if the kms encryption configmap is not mounted
as a volume to the CSI pods, add the code to
read the configuration from the kubernetes. Later
the code to fetch the configmap will be moved to
the new sidecar which is will talk to respective
CO to fetch the encryption configurations.
The k8s configmap uses the standard vault spefic
names to add the configurations. this will be converted
back to the CSI configurations.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.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>
Added a option to pass the client certificate
and the client certificate key for the vault token
based encryption.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
Tenants (Kubernetes Namespaces) can use their own Vault Token to manage
the encryption keys for PVCs. The working is documented in #1743.
See-also: #1743Closes: #1500
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Add a new method to the EncryptionKMS interface so that resources can be
freed when EncryptionKMS instances get freed.
With the move to using the libopenstorage API, a temporary file needs to
store the optional CA certificate. The Destroy() method of the
vaultConnection type now removes this file.
The rbdVolume uses the EncryptionKMS type now, so call the new Destroy()
method from withing rbdVolume.Destroy().
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Make it possible to calle initConnection() multiple times. This enables
the VaultTokensKMS type to override global settings with options from a
per-tenant configuration.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
This makes it possible to pass a more complex configuration to the
initialize functions for KMS's. The upcoming VaultTokensKMS can use
overrides for configiration options on a per tenant basis. Without this
change, it would not be possible to consume the JSON configuration file.
See-also: #1743
Signed-off-by: Niels de Vos <ndevos@redhat.com>
In order to re-use the configuration of Vault, split a new
vaultConnection type from the VaultKMS type.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Instead of the hand-rolled Vault usage, use the libopenstorage/secrets
package that provides a nice API. The support for Vault becomes much
simpler and maintainable that way.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
An rbd image can have a maximum number of
snapshots defined by maxsnapshotsonimage
On the limit is reached the cephcsi will
start flattening the older snapshots and
returns the ABORT error message, The Request
comes after this as to wait till all the
images are flattened (this will increase the
PVC creation time. Instead of waiting till
the maximum snapshots on an RBD image, we can
have a soft limit, once the limit reached
cephcsi will start flattening the task to
break the chain. With this PVC creation time
will only be affected when the hard limit
(minsnapshotsonimage) reached.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
We have below exported function in credentials.go which is not
called from anywhere in the repo. Removing it for the same reason.
```
// NewCredentials generates new credentials when id and key
// are provided.
func NewCredentials(id, key string) (*Credentials, error) {
...
```
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
`cap` builtin function returns the capacity of a type. Its not
good practice to use this builtin function for other variable
names, removing it here
Ref# https://golang.org/pkg/builtin/#cap
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
The go-ceph CephFS Admin API needs a rados.Conn to connect the Admin
interface to the Ceph cluster. As the rados.Conn is internal to the
ClusterConnection type, add GetFSAdmin() to create a new FSAdmin
instance for a specific connection.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
rename FatalLog to FatalLogMsg to keep functions
in parity functions ends with Msg if its only message
logging.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
as we have 2 functions for logging. one for logging
with message and another one is for logging with
context. renamed ErrorLog to ErrorLogMsg to log
with messages.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
Make sure to operate within the namespace if any given
when dealing with rbd images and snapshots and their journals.
Signed-off-by: Mehdy Khoshnoody <mehdy.khoshnoody@gmail.com>
Most consumers of util.ExecCommand() need to convert the returned []byte
format of stdout and/or stderr to string. By having util.ExecCommand()
return strings instead, the code gets a little simpler.
A few commands return JSON that needs to be parsed. These commands will
be replaced by go-ceph implementations later on. For now, convert the
strings back to []byte when needed.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
All calls to util.ExecCommand() now pass the context.Context. In some
cases this is not possible or needed, and util.ExecCommand() will not
log the command.
