = p.changeTmpDirPermissions(systemTmpDir)
if err != nil {
return err
}
// /var/tmp is used for preserving temporary files between system reboots
_, _, _, err = p.cmdRunner.RunCommand("chmod", "0700", "/var/tmp")
if err != nil {
return bosherr.WrapError(err, "chmod /var/tmp")
}
if p.options.UseDefaultTmpDir {
return nil
}
_, _, _, err = p.cmdRunner.RunCommand("mkdir", "-p", boshRootTmpPath)
if err != nil {
return bosherr.WrapError(err, "Creating root tmp dir")
}
bindMounter := boshdisk.NewLinuxBindMounter(p.diskManager.GetMounter())
mounted, err := bindMounter.IsMounted(systemTmpDir)
if !mounted && err == nil {
// change permissions
_, _, _, err = p.cmdRunner.RunCommand("chmod", "0700", boshRootTmpPath)
if err != nil {
return bosherr.WrapError(err, "Chmoding root tmp dir")
}
// mount
err = bindMounter.Mount(boshRootTmpPath, systemTmpDir, "-o", "nodev", "-o", "noexec", "-o", "nosuid")
if err != nil {
return bosherr.WrapError(err, "Bind mounting root tmp dir over /tmp")
}
// change permissions for mount point
err = p.changeTmpDirPermissions(systemTmpDir)
if err != nil {
return err
}
} else if err != nil {
return err
}
return nil
}