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feat(volstats): adding client side fs stats

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Signed-off-by: Pawan <pawan@mayadata.io>
This commit is contained in:
Pawan 2019-12-18 15:26:05 +05:30 • committed by Kiran Mova
parent 754755439b
commit 1e5c81d2ac
1 changed files with 35 additions and 7 deletions
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42
pkg/driver/agent.go
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@ -22,8 +22,9 @@ import (
apis "github.com/openebs/zfs-localpv/pkg/apis/openebs.io/core/v1alpha1"
"github.com/openebs/zfs-localpv/pkg/builder"
"github.com/openebs/zfs-localpv/pkg/mgmt"
zfs "github.com/openebs/zfs-localpv/pkg/zfs"
"github.com/openebs/zfs-localpv/pkg/zfs"
"golang.org/x/net/context"
"golang.org/x/sys/unix"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@ -201,7 +202,7 @@ func (ns *node) NodeGetCapabilities(
{
Type: &csi.NodeServiceCapability_Rpc{
Rpc: &csi.NodeServiceCapability_RPC{
Type: csi.NodeServiceCapability_RPC_UNKNOWN,
Type: csi.NodeServiceCapability_RPC_GET_VOLUME_STATS,
},
},
},
@ -252,19 +253,46 @@ func (ns *node) NodeExpandVolume(
req *csi.NodeExpandVolumeRequest,
) (*csi.NodeExpandVolumeResponse, error) {
return nil, nil
return nil, status.Error(codes.Unimplemented, "")
}
// NodeGetVolumeStats returns statistics for the
// given volume
//
// This implements csi.NodeServer
func (ns *node) NodeGetVolumeStats(
ctx context.Context,
in *csi.NodeGetVolumeStatsRequest,
req *csi.NodeGetVolumeStatsRequest,
) (*csi.NodeGetVolumeStatsResponse, error) {
return nil, status.Error(codes.Unimplemented, "")
volID := req.GetVolumeId()
path := req.GetVolumePath()
if len(volID) == 0 {
return nil, status.Error(codes.InvalidArgument, "volume id is not provided")
}
if len(path) == 0 {
return nil, status.Error(codes.InvalidArgument, "path is not provided")
}
var sfs unix.Statfs_t
if err := unix.Statfs(path, &sfs); err != nil {
return nil, status.Errorf(codes.Internal, "statfs on %s was failed: %v", path, err)
}
var usage []*csi.VolumeUsage
usage = append(usage, &csi.VolumeUsage{
Unit: csi.VolumeUsage_BYTES,
Total: int64(sfs.Blocks) * sfs.Bsize,
Used: int64(sfs.Blocks-sfs.Bfree) * sfs.Bsize,
Available: int64(sfs.Bavail) * sfs.Bsize,
})
usage = append(usage, &csi.VolumeUsage{
Unit: csi.VolumeUsage_INODES,
Total: int64(sfs.Files),
Used: int64(sfs.Files - sfs.Ffree),
Available: int64(sfs.Ffree),
})
return &csi.NodeGetVolumeStatsResponse{Usage: usage}, nil
}
func (ns *node) validateNodePublishReq(