Commit Graph

32 Commits

Author SHA1 Message Date
ShyamsundarR
885ec7049d Update Unstage transaction to undo steps done in Stage
In unstage we now adhere to the transaction (or order of steps)
done in Stage. To enable this we stash the image meta data
into a local file on the staging path for use with unstage
request.

This helps in unmapping a stale map, in case the mount or
other steps in the transaction are complete.

Signed-off-by: ShyamsundarR <srangana@redhat.com>
2019-08-13 14:07:52 +00:00
ShyamsundarR
44f7b1fe4b Use "rbd device list" to list and find rbd images and their device paths
This change also starts mapping nbd based access using ther rbd CLI
as, it is a prerequisite to get device listing for nbd as well.

Signed-off-by: ShyamsundarR <srangana@redhat.com>
2019-08-13 14:07:52 +00:00
Madhu Rajanna
7c2fb6187a remove post validation of rbd device
once we map the rbd image on a node
we will get the device name its mapped
in the map output itself,no need to
check the devicepath post rbd  mapping

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2019-08-07 14:52:13 +00:00
Madhu Rajanna
d350b13d02 unmap rbd volume if we fail to get devicepath
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2019-07-26 16:23:39 +05:30
ShyamsundarR
bd204d7d45 Use --keyfile option to pass keys to all Ceph CLIs
Every Ceph CLI that is invoked at present passes the key via the
--key option, and hence is exposed to key being displayed on
the host using a ps command or such means.

This commit addresses this issue by stashing the key in a tmp
file, which is again created on a tmpfs (or empty dir backed by
memory). Further using such tmp files as arguments to the --keyfile
option for every CLI that is invoked.

This prevents the key from being visible as part of the argument list
of the invoked program on the system.

Fixes: #318

Signed-off-by: ShyamsundarR <srangana@redhat.com>
2019-07-25 12:46:15 +00:00
Madhu Rajanna
f4c80dec9a Implement NodeStage and NodeUnstage for rbd
in NodeStage RPC call  we  have to map the
device to the node plugin and make  sure  the
the device will be mounted to  the global path

in  nodeUnstage request unmount the device from
global path and unmap the device

if the volume mode is block  we will be creating
a file inside a stageTargetPath  and it will be
considered  as the global path

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2019-07-24 12:49:21 +00:00
ShyamsundarR
c4a3675cec Move locks to more granular locking than CPU count based
As detailed in issue #279, current lock scheme has hash
buckets that are count of CPUs. This causes a lot of contention
when parallel requests are made to the CSI plugin. To reduce
lock contention, this commit introduces granular locks per
identifier.

The commit also changes the timeout for gRPC requests to Create
and Delete volumes, as the current timeout is 10s (kubernetes
documentation says 15s but code defaults are 10s). A virtual
setup takes about 12-15s to complete a request at times, that leads
to unwanted retries of the same request, hence the increased
timeout to enable operation completion with minimal retries.

Tests to create PVCs before and after these changes look like so,

Before:
Default master code + sidecar provisioner --timeout option set
to 30 seconds

20 PVCs
Creation: 3 runs, 396/391/400 seconds
Deletion: 3 runs, 218/271/118 seconds
  - Once was stalled for more than 8 minutes and cancelled the run

After:
Current commit + sidecar provisioner --timeout option set to 30 sec
20 PVCs
Creation: 3 runs, 42/59/65 seconds
Deletion: 3 runs, 32/32/31 seconds

Fixes: #279
Signed-off-by: ShyamsundarR <srangana@redhat.com>
2019-07-01 14:10:14 +00:00
james58899
1e8fa38879 Fix nil err cause nbd fail to mount 2019-06-29 11:12:58 +00:00
ShyamsundarR
c5762b6b5c Modify RBD plugin to use a single ID and move the id and key into the secret
RBD plugin needs only a single ID to manage images and operations against a
pool, mentioned in the storage class. The current scheme of 2 IDs is hence not
needed and removed in this commit.

Further, unlike CephFS plugin, the RBD plugin splits the user id and the key
into the storage class and the secret respectively. Also the parameter name
for the key in the secret is noted in the storageclass making it a variant and
hampers usability/comprehension. This is also fixed by moving the id and the key
to the secret and not retaining the same in the storage class, like CephFS.

Fixes #270

Testing done:
- Basic PVC creation and mounting

Signed-off-by: ShyamsundarR <srangana@redhat.com>
2019-06-24 13:46:14 +00:00
Madhu Rajanna
a38986fce0 Enable all static-checks in golangci-lint
* Enable all static-checks in golangci-lint
* Update golangci-lint version
* Fix issue found in golangci-lint

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2019-06-10 15:56:17 +05:30
ShyamsundarR
d02e50aa9b Removed config maps and replaced with rados omaps
Existing config maps are now replaced with rados omaps that help
store information regarding the requested volume names and the rbd
image names backing the same.

Further to detect cluster, pool and which image a volume ID refers
to, changes to volume ID encoding has been done as per provided
design specification in the stateless ceph-csi proposal.

