Thick-provisioning was introduced to make accounting of assigned space
for volumes easier. When thick-provisioned volumes are the only consumer
of the Ceph cluster, this works fine. However, it is unlikely that this
is the case. Instead, accounting of the requested (thin-provisioned)
size of volumes is much more practical as different types of volumes can
be tracked.
OpenShift already provides cluster-wide quotas, which can combine
accounting of requested volumes by grouping different StorageClasses.
In addition to the difficult practise of allowing only thick-provisioned
RBD backed volumes, the performance makes thick-provisioning
troublesome. As volumes need to be completely allocated, data needs to
be written to the volume. This can take a long time, depending on the
size of the volume. Provisioning, cloning and snapshotting becomes very
much noticeable, and because of the additional time consumption, more
prone to failures.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
The command `vault monitor` can be used to stream logging from the Vault
service. This is very helpful while debugging Vault configuration
failures.
By adding a 2nd container to the Vault deployment, it is now possible to
get the messages from the Vault service by running
$ kubectl logs -c monitor <vault-pod-0123abcd>
This will be very useful when the e2e tests do not delete the deployment
after a failure and fetch the logs from all containers.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Currently, we delete the ceph client log file on unmap/detach.
This patch provides additional alternatives for users who would like to
persist the log files.
Strategies:
-----------
`remove`: delete log file on unmap/detach
`compress`: compress the log file to gzip on unmap/detach
`preserve`: preserve the log file in text format
Note that the default strategy will be remove on unmap, and these options
can be tweaked from the storage class
Compression size details example:
On Map: (with debug-rbd=20)
---------
$ ls -lh
-rw-r--r-- 1 root root 526K Sep 1 18:15
rbd-nbd-0001-0024-fed5480a-f00f-417a-a51d-31d8a8144c03-0000000000000003-d2e89c87-0b4d-11ec-8ea6-160f128e682d.log
On unmap:
---------
$ ls -lh
-rw-r--r-- 1 root root 33K Sep 1 18:15
rbd-nbd-0001-0024-fed5480a-f00f-417a-a51d-31d8a8144c03-0000000000000003-d2e89c87-0b4d-11ec-8ea6-160f128e682d.gz
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
cephLogDir: is a storage class option that is passed to rbd-nbd daemon.
cephLogDirHostPath: is a nodeplugin daemonset level option that helps in
using the right host-path while bind-mounting
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
added an example configmap for the
ceph.conf file. This allows the users to
specify different ceph configuration when
deploying cephcsi.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
- One logfile per device/volume
- Add ability to customize the logdir, default: /var/log/ceph
Note: if user customizes the hostpath to something else other than default
/var/log/ceph, then it is his responsibility to update the `cephLogDir`
in storageclass to reflect the same with daemon:
```
cephLogDir: "/var/log/mynewpath"
```
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
The kmsConfig type in the e2e suite has been enhanced with two functions
that make it possible to validate the destruction of deleted keys.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Hashicorp Vault does not completely remove the secrets in a kv-v2
backend when the keys are deleted. The metadata of the keys will be
kept, and it is possible to recover the contents of the keys afterwards.
With the new `vaultDestroyKeys` configuration parameter, this behaviour
can now be selected. By default the parameter will be set to `true`,
indicating that the keys and contents should completely be destroyed.
Setting it to any other value will make it possible to recover the
deleted keys.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
The new `vaultAuthNamespace` configuration parameter can be set to the
Vault Namespace where the authentication is setup in the service. Some
Hashicorp Vault deployments use sub-namespaces for their users/tenants,
with a 'root' namespace where the authentication is configured. This
requires passing of different Vault namespaces for different operations.
Example:
- the Kubernetes Auth mechanism is configured for in the Vault
Namespace called 'devops'
- a user/tenant has a sub-namespace called 'devops/website' where the
encryption passphrases can be placed in the key-value store
The configuration for this, then looks like:
vaultAuthNamespace: devops
vaultNamespace: devops/homepage
Note that Vault Namespaces are a feature of the Hashicorp Vault
Enterprise product, and not part of the Open Source version. This
prevents adding e2e tests that validate the Vault Namespace
configuration.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
registry.centos.org is not officially maintained by the CentOS
infrastructure team. The container images on quay.io are the official
once and we should use those instead.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
It seems that the version of the key/value engine can not always be
detected for Hashicorp Vault. In certain cases, it is required to
configure the `VAULT_BACKEND` (or `vaultBackend`) option so that a
successful connection to the service can be made.
The `kv-v2` is the current default for development deployments of
Hashicorp Vault (what we use for automated testing). Production
deployments default to version 1 for now.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
This change resolves a typo for installing the CSIDriver
resource in Kubernetes clusters before 1.18,
where the apiVersion is incorrect.