This should make debugging easier when command executions fail.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
The sentinel error code had additional fields in the errors, that are
used nowhere. This leads to unneccesarily complicated code. This
change replaces the sentinel errors in utils with standard errors
created with errors.New() and adds a simple JoinErrors() function to
be able to combine sentinel errors from different code tiers.
Related: #1203
Signed-off-by: Sven Anderson <sven@redhat.com>
As we are adding new functionalities like Create/Delete
snapshot,Clone from Snapshot and Clone from Volume.
with the current implementation, there are only serial
operations allowed for this functionalities, for some
function we can allow parallel operations like
Clone from snapshot and Clone from Volume and Create
`N` snapshots on a single volume.
Delete Volume: Need to ensure that there is no clone,
Snapshot create and Expand volume in progress.
Expand Volume: Need to ensure that there is no clone,
snapshot create and cloning in progress
Delete Snapshot: Need to ensure that there is no
cloning in progress
Restore Volume/Snapshot: Need to ensure that there is
no Expand or delete operation in progress.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
Direct usage of numbers should be avoided.
Issue reported:
mnd: Magic number: X, in <argument> detected (gomnd)
Signed-off-by: Yug <yuggupta27@gmail.com>
Add explanation to nolint directives.
Issue reported:
whyNoLint: include an explanation for nolint directive (gocritic)
Signed-off-by: Yug <yuggupta27@gmail.com>
as v1.0.0 is deprecated we need to remove the support
for it in the Next coming (v3.0.0) release. This PR
removes the support for the same.
closes#882
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
updated unit testing for the kernel check
for deep flatten feature for both supported
upstream kernel version (5.1.0+) and RHEL
8.2 backport
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
Added maxsnapshotsonimage flag to flatten
the older rbd images on the chain to avoid
issue in krbd.The limit is in krbd since it
only allocate 1 4KiB page to handle all the
snapshot ids for an image.
The max limit is 510 as per
https://github.com/torvalds/linux/blob/
aaa2faab4ed8e5fe0111e04d6e168c028fe2987f/drivers/block/rbd.c#L98
in cephcsi we arekeeping the default to 450 to reserve 10%
to avoid issues.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
Several places in the code compared errors directly with the go-ceph
sentinel errors. This change uses the errors.Is() function of go
1.13 instead. The err113 linter reported this issue as:
err113: do not compare errors directly, use errors.Is() instead
Signed-off-by: Sven Anderson <sven@redhat.com>
"github.com/pkg/errors" does not offer more functionlity than that we
need from the standard "errors" package. With Golang v1.13 errors can be
wrapped with `fmt.Errorf("... %w", err)`. `errors.Is()` and
`errors.As()` are available as well.
See-also: https://tip.golang.org/doc/go1.13#error_wrapping
Signed-off-by: Niels de Vos <ndevos@redhat.com>
added skipForceFlatten flag to skip
the image deptha and skip image flattening.
This will be very useful if the kernel is
not listed in cephcsi which supports deep
flatten fauture.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
added Hardlimit and Softlimit flags for cephcsi
arguments. When the Softlimit is reached cephcsi
will start a background task to flatten the rbd
image and return success and if the hardlimit
is reached it will start a background task
to flatten the rbd image and return ready
to use as false to make sure that the image
will not be used until it is flatten.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
as we need to reuse the same code for both cephfs
and rbd moving the supported version check function
to util package, for better readability renamed
the function.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
A new version of gosec insists on handling errors returned by Close():
[/go/src/github.com/ceph/ceph-csi/internal/util/pidlimit.go:44] - G307 (CWE-): Deferring unsafe method "*os.File" on type "Close" (Confidence: HIGH, Severity: MEDIUM)
> defer cgroup.Close()
[/go/src/github.com/ceph/ceph-csi/internal/util/pidlimit.go:78] - G307 (CWE-): Deferring unsafe method "*os.File" on type "Close" (Confidence: HIGH, Severity: MEDIUM)
> defer f.Close()
[/go/src/github.com/ceph/ceph-csi/internal/util/pidlimit.go:113] - G307 (CWE-): Deferring unsafe method "*os.File" on type "Close" (Confidence: HIGH, Severity: MEDIUM)
> defer f.Close()
Signed-off-by: Niels de Vos <ndevos@redhat.com>
The generated ceph.conf does not need readable by the group, there is
only one (system) user consuming the configurations file.
