OpenEBS Releases

Release VersionNotesHighlights

1.4.0

Latest Release
(Recommended)
Release Notes
Upgrade Steps
- Support for scale down of cStor volume replicas
- Support an alpha feature in NDM to add Prometheus exporter for exposing disk-level metrics. This Cluster level exporter gives details of blockdevice such as state, claim state etc.
- Support of setup arm builds for apiserver and local provisioner. The images will be built on top of arm64v8/ubuntu:18.04.
- Supporting automated creation of TLS certificate signed by Kubernetes cluster root Certificate Authority for external admission-webhook-server. This will establish a trust to secure the communication between admission-webhook-server and kube-apiserver.
- Support the snapshot and clone feature in cStor volume provisioned via CSI provisioner. This feature will be available in alpha.
- Support of encryption feature in Local PV created on a ZFS based storage pool.
- Support of adding topology information for Local PV on ZFS based storage pool. The details of appropriate ZFS storage pool can be mentioned in corresponding StorageClass via topology so that the scheduler will take care of scheduling the application on the appropriate node.
- Support for scheduling Local PV on appropriate ZFS storage pool on a node which has less number of Local PV volume provisioned in the given pool.
- Support of XFS file system for Local PV creation on ZFS based storage pools.
- Enhanced cStor volume description by fixing output of knownreplicas information which will help to maintain trusty/known replica information of the particular cStor volume in the cStor volume specification.
- Enhanced cStor volume replica status with additional 2 phases based on different scenarios. The additional phases are NewReplicaDegraded and ReconstructingNewReplica.
- Enhanced maya-exporter by adding pool last sync time metric as openebs_zpool_last_sync_time . This also modifies value of openebs.io:livenesstimestamp in cStor pool YAML to set date in epoch timestamp.
- Enhanced admission webhook server by adding missing labels in config,secret and service and will fatal out when a missing ENV’s error and configs happen.
- Fixes a bug in Jiva where Jiva replica pods are stuck in crashedloopbackoff state after a restart.
- Fixes a bug in cStor target while rebuilding process in a single replica quorum case.
- Fixes a bug in NDM for device detection in KVM-based virtual machines.. A new disk model QEMU_HARDDISK is added to the list of disk models.
- Fixes a bug in NDM, where the os-disk filter was not able to exclude the blockdevices if the OS was installed on an NVMe device.

1.3.0

Release Notes
Upgrade Steps
- Add support to scaleup replicas, replica movement across pools and replica replacement scenarios. This feature is in alpha state. This feature will work for cStor volumes which are created with existing SPC configuration.
- Availability of NDM on different platforms like amd64 and arm64. NDM can now also be compiled in ARM architecture using manual steps.
- Added support for provisioning CSI based volume using lease leader election API.
- Support of running OpenEBS in Kubernetes 1.16 version. The k8s v1.16 release will stop serving the deprecated API versions in favour of newer and more stable API versions.
- Support the addition of resource limit to cStor pool pod using with CSPC configuration. resource field on CSPC is used to pass resource limit and requests to cstor-pool container and auxResource field on CSPC is used to pass resource limit and requests to other 2 containers such as cstor-mgmt and m-exporter.
- Enhanced backup capability of openebs-velero plugin by checking the status of Healthy cStor Volume Replica. In the previous version, a check was performed for healthy CVR during setup only. There might be some chances of cStor pod restart and CVR becomes degraded when we trigger the backup.
- Enhanced CVC(cStor Volume Claim) CR by adding provisioning failure events while provisioning cStor volume using CSI provisioner.
- Fixed a bug where cStor volume becoming read-only due to restart of cstor-volume-mgmt container alone in the target pod.
- Fixed wrong status on CVR from Duplicate to Online. Duplicate state on CVR was blocking reconcile on the volume creation in ephemeral case.
- Fixed a bug in cStor storage pool YAML. The livenessProbe command zfs set io.openebs:livenesstimestamp sets the value of io.openebs:livenesstimestamp to the current timestamp. In previous versions, this value was not set properly because of some shell quoting issues in the command.
- Fixed a bug where Jiva volume running on CentOS 7 / RHEL in OpenShift cluster is going to read-only when the controller pod is restarted either due to node restart or upgrades or any other reason. This is due to iSCSI default timeout is replaced with 5 sec if multipath support is enabled on the node.

