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Rekey disks for encrypted VMs
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This patch supports rekeying disks when an encrypted VM is rekeyed.
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akutz committed Oct 24, 2024
1 parent 38b38ba commit fe208c5
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Showing 19 changed files with 715 additions and 87 deletions.
21 changes: 21 additions & 0 deletions api/v1alpha3/virtualmachine_storage_types.go
Original file line number Diff line number Diff line change
Expand Up @@ -84,6 +84,22 @@ const (
VirtualMachineStorageDiskTypeManaged VirtualMachineVolumeType = "Managed"
)

type VirtualMachineVolumeCryptoStatus struct {
// +optional

// ProviderID describes the provider ID used to encrypt the volume.
// Please note, this field will be empty if the volume is not
// encrypted.
ProviderID string `json:"providerID,omitempty"`

// +optional

// KeyID describes the key ID used to encrypt the volume.
// Please note, this field will be empty if the volume is not
// encrypted.
KeyID string `json:"keyID,omitempty"`
}

// VirtualMachineVolumeStatus defines the observed state of a
// VirtualMachineVolume instance.
type VirtualMachineVolumeStatus struct {
Expand All @@ -97,6 +113,11 @@ type VirtualMachineVolumeStatus struct {

// +optional

// Crypto describes the volume's encryption status.
Crypto *VirtualMachineVolumeCryptoStatus `json:"crypto,omitempty"`

// +optional

// Limit describes the storage limit for the volume.
Limit *resource.Quantity `json:"limit,omitempty"`

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8 changes: 3 additions & 5 deletions api/v1alpha3/virtualmachine_types.go
Original file line number Diff line number Diff line change
Expand Up @@ -745,11 +745,9 @@ type VirtualMachineCryptoStatus struct {
//
// - Config -- This refers to all of the files related to a VM except any
// virtual disks.
// - Disk -- This refers to all of the VM's virtual disks that are *not*
// PVCs.
//
// To determine whether or not a PVC is encrypted, please refer to the PVC
// resource.
// - Disks -- This refers to at least one of the VM's attached disks. To
// determine the encryption state of the individual disks,
// please refer to status.volumes[].crypto.
Encrypted []VirtualMachineEncryptionType `json:"encrypted,omitempty"`

// +optional
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20 changes: 20 additions & 0 deletions api/v1alpha3/zz_generated.deepcopy.go

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24 changes: 19 additions & 5 deletions config/crd/bases/vmoperator.vmware.com_virtualmachines.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -4688,11 +4688,9 @@ spec:
- Config -- This refers to all of the files related to a VM except any
virtual disks.
- Disk -- This refers to all of the VM's virtual disks that are *not*
PVCs.
To determine whether or not a PVC is encrypted, please refer to the PVC
resource.
- Disks -- This refers to at least one of the VM's attached disks. To
determine the encryption state of the individual disks,
please refer to status.volumes[].crypto.
items:
type: string
type: array
Expand Down Expand Up @@ -5403,6 +5401,22 @@ spec:
Attached represents whether a volume has been successfully attached to
the VirtualMachine or not.
type: boolean
crypto:
description: Crypto describes the volume's encryption status.
properties:
keyID:
description: |-
KeyID describes the key ID used to encrypt the volume.
Please note, this field will be empty if the volume is not
encrypted.
type: string
providerID:
description: |-
ProviderID describes the provider ID used to encrypt the volume.
Please note, this field will be empty if the volume is not
encrypted.
type: string
type: object
diskUUID:
description: |-
DiskUUID represents the underlying virtual disk UUID and is present when
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4 changes: 2 additions & 2 deletions controllers/storageclass/storageclass_controller_intg_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -59,7 +59,7 @@ func intgTestsReconcile() {
})
It("should eventually mark the storage class as encrypted in the context", func() {
Eventually(func(g Gomega) {
ok, err := kubeutil.IsEncryptedStorageClass(ctx, ctx.Client, obj.Name)
ok, _, err := kubeutil.IsEncryptedStorageClass(ctx, ctx.Client, obj.Name)
Expect(err).ToNot(HaveOccurred())
Expect(ok).To(BeTrue())
})
Expand All @@ -69,7 +69,7 @@ func intgTestsReconcile() {
Context("reconciling a plain storage class", func() {
It("should never mark the storage class as encrypted in the context", func() {
Consistently(func(g Gomega) {
ok, err := kubeutil.IsEncryptedStorageClass(ctx, ctx.Client, obj.Name)
ok, _, err := kubeutil.IsEncryptedStorageClass(ctx, ctx.Client, obj.Name)
Expect(err).ToNot(HaveOccurred())
Expect(ok).To(BeFalse())
})
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4 changes: 2 additions & 2 deletions controllers/storageclass/storageclass_controller_unit_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -123,7 +123,7 @@ func unitTestsReconcile() {
})
It("marks item as encrypted and returns success", func() {
Expect(err).ToNot(HaveOccurred())
ok, err := kubeutil.IsEncryptedStorageClass(ctx, ctx.Client, obj.Name)
ok, _, err := kubeutil.IsEncryptedStorageClass(ctx, ctx.Client, obj.Name)
Expect(err).ToNot(HaveOccurred())
Expect(ok).To(BeFalse())
})
Expand All @@ -136,7 +136,7 @@ func unitTestsReconcile() {
})
It("marks item as encrypted and returns success", func() {
Expect(err).ToNot(HaveOccurred())
ok, err := kubeutil.IsEncryptedStorageClass(ctx, ctx.Client, obj.Name)
ok, _, err := kubeutil.IsEncryptedStorageClass(ctx, ctx.Client, obj.Name)
Expect(err).ToNot(HaveOccurred())
Expect(ok).To(BeTrue())
})
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4 changes: 2 additions & 2 deletions docs/concepts/workloads/vm.md
Original file line number Diff line number Diff line change
Expand Up @@ -476,14 +476,14 @@ The field `spec.crypto` may be used in conjunction with a VM's storage class and

