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ceph-csi/internal/util/validate.go

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package util
import (
"github.com/container-storage-interface/spec/lib/go/csi"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
// ValidateNodeStageVolumeRequest validates the node stage request.
func ValidateNodeStageVolumeRequest(req *csi.NodeStageVolumeRequest) error {
if req.GetVolumeCapability() == nil {
return status.Error(codes.InvalidArgument, "volume capability missing in request")
}
if req.GetVolumeId() == "" {
return status.Error(codes.InvalidArgument, "volume ID missing in request")
}
if req.GetStagingTargetPath() == "" {
return status.Error(codes.InvalidArgument, "staging target path missing in request")
}
if req.GetSecrets() == nil || len(req.GetSecrets()) == 0 {
return status.Error(codes.InvalidArgument, "stage secrets cannot be nil or empty")
}
// validate stagingpath exists
ok := checkDirExists(req.GetStagingTargetPath())
if !ok {
return status.Errorf(
codes.InvalidArgument,
"staging path %s does not exist on node",
req.GetStagingTargetPath())
}
return nil
}
// ValidateNodeUnstageVolumeRequest validates the node unstage request.
func ValidateNodeUnstageVolumeRequest(req *csi.NodeUnstageVolumeRequest) error {
if req.GetVolumeId() == "" {
return status.Error(codes.InvalidArgument, "volume ID missing in request")
}
if req.GetStagingTargetPath() == "" {
return status.Error(codes.InvalidArgument, "staging target path missing in request")
}
return nil
}
// ValidateNodePublishVolumeRequest validates the node publish request.
func ValidateNodePublishVolumeRequest(req *csi.NodePublishVolumeRequest) error {
if req.GetVolumeCapability() == nil {
return status.Error(codes.InvalidArgument, "volume capability missing in request")
}
if req.GetVolumeId() == "" {
return status.Error(codes.InvalidArgument, "volume ID missing in request")
}
if req.GetTargetPath() == "" {
return status.Error(codes.InvalidArgument, "target path missing in request")
}
if req.GetStagingTargetPath() == "" {
return status.Error(codes.InvalidArgument, "staging target path missing in request")
}
return nil
}
// ValidateNodeUnpublishVolumeRequest validates the node unpublish request.
func ValidateNodeUnpublishVolumeRequest(req *csi.NodeUnpublishVolumeRequest) error {
if req.GetVolumeId() == "" {
return status.Error(codes.InvalidArgument, "volume ID missing in request")
}
if req.GetTargetPath() == "" {
return status.Error(codes.InvalidArgument, "target path missing in request")
}
return nil
}
// CheckReadOnlyManyIsSupported checks the request is to create ReadOnlyMany
// volume is from source as empty ReadOnlyMany is not supported.
func CheckReadOnlyManyIsSupported(req *csi.CreateVolumeRequest) error {
for _, capability := range req.GetVolumeCapabilities() {
if m := capability.GetAccessMode().Mode; m == csi.VolumeCapability_AccessMode_MULTI_NODE_READER_ONLY ||
m == csi.VolumeCapability_AccessMode_SINGLE_NODE_READER_ONLY {
if req.GetVolumeContentSource() == nil {
return status.Error(codes.InvalidArgument, "readOnly accessMode is supported only with content source")
}
}
}
return nil
}