This addresses the following gosec warning:
[/go/src/github.com/ceph/ceph-csi/internal/util/cephconf.go:52] - G306 (CWE-): Expect WriteFile permissions to be 0600 or less (Confidence: HIGH, Severity: MEDIUM)
> ioutil.WriteFile(CephConfigPath, cephConfig, 0640)
Signed-off-by: Niels de Vos <ndevos@redhat.com>
gosec-2.3.0 complains about the following:
[/go/src/github.com/ceph/ceph-csi/internal/util/cephcmds.go:146] - G307 (CWE-): Deferring unsafe method "*os.File" on type "Close" (Confidence: HIGH, Severity: MEDIUM)
> defer tmpFile.Close()
By logging the error from Close(), the warning is gone.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
These types have private fields but we need to construct them outside of
the util package. Add New* methods for both.
Signed-off-by: John Mulligan <jmulligan@redhat.com>
It seems that convering the release component from the unix.Utsrelease
type leaves some trailing "\x00" characters.
While splitting the string to compare kernel versions, these additional
characters might prevent converting the string to an int. Strip the
additional characters before returning the string.
Note:
"\x00" characters are not visible when printing to a file or screen.
They can be seen in hex-editors, or sending the output through 'xxd'.
Fixes: #1167
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Go 1.13 contains support for error wrapping. To support wrapping,
fmt.Errorf now has a %w verb for creating wrapped errors, and three
new functions in the errors package ( errors.Unwrap, errors.Is and
errors.As) simplify unwrapping and inspecting wrapped errors.
With this change, If we currently compare errors using ==, we have to
use errors.Is instead. Example:
if err == io.ErrUnexpectedEOF
becomes
if errors.Is(err, io.ErrUnexpectedEOF)
https://tip.golang.org/doc/go1.13#error_wrapping
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
util: golint warns about exported methods to have a
comment or to unexport them.
e2e: golint warns about package comment to be of the form
"Package e2e ..."
Reported-by: https://goreportcard.com/report/github.com/ceph/ceph-csi
Updates: #975
Signed-off-by: Yug Gupta <ygupta@redhat.com>
InvalidPoolID has recently been added, and can be used in other location
too. As GetPoolID is updated with this patch set, return InvalidPoolID
on errors too.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
GetPoolID() did not return ErrPoolNotFound in case the pool could not be
found. This has been addressed as well, so that looking for an existing
pool behaves the same for checking by Name or ID.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
The shared util.ClusterConnection can be used for rbd.rbdVolume and
cephfs.volumeOptions to connect to the Ceph cluster. This will then use
the shared ConnPool, and functions for obtaining connection details will
be the same across cephfs and rbd packages.
The ClusterConnection.Creds credentials are temporarily available until
all the functions have been adapted to use go-ceph and the connection
from the ConnPool.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
The name of the CephFS SubvolumeGroup for the CSI volumes was hardcoded to "csi". To make permission management in multi tenancy environments easier, this commit makes it possible to configure the CSI SubvolumeGroup.
related to #798 and #931
golint warns about the following statements:
ceph-csi/internal/util/csiconfig.go
Line 49: warning: exported function Mons should have comment or be unexported (golint)
ceph-csi/pkg/util/volid.go :
Line 72: warning: exported method CSIIdentifier.ComposeCSIID should have comment
or be unexported (golint)
Reported-by: https://goreportcard.com/report/github.com/ceph/ceph-csi
Updates: #975
Signed-off-by: Yug Gupta <ygupta@redhat.com>
