mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-18 11:00:25 +00:00
e1cbd90c0b
File name is corrected and also a typo in the same Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
75 lines
2.9 KiB
Markdown
75 lines
2.9 KiB
Markdown
# Encrypted volumes with IBM HPCS or Key Protect
|
|
|
|
IBM Cloud™ Hyper Protect Crypto Services is a key management and cloud hardware
|
|
security module (HSM). It is designed to enable a user to take control of their
|
|
cloud data encryption keys and cloud hardware security models. To support this
|
|
KMS integration in Ceph CSI and thus enable the HPCS users to make use of the
|
|
same in volume encrypted operations, below things are considered.
|
|
|
|
## Connection to IBM HPCS/Key Protect service
|
|
|
|
Below parameters/values can be used to establish the connection to the HPCS
|
|
service from the CSI driver and to make use of the encryption operations:
|
|
|
|
```text
|
|
* IBM_KP_BASE_URL
|
|
The Key Protect/HPCS connection URL.
|
|
|
|
* IBM_KP_TOKEN_URL
|
|
The Token Authentication URL of KeyProtect/HPCS service.
|
|
|
|
* KMS_SERVICE_NAME
|
|
A unique name for the key management service within the project.
|
|
|
|
* IBM_KP_SERVICE_INSTANCE_ID
|
|
The Instance ID of the IBM HPCS service, ex: crn:v1:bluemix:public:hs-crypto:us-south:a/5d19cf8b82874c2dab37e397426fbc42:e2ae65ff-954b-453f-b0d7-fc5064c203ce::
|
|
|
|
* IBM_KP_SERVICE_API_KEY
|
|
Ex: 06x6DbTkVQ-qCRmq9cK-p9xOQpU2UwJMcdjnIDdr0g2R
|
|
|
|
* IBM_KP_CUSTOMER_ROOT_KEY
|
|
Ex: c7a9aa91-5cb5-48da-a821-e85c27b99d92
|
|
|
|
* IBM_KP_REGION
|
|
Region of the Key Protect service, ex: us-south-2
|
|
```
|
|
|
|
### Values provided in the connection Secret
|
|
|
|
Considering `SERVICE_API_KEY` and `CUSTOMER_ROOT_KEY` are sensitive information,
|
|
those will be provided as a Kubernetes Secret to the CSI driver. The Ceph CSI
|
|
KMS plugin interface for the Key Protect will read the Secret name from the kms
|
|
ConfigMap and fetch these values. `SESSION_TOKEN and CRK_ARN` values can also be
|
|
provided by the user as part of the Secret if needed. How-ever these values are
|
|
considered to be optional.
|
|
|
|
### Values provided in the config map
|
|
|
|
`SERVICE_INSTANCE_ID` is part of the KMS ConfigMap and there could be an
|
|
optional value provided in the ConfigMap for `REGION` too.
|
|
|
|
### Storage class values or configuration
|
|
|
|
As like other KMS enablement, the Storage class has to be enabled for encryption
|
|
and `encryptionKMSID` has to be provided which is the matching value in the kms
|
|
config map to `KMS_SERVICE_NAME`.
|
|
|
|
## Volume Encrypt or Decrypt Operation
|
|
|
|
The IBM Key Protect server's `wrap` and `unwrap` functionalities will be used by
|
|
the Ceph CSI driver to achieve encryption and decryption of volumes. The DEK can
|
|
be wrapped with the help of Customer Root Key (CRK) and can be used for LUKS
|
|
operation. The wrapped cipher blob will be stored inside the image metadata ( as
|
|
in other KMS integration, ex: AWS). At time of decrypt the DEK will be unwrapped
|
|
with the help of cipher blob and Key Protect server
|
|
|
|
## Integration APIS
|
|
|
|
[Key Protect Go Client](https://github.com/IBM/keyprotect-go-client) provide the
|
|
client SDK to interact with the Key Protect server and perform Key Protect
|
|
operations.
|
|
|
|
## Additional Reference
|
|
|
|
[Key Protect Doc](https://cloud.ibm.com/docs/key-protect)
|