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mirror of https://github.com/ceph/ceph-csi.git synced 2024-12-21 04:20:23 +00:00
ceph-csi/internal/cephfs/mounter/kernel.go
Madhu Rajanna 7b2aef0d81 util: add support for the nsenter
add support to run rbd map and mount -t
commands with the nsenter.

complete design of pod/multus network
is added here https://github.com/rook/rook/
blob/master/design/ceph/multus-network.md#csi-pods

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2022-04-08 10:23:21 +00:00

84 lines
2.1 KiB
Go

/*
Copyright 2021 The Ceph-CSI 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 mounter
import (
"context"
"fmt"
"github.com/ceph/ceph-csi/internal/cephfs/store"
"github.com/ceph/ceph-csi/internal/util"
)
const (
volumeMounterKernel = "kernel"
netDev = "_netdev"
)
type KernelMounter struct{}
func mountKernel(ctx context.Context, mountPoint string, cr *util.Credentials, volOptions *store.VolumeOptions) error {
if err := execCommandErr(ctx, "modprobe", "ceph"); err != nil {
return err
}
args := []string{
"-t", "ceph",
fmt.Sprintf("%s:%s", volOptions.Monitors, volOptions.RootPath),
mountPoint,
}
optionsStr := fmt.Sprintf("name=%s,secretfile=%s", cr.ID, cr.KeyFile)
mdsNamespace := ""
if volOptions.FsName != "" {
mdsNamespace = fmt.Sprintf("mds_namespace=%s", volOptions.FsName)
}
optionsStr = util.MountOptionsAdd(optionsStr, mdsNamespace, volOptions.KernelMountOptions, netDev)
args = append(args, "-o", optionsStr)
var (
stderr string
err error
)
if volOptions.NetNamespaceFilePath != "" {
_, stderr, err = util.ExecuteCommandWithNSEnter(ctx, volOptions.NetNamespaceFilePath, "mount", args[:]...)
} else {
_, stderr, err = util.ExecCommand(ctx, "mount", args[:]...)
}
if err != nil {
return fmt.Errorf("%w stderr: %s", err, stderr)
}
return err
}
func (m *KernelMounter) Mount(
ctx context.Context,
mountPoint string,
cr *util.Credentials,
volOptions *store.VolumeOptions) error {
if err := util.CreateMountPoint(mountPoint); err != nil {
return err
}
return mountKernel(ctx, mountPoint, cr, volOptions)
}
func (m *KernelMounter) Name() string { return "Ceph kernel client" }