1.2.0

Release Notes
Upgrade Steps
- CSI Driver for cStor Volumes (currently in Alpha) has added support for resizing and volume expansion feature.
- The new version of cStor Schema has been introduced to address the user feedback in terms of ease of use for cStor provisioning as well as to make a way in the schema to perform Day 2 Operations using GitOps.
- Enhanced error logging of cStor storage pool with a new format for automatic alert generation.
- Enhanced Jiva internal snapshot deletion when a number of internal snapshots are more than 10. The deletion happens automatically one by one.
- Enhanced velero-plugin to support backup/restore for OpenEBS installed in a different namespace other than openebs namespace.
- Enhanced NDM to include NodeAttributes in BD and BDC. This will support storing of node name along with the hostname on the BD and BDC CRs.
- Fixes BlockDevice CRD by adding node name to the printer column. This feature will get the name of the node to which the BD is attached while performing kubectl get bd -n <openebs_installed_namespace>.
- Fixes a bug in Jiva when patching and clean up operation of Jiva deployments are failing on Nodes where hostname is not the same as nodename. The fix will set nodeSelector in deployment and clean-up job after converting the nodename into hostname.
- Support of provisioning Local PV in clusters where nodename and hostname are different.
- Support customization of default hostpath for Jiva and Local PV. With the current implementation, customization will not persisted when a restart happened on the Node where maya-apiserver pod is running or when maya-apiserver pod is restarted.
- Fixes a bug in NDM where all devices on a node were getting excluded when os-disk-exclude-filter is failed to find the device where OS is installed.
- Fixes a bug in snapshot controller where snapshot operation is not throwing any error for invalid cas-type. This fix will add cas-type validation before triggering the snapshot operations. The valid cas-type are cStor and Jiva.
- Fixes the bug where more than required BlockDevicesClaims are created for requested SPC in auto pool method.
- Fixes an issue in maya-api installer to skip re-apply of default SPC and SC resources if they were installed previously by older version(s) of maya or prior to mayaapi-server restart(s)
- Fixes a bug in cStor pool when cStor Storage Pool management creates pool if pool import failed when a disk is not accessible momentarily just at the time of import. cStor storage pool will be in the pending state when this scenario occurs. This PR will fix cStor pool creation by looking on Status.Phase as Init or PoolCreationFailed to create the pool. If Status.Phase is any other string, cStor Storage Pool management will try to import the pool. This can cause impact to the current workflow of Ephemeral disks, which works as of now, as NDM can’t detect it as different disk and recognizes as the previous disk.
- Fixes a bug during a cleanup operation performed on BlockDevice and clean up job is not getting canceled when the state of BlockDevice is changed from Active to other states.
- Fixes a bug in NDM where cleanup jobs remain in pending state in Openshift cluster. The fix will add service account to cleanup jobs, so that clean-up job pods acquire privileged access to perform the action.

1.1.0

Release Notes
Upgrade Steps
- Support for an alpha version of CSI driver with limited functionality for provisioning and de-provisioning of cStor volumes.
- Support for the upgrade of OpenEBS storage pools and volumes through Kubernetes Job. As a user, you no longer have to download scripts to upgrade from 1.0 to 1.1, like in earlier releases.
- Enhanced Prometheus metrics exported by Jiva for identifying whether an iSCSI Initiator is connected to Jiva target.
- Enhanced NDM operator capabilities for handling NDM CRDs installation and upgrade. Earlier this process was handled through maya-apiserver.
- Enhanced velero-plugin to take backup based on the openebs.io/cas-type:cstor and it will skip backup for unsupported volumes(or storage providers).
- Enhanced velero-plugin to allow users to specify a backupPathPrefix for storing the volume snapshots in a custom location. This allows users to save/backup configuration and volume snapshot data under the same location.
- Added an ENV flag which can be used to disable default config creation. The default storage configuration can be modified after installation, but it is going to be overwritten by the OpenEBS API Server.The recommended approach for customizing is to create their own storage configuration using the default options as examples/guidance.
- Fixes an issue where rebuilding cStor volume replica failed if the cStor volume capacity was changed after the initial provisioning of the cStor volume.
- Fixes an issue with cStor snapshot taken during transition of replica’s rebuild status.
- Fixes an issue where application file system was breaking due to the deletion of Jiva auto-generated snapshots.
- Fixes an issue where NDM pod was getting restarted while probing for details from the devices that had write cache supported.
- Fixes an issue in NDM where Seachest probe was holding open file descriptors to LVM devices and LVM devices were unable to detach from the Node due to NDM hold on device.
- Fixes a bug where backup was failing where openebs operator was installed through helm. velero-plugin was checking maya-apiserver name and it was different when you have installed via helm based method. Updated velero-plugin to check label of maya-apiserver service name.