#### Encryption type

The type of encryption depends on the storage class and hardware present in the VM as the chart below illustrates:
The type of encryption used by the VM is reported in the list `status.crypto.encrypted`. The list may contain the values `Config` and/or `Disks`, depending on the storage class and hardware present in the VM as the chart below illustrates:

| | Config | Disks |
|--------------------------|:------:|:-----:|
| Encryption storage class | ✓ | ✓ |
| vTPM | ✓ | |

The `Config` type refers to all files related to a VM except for virtual disks. The `Disks` type refers to a VM's virtual disks except for PVCs. To ascertain the encryption status of a PVC, please refer directly to the PVC resource.
The `Config` type refers to all files related to a VM except for virtual disks. The `Disks` type indicates at least one of a VM's virtual disks is encrypted. To determine which of the VM's disks are encrypted, please refer to `status.volumes[].crypto`.

#### Default Key Provider

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2 changes: 1 addition & 1 deletion go.mod
Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@ require (
github.com/vmware-tanzu/vm-operator/external/tanzu-topology v0.0.0-00010101000000-000000000000
github.com/vmware-tanzu/vm-operator/pkg/backup/api v0.0.0-00010101000000-000000000000
github.com/vmware-tanzu/vm-operator/pkg/constants/testlabels v0.0.0-00010101000000-000000000000
github.com/vmware/govmomi v0.31.1-0.20241015181712-cd4331eda367
github.com/vmware/govmomi v0.31.1-0.20241024144701-6df52891f229
golang.org/x/exp v0.0.0-20230515195305-f3d0a9c9a5cc
// * https://github.com/vmware-tanzu/vm-operator/security/dependabot/24
golang.org/x/text v0.19.0
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4 changes: 2 additions & 2 deletions go.sum
Original file line number Diff line number Diff line change
Expand Up @@ -459,8 +459,8 @@ github.com/vmware-tanzu/net-operator-api v0.0.0-20240523152550-862e2c4eb0e0 h1:y
github.com/vmware-tanzu/net-operator-api v0.0.0-20240523152550-862e2c4eb0e0/go.mod h1:w6QJGm3crIA16ZIz1FVQXD2NVeJhOgGXxW05RbVTSTo=
github.com/vmware-tanzu/nsx-operator/pkg/apis v0.0.0-20240902045731-00a14868c72d h1:6pMXrQmTYpu5FipoQ9fT4FJG3VPMMbBoIi6h3KvdQc8=
github.com/vmware-tanzu/nsx-operator/pkg/apis v0.0.0-20240902045731-00a14868c72d/go.mod h1:Q4JzNkNMvjo7pXtlB5/R3oME4Nhah7fAObWgghVmtxk=
github.com/vmware/govmomi v0.31.1-0.20241015181712-cd4331eda367 h1:4gP1VC+N9onypUJh52dSrAKsnpyhQLHc/g3tH9qd4vM=
github.com/vmware/govmomi v0.31.1-0.20241015181712-cd4331eda367/go.mod h1:uoLVU9zlXC4p4GmLVG+ZJmBC0Gn3Q7mytOJvi39OhxA=
github.com/vmware/govmomi v0.31.1-0.20241024144701-6df52891f229 h1:XopiNtNFPXBeamYFQRQBQsv2kYYhwYGNYdhbEuoaHxQ=
github.com/vmware/govmomi v0.31.1-0.20241024144701-6df52891f229/go.mod h1:uoLVU9zlXC4p4GmLVG+ZJmBC0Gn3Q7mytOJvi39OhxA=
github.com/x448/float16 v0.8.4 h1:qLwI1I70+NjRFUR3zs1JPUCgaCXSh3SW62uAKT1mSBM=
github.com/x448/float16 v0.8.4/go.mod h1:14CWIYCyZA/cWjXOioeEpHeN/83MdbZDRQHoFcYsOfg=
github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
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31 changes: 21 additions & 10 deletions pkg/providers/vsphere/vmlifecycle/update_status.go
Original file line number Diff line number Diff line change
Expand Up @@ -827,21 +827,32 @@ func updateVolumeStatus(vm *vmopv1.VirtualMachine, moVM mo.VirtualMachine) {
// existing status with the usage information.
di, _ := vmdk.GetVirtualDiskInfoByUUID(ctx, nil, moVM, false, diskUUID)
vm.Status.Volumes[diskIndex].Used = BytesToResourceGiB(di.UniqueSize)
if di.CryptoKey.ProviderID != "" || di.CryptoKey.KeyID != "" {
vm.Status.Volumes[diskIndex].Crypto = &vmopv1.VirtualMachineVolumeCryptoStatus{
ProviderID: di.CryptoKey.ProviderID,
KeyID: di.CryptoKey.KeyID,
}
}
} else if !isFCD {
// The disk is a classic, non-FCD that must be added to the list of
// volume statuses.
di, _ := vmdk.GetVirtualDiskInfoByUUID(ctx, nil, moVM, false, diskUUID)
dp := diskPath.Path
vm.Status.Volumes = append(
vm.Status.Volumes,
vmopv1.VirtualMachineVolumeStatus{
Name: strings.TrimSuffix(path.Base(dp), path.Ext(dp)),
Type: vmopv1.VirtualMachineStorageDiskTypeClassic,
Attached: true,
DiskUUID: diskUUID,
Limit: BytesToResourceGiB(di.CapacityInBytes),
Used: BytesToResourceGiB(di.UniqueSize),
})
volStatus := vmopv1.VirtualMachineVolumeStatus{
Name: strings.TrimSuffix(path.Base(dp), path.Ext(dp)),
Type: vmopv1.VirtualMachineStorageDiskTypeClassic,
Attached: true,
DiskUUID: diskUUID,
Limit: BytesToResourceGiB(di.CapacityInBytes),
Used: BytesToResourceGiB(di.UniqueSize),
}
if di.CryptoKey.ProviderID != "" || di.CryptoKey.KeyID != "" {
volStatus.Crypto = &vmopv1.VirtualMachineVolumeCryptoStatus{
ProviderID: di.CryptoKey.ProviderID,
KeyID: di.CryptoKey.KeyID,
}
}
vm.Status.Volumes = append(vm.Status.Volumes, volStatus)
}
}

