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util: add support for the nsenter

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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>
This commit is contained in:
Madhu Rajanna
2022-03-31 18:59:33 +05:30
committed by mergify[bot]
parent 6333c4b1e6
commit 7b2aef0d81
16 changed files with 211 additions and 5 deletions
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12
internal/cephfs/mounter/fuse.go
View File

@ -65,12 +65,20 @@ func mountFuse(ctx context.Context, mountPoint string, cr *util.Credentials, vol
if volOptions.FsName != "" {
args = append(args, "--client_mds_namespace="+volOptions.FsName)
}
var (
stderr string
err error
)
if volOptions.NetNamespaceFilePath != "" {
_, stderr, err = util.ExecuteCommandWithNSEnter(ctx, volOptions.NetNamespaceFilePath, "ceph-fuse", args[:]...)
} else {
_, stderr, err = util.ExecCommand(ctx, "ceph-fuse", args[:]...)
}
_, stderr, err := util.ExecCommand(ctx, "ceph-fuse", args[:]...)
if err != nil {
return fmt.Errorf("%w stderr: %s", err, stderr)
}
// Parse the output:
// We need "starting fuse" meaning the mount is ok
// and PID of the ceph-fuse daemon for unmount

11
internal/cephfs/mounter/kernel.go
View File

@ -51,7 +51,16 @@ func mountKernel(ctx context.Context, mountPoint string, cr *util.Credentials, v
args = append(args, "-o", optionsStr)
_, stderr, err := util.ExecCommand(ctx, "mount", args[:]...)
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)
}

5
internal/cephfs/nodeserver.go
View File

@ -126,6 +126,11 @@ func (ns *NodeServer) NodeStageVolume(
}
defer volOptions.Destroy()
volOptions.NetNamespaceFilePath, err = util.GetNetNamespaceFilePath(util.CsiConfigFile, volOptions.ClusterID)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
mnt, err := mounter.New(volOptions)
if err != nil {
log.ErrorLog(ctx, "failed to create mounter for volume %s: %v", volID, err)

2
internal/cephfs/store/volumeoptions.go
View File

@ -50,6 +50,8 @@ type VolumeOptions struct {
ProvisionVolume bool `json:"provisionVolume"`
KernelMountOptions string `json:"kernelMountOptions"`
FuseMountOptions string `json:"fuseMountOptions"`
// Network namespace file path to execute nsenter command
NetNamespaceFilePath string
// conn is a connection to the Ceph cluster obtained from a ConnPool
conn *util.ClusterConnection