See also:
https://kubernetes-csi.github.io/docs/csi-driver-object.html
[ndevos: replace v1betav1 in examples with v1beta1]
Signed-off-by: Thomas Kooi <t.j.kooi@avisi.nl>
parseTenantConfig() only allowed configuring a defined set of options,
and KMSs were not able to re-use the implementation. Now, the function
parses the ConfigMap from the Tenants Namespace and returns a map with
options that the KMS supports.
The map that parseTenantConfig() returns can be inspected by the KMS,
and applied to the vaultTenantConnection type by calling parseConfig().
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Kubelet sometimes reports the following error:
failed to "StartContainer" for "vault-init-job" with CreateContainerConfigError: container has runAsNonRoot and image will run as root
Setting securityContext.runAsUser resolves this.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
The ServiceAccount "ceph-csi-vault-sa" is expected to be placed in the
Namespace "tenant" so that the provisioner and node-plugin fetch the
ServiceAccount from a Namespace where Ceph-CSI is not deployed.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
This commit adds e2e for user secret based metadata encryption,
adds user-secret.yaml and makes required changes in kms-connection-details,
kms-config yamls.
Signed-off-by: Rakshith R <rar@redhat.com>
The deployment of the Vault ConfigMap for the init-scripts job contains
a List with a single Item. This can be cleaned up to just be a ConfigMap
(without the list structure around it).
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Testing encrypted PVCs does not work anymore since Kubernetes v1.21. It
seems that disabling the iss validation in Hashicorp Vault is a
relatively simple workaround that we can use instead of the more complex
securing of the environment like should be done in production
deployments.
Updates: #1963
See-also: external-secrets/kubernetes-external-secrets#721
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Current rbd plugin only supports the layering feature
for rbd image. Add exclusive-lock and journaling image
features for the rbd.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
Signed-off-by: woohhan <woohyung_han@tmax.co.kr>
With v4.0.0 release of external-snapshotter, we are moving towards v1
from v1beta1 API version
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
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>
A tenant can place a ConfigMap in their Kubernetes Namespace with
configuration options that differ from the global (by the Storage Admin
set) values.
The ConfigMap needs to be located in the Tenants namespace, as described
in the documentation
See-also: docs/design/proposals/encryption-with-vault-tokens.md
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Deploying Vault still fails on occasion. It seems that the
imagePullPolicy has not been configured for the container yet.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
On occasion deploying Vault fails. It seems the vault-init-job batch job
does not use a full-qualified-image-name for the "vault" container.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Add "sys/mounts" so that VaultBackendKey does not need to be set. The
libopenstorage API detects the version for the key-value store in Vault
by reading "sys/mounts". Without permissions to read this endpoint, the
VaultBackendKey is required to be configured.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Docker Hub offers a way to pull official images without any project
prefix, like "docker.io/vault:latest". This does a redirect to the
images located under "docker.io/library".
By using the full qualified image name, a redirect gets removed while
pulling the images. This reduces the likelyhood of hittin Docker Hub
pull rate-limits.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Images that have an unqualified name (no explicit registry) come from
Docker Hub. This can be made explicit by adding docker.io as prefix. In
addition, the default :latest tag has been added too.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
The BlockVolume PVC tests consume the example files that refer to
"centos:latest" without registry. This means that the images will get
pulled from Docker Hub, which has rate limits preventing CI jobs from
pulling images.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
MD014 - Dollar signs used before commands without showing output
The dollar signs are unnecessary, it is easier to copy and paste and
less noisy if the dollar signs are omitted. Especially when the
command doesn't list the output, but if the command follows output
we can use `$ ` (dollar+space) mainly to differentiate between
command and its ouput.
scenario 1: when command doesn't follow output
```console
cd ~/work
```
scenario 2: when command follow output (use dollar+space)
```console
$ ls ~/work
file1 file2 dir1 dir2 ...
```
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
This patch with touch on the varuious other fields with in the storage class
yamls and label them with optional/required.
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
Obviously expecting a pool with name `rbd` or CephFS name `myfs`
will be a limitation, as the pool/fs is created by admin manually,
let them choose the name that suits their requirement and come back
edit it in the storage class.
Making the pool/fs name as required field will give more attention,
else with new users it will be mostly left unedited until one hit
the errors saying no pool/fs exists.
This patch clips-off the default pool/fs name and make it a mandatory
field.
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
The intention here is to keep the example YAMLs of CephFS
with recommended Access Mode of CephFS which is RWX instead of RWO.
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
Currently, the script does not deploy the driver singlehandedly;
As the vault creation needs to be done prior to that.
The script now includes the vault creation so that
one script can be sufficient to deploy the rbd driver.
Signed-off-by: Yug <yuggupta27@gmail.com>