Expand Down
24 changes: 24 additions & 0 deletions pkg/providers/vsphere/vmlifecycle/update_status_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -547,6 +547,12 @@ var _ = Describe("UpdateStatus", func() {
FileName: "[datastore] vm/my-disk-100.vmdk",
},
Uuid: "100",
KeyId: &vimtypes.CryptoKeyId{
KeyId: "my-key-id",
ProviderId: &vimtypes.KeyProviderId{
Id: "my-provider-id",
},
},
},
Key: 100,
},
Expand Down Expand Up @@ -610,6 +616,12 @@ var _ = Describe("UpdateStatus", func() {
FileName: "[datastore] vm/my-disk-105.vmdk",
},
Uuid: "105",
KeyId: &vimtypes.CryptoKeyId{
KeyId: "my-key-id",
ProviderId: &vimtypes.KeyProviderId{
Id: "my-provider-id",
},
},
},
Key: 105,
},
Expand Down Expand Up @@ -788,6 +800,10 @@ var _ = Describe("UpdateStatus", func() {
Name: "my-disk-100",
DiskUUID: "100",
Type: vmopv1.VirtualMachineStorageDiskTypeClassic,
Crypto: &vmopv1.VirtualMachineVolumeCryptoStatus{
KeyID: "my-key-id",
ProviderID: "my-provider-id",
},
Attached: true,
Limit: vmlifecycle.BytesToResourceGiB(10 * oneGiBInBytes),
Used: vmlifecycle.BytesToResourceGiB(500 + (1 * oneGiBInBytes)),
Expand Down Expand Up @@ -846,6 +862,10 @@ var _ = Describe("UpdateStatus", func() {
Name: "my-disk-100",
DiskUUID: "100",
Type: vmopv1.VirtualMachineStorageDiskTypeClassic,
Crypto: &vmopv1.VirtualMachineVolumeCryptoStatus{
KeyID: "my-key-id",
ProviderID: "my-provider-id",
},
Attached: true,
Limit: vmlifecycle.BytesToResourceGiB(10 * oneGiBInBytes),
Used: vmlifecycle.BytesToResourceGiB(500 + (1 * oneGiBInBytes)),
Expand Down Expand Up @@ -886,6 +906,10 @@ var _ = Describe("UpdateStatus", func() {
Name: "my-disk-105",
DiskUUID: "105",
Type: vmopv1.VirtualMachineStorageDiskTypeManaged,
Crypto: &vmopv1.VirtualMachineVolumeCryptoStatus{
KeyID: "my-key-id",
ProviderID: "my-provider-id",
},
Attached: false,
Limit: vmlifecycle.BytesToResourceGiB(100 * oneGiBInBytes),
Used: vmlifecycle.BytesToResourceGiB(500 + (50 * oneGiBInBytes)),
Expand Down
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