Additional changes and updates,
- Updated documentation
- Updated manifests
- Updated Helm chart
- Addressed a few csi-test failures

Signed-off-by: ShyamsundarR <srangana@redhat.com>
2019-05-19 12:29:33 +00:00
wilmardo
891daa9375 Replaces the references to the Kubernete Authors with the Ceph-CSI authors 2019-04-03 11:14:08 +02:00
ShyamsundarR
fc0cf957be Updated code and docs to reflect correct terminology
- Updated instances of fsid with clusterid
- Updated instances of credentials/subject with user/key

Signed-off-by: ShyamsundarR <srangana@redhat.com>
2019-03-26 16:19:24 +00:00
ShyamsundarR
97f8c4b677 Provide options to pass in Ceph cluster-id
This commit provides the option to pass in Ceph cluster-id instead
of a MON list from the storage class.

This helps in moving towards a stateless CSI implementation.

Tested the following,
- PV provisioning and staging using cluster-id in storage class
- PV provisioning and staging using MON list in storage class

Did not test,
- snapshot operations in either forms of the storage class

Signed-off-by: ShyamsundarR <srangana@redhat.com>
2019-03-26 16:19:24 +00:00
j-griffith
6ec1196f47 Rework multi-node-multi-writer feature
This commit reverts the initial implementation of the
multi-node-multi-writer feature:
  commit: b5b8e46460

It replaces that implementation with a more restrictive version that
only allows multi-node-multi-writer for volumes of type `block`

With this change there are no volume parameters required in the stoarge
class, we also fail any attempt to create a file based device with
multi-node-multi-write being specified, this way a user doesn't have to
wait until they try and do the publish before realizing it doesn't work.
2019-03-18 10:07:06 -06:00
j-griffith
a164169fd3 Revert "Add multiNodeWritable option for RBD Volumes"
This reverts commit b5b8e46460.
2019-03-13 18:26:46 -06:00
j-griffith
b5b8e46460 Add multiNodeWritable option for RBD Volumes
This change adds the ability to define a `multiNodeWritable` option in
the Storage Class.

This change does a number of things:
1. Allow multi-node-multi-writer access modes if the SC options is
enabled
2. Bypass the watcher checks for MultiNodeMultiWriter Volumes
3. Maintains existing watcher checks for SingleNodeWriter access modes
regardless of the StorageClass option.

fix lint-errors
2019-03-01 21:59:57 +00:00
Humble Chirammal
cb77ff5d87 Migrate rbd package to klog from glog
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
2019-02-05 12:09:04 +00:00
Madhu Rajanna
5983fedddb Fix issues found in gometalinter static check
Signed-off-by: Madhu Rajanna <mrajanna@redhat.com>
2019-02-04 10:44:37 +05:30
Madhu Rajanna
03d93219d7 Fix metalinter issue
Signed-off-by: Madhu Rajanna <mrajanna@redhat.com>
2019-01-29 11:37:03 +05:30
Madhu Rajanna
50ba8ed446 Fix gometalinter issues
Signed-off-by: Madhu Rajanna <mrajanna@redhat.com>
2019-01-29 11:24:36 +05:30
Madhu Rajanna
ca2e475296 Fix gometalinter issues
Signed-off-by: Madhu Rajanna <mrajanna@redhat.com>
2019-01-29 11:23:50 +05:30
Madhu Rajanna
7a0c233c27 Fix issues found in gometalinter
Signed-off-by: Madhu Rajanna <mrajanna@redhat.com>
2019-01-29 11:20:35 +05:30
Madhu Rajanna
1d11d0acc3 Fix lint issues
Signed-off-by: Madhu Rajanna <mrajanna@redhat.com>
2019-01-25 14:15:25 +05:30
Madhu Rajanna
49c8fe5d50 Remove conversion which is not required
Signed-off-by: Madhu Rajanna <mrajanna@redhat.com>
2019-01-25 14:14:48 +05:30
Madhu Rajanna
1c03334a90 Add constant for rbd and ndb
Signed-off-by: Madhu Rajanna <mrajanna@redhat.com>
2019-01-25 14:14:48 +05:30
Madhu Rajanna
9f76f6bd59 Remove dead code
Signed-off-by: Madhu Rajanna <mrajanna@redhat.com>
2019-01-25 14:10:52 +05:30
Madhu Rajanna
20af5afcab Fix golint issues
Signed-off-by: Madhu Rajanna <mrajanna@redhat.com>
2019-01-16 18:33:38 +05:30
Huamin Chen
d5b7543565 allow monitors be embedded in credential secret
Signed-off-by: Huamin Chen <hchen@redhat.com>
2018-09-21 14:43:01 +00:00
Huamin Chen
30a5d9a6e7 add rbd-nbd mounter in storage class
Signed-off-by: Huamin Chen <hchen@redhat.com>
2018-09-18 14:09:12 +00:00
Huamin Chen
6f3625b11e review feedback
Signed-off-by: Huamin Chen <hchen@redhat.com>
2018-09-18 13:10:28 +00:00
Huamin Chen
8955eb03bc support rbd-nbd
Signed-off-by: Huamin Chen <hchen@redhat.com>
2018-09-17 18:12:22 +00:00