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rbd: add support for thick provisioning option
Add an option to the StorageClass to support creating fully allocated (thick provisioned) RBD images Signed-off-by: Madhu Rajanna <madhupr007@gmail.com> Signed-off-by: Niels de Vos <ndevos@redhat.com>
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@ -63,6 +63,7 @@ make image-cephcsi
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| `mounter` | no | if set to `rbd-nbd`, use `rbd-nbd` on nodes that have `rbd-nbd` and `nbd` kernel modules to map rbd images |
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| `encrypted` | no | disabled by default, use `"true"` to enable LUKS encryption on PVC and `"false"` to disable it. **Do not change for existing storageclasses** |
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| `encryptionKMSID` | no | required if encryption is enabled and a kms is used to store passphrases |
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| `thickProvision` | no | if set to `"true"`, newly created RBD images will be completely allocated by writing zeros to it |
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**NOTE:** An accompanying CSI configuration file, needs to be provided to the
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running pods. Refer to [Creating CSI configuration](../examples/README.md#creating-csi-configuration)
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@ -29,6 +29,9 @@ parameters:
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# eg: pool: rbdpool
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pool: <rbd-pool-name>
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# Set thickProvision to true if you want RBD images to be fully allocated on
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# creation (thin provisioning is the default).
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thickProvision: "false"
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# (required) RBD image features, CSI creates image with image-format 2
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# CSI RBD currently supports only `layering` feature.
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imageFeatures: layering
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@ -19,6 +19,8 @@ package rbd
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import (
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"context"
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"errors"
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"fmt"
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"strconv"
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csicommon "github.com/ceph/ceph-csi/internal/csi-common"
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"github.com/ceph/ceph-csi/internal/journal"
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@ -116,6 +118,14 @@ func (cs *ControllerServer) parseVolCreateRequest(ctx context.Context, req *csi.
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return nil, status.Error(codes.InvalidArgument, err.Error())
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}
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tp := "thickProvision"
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thick := req.GetParameters()[tp]
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if thick != "" {
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if rbdVol.ThickProvision, err = strconv.ParseBool(thick); err != nil {
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return nil, fmt.Errorf("failed to parse %q: %w", tp, err)
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}
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}
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rbdVol.RequestName = req.GetName()
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// Volume Size - Default is 1 GiB
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@ -98,6 +98,7 @@ type rbdVolume struct {
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Encrypted bool
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readOnly bool
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Primary bool
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ThickProvision bool
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KMS util.EncryptionKMS
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// Owner is the creator (tenant, Kubernetes Namespace) of the volume.
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Owner string
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