1.0.0

Release Notes
Release Blog
Upgrade Steps
- Introduced a cluster level component called NDM operator to manages the access to block devices, selecting & binding BD to BDC, cleaning up the data from the released BD.
- Support for using Block Devices for OpenEBS Local PV.
- Enhanced cStor Data Engine to allow interoperability of cStor Replicas across different versions.
- Enhanced the cStor Data Engine containers to contain troubleshooting utilities.
- Enhanced the metrics exported by cStor Pools to include details of the provisioning errors.
- Fixes an issue where cStor replica snapshots created for the rebuild were not deleted, causing space reclamation to fail.
- Fixes an issue where cStor volume used space was showing a very low value than actually used.
- Fixes an issue where Jiva replicas failed to register with its target if there was an error during initial registration.
- Fixes an issue where NDM would create a partitioned OS device as a block device.
- Fixes an issue where Jiva replica data was not clean up if the PVC and its namespace were deleted prior to scrub job completion.
- Fixes an issue where Velero Backup/Restore was not working with hostpath Local PVs.
- Upgraded the base ubuntu images for the containers to fix the security vulnerabilities reported in Ubuntu Xenial.
- Custom resource (Disk) used in earlier releases has been changed to Block Device.

0.9.0

Release Notes
Enhanced the cStor Data Engine containers to contain troubleshooting utilities.-Enhanced cStor Data Engine to allow interoperability of cStor Replicas across different versions. -Support for using Block Devices for OpenEBS Local PV.
- Support for Dynamic Provisioning of Local PV
- Enhanced the cStor Volumes to support Backup/Restore to S3 compatible storage using the incremental snapshots supported by cStor Volumes.
- Enhanced the cStor Volume Replica to support an anti-affinity feature that works across PVs.
- Enhanced the cStor Volume to support scheduling the cStor Volume Targets along side the application pods that interacts with the cStor Volume.
- Enhances the Jiva Volume provisioning to provide an option called DeployInOpenEBSNamespace.
- Enhanced the cStor Volume Provisioning to be customized for varying workload or platform type during the volume provisioning.
- Enhanced the cStor Pools to export usage statistics as prometheus metrics.
- Enhanced the Jiva Volume replica rebuild process by eliminating the need to do a rebuild if the Replica already has all the required data to serve the IO.
- Enhanced the Jiva Volume - replica provisioning to pin the Replica’s to the nodes where they are initially scheduled using Kubernetes nodeAffinity.
- Fixes an issue where NDM pods failed to start on nodes with selinux=on.
- Fixes an issue where cStor Volume with single replicas were shown to be in Degraded, rebuilding state.
- Fixes an issue where user was able to delete a PVC, even if there were clones created from it, resulting in data loss for the cloned volumes.
- Fixes an issue where user was able to delete a PVC, even if there were clones created from it, resulting in data loss for the cloned volumes.
- Fixes an issue where cStor Volumes failed to provision if the /var/openebs/ directory was not editable by cStor pods like in the case of SuSE Platforms.
- Fixes an issue where Jiva Volume - Target can mark a replica as offline if the replica takes longer than 30s to complete the sync/unmap IO.
- Fixes an issue with Jiva volume - space reclaim thread, that was erroring out with an exception if the replica is disconnected from the target.

0.8.2
Release NotesEnhanced the metrics exported by cStor Pools to include details of the provisioning errors.-Enhanced the cStor Data Engine containers to contain troubleshooting utilities.-Enhanced cStor Data Engine to allow interoperability of cStor Replicas across different versions.
- Fixed an issue causing cStor Volume Replica CRs to be stuck, when the OpenEBS
namespace was being deleted.
- Fixed an issue where a newly added cStor Volume Replica may not be successfully
registered with the cStor target, if the cStor tries to connect to Replica before the replica
is completely initialised.
- Fixed an issue with Jiva Volumes where target can mark the Replica as Timed out on IO,
even when the Replica might actually be processing the Sync IO.
- Fixed an issue with Jiva Volumes that would not allow for Replicas to re-connect with the
Target, if the initial Registration failed to successfully process the hand-shake request.
- Fixed an issue with Jiva Volumes that would cause Target to restart when a send
diagnostic command was received from the client
- Fixed an issue causing PVC to be stuck in pending state, when there were more than
one PVCs associated with an Application Pod
- Toleration policy support for cStorStoragePool.
0.8.1Release Blog

Release Notes
Fixes an issue where cStor replica snapshots created for the rebuild were not deleted, causing space reclamation to fail.-Enhanced the metrics exported by cStor Pools to include details of the provisioning errors.-Enhanced the cStor Data Engine containers to contain troubleshooting utilities.
- Ephemeral Disk Support
- Enhanced the placement of cStor volume replica in a distributed randomly between the available pools.
- Enhanced the NDM to fetch additional details about the underlying disks via SeaChest.
- Enhanced the NDM to add additional information to the DiskCRs like if the disks is partitioned or has a filesystem on it.
- Enhanced the OpenEBS CRDs to include custom columns to be displayed using kubectl get output of the CR. This feature requires K8s 1.11 or higher.
- Fixed an issue where cStor volume causes timeout for iSCSI discovery command and can potentially trigger a K8s vulnerability that can bring down a node with high RAM usage.
0.8.0Release Blog

Release Notes
Fixes an issue where cStor volume used space was showing a very low value than actually used.-Fixes an issue where cStor replica snapshots created for the rebuild were not deleted, causing space reclamation to fail.-Enhanced the metrics exported by cStor Pools to include details of the provisioning errors.
- cStor Snapshot & Clone
- cStor volume & Pool runtime status
- Target Affinity for both Jiva & cStor
- Target namespace for cStor
- Enhance the volume metrics exporter
- Enhance Jiva to clear up internal snapshot taken during Replica rebuild
- Enhance Jiva to support sync and unmap IOs
- Enhance cStor for recreating pool by automatically selecting the disks.
0.7.2Release NotesFixes an issue where jiva replicas failed to register with its target if there was an error during initial registration.-Fixes an issue where cStor volume used space was showing a very low value than actually used.-Fixes an issue where cStor replica snapshots created for the rebuild were not deleted, causing space reclamation to fail.
- Support for clearing space used by Jiva replica after the volume is deleted using Cron Job.
- Support for a storage policy that can disable the Jiva Volume Space reclaim.
- Support Target Affinity fort Jiva target Pod on the same node as the Application Pod.
- Enhanced Jiva related to internal snapshots for rebuilding Jiva.
- Enhanced exporting cStor volume metrics to prometheus
0.7.0Release Blog

Release Notes
Fixes an issue where NDM would create a partitioned OS device as a block device.-Fixes an issue where jiva replicas failed to register with its target if there was an error during initial registration.-Fixes an issue where cStor volume used space was showing a very low value than actually used.
- Enhanced NDM to discover block devices attached to Nodes .
- Alpha support for cStor Engine
- Naming convention of Jiva Storage pool as ‘default’ and StorageClass as ‘openebs-jiva-default’
- Naming convention of cStor Storage pool as ‘cstor-sparse-pool’ and StorageClass as ‘openebs-cstor-sparse’
- Support for specifying replica count,CPU/Memory Limits per PV,Choice of Storage Engine, Nodes on which data copies should be copied.
0.6.0Release Blog

Release Notes
Fixes an issue where jiva replica data was not clean up if the PVC and its namespace were deleted prior to scrub job completion.-Fixes an issue where NDM would create a partitioned OS device as a block device.-Fixes an issue where jiva replicas failed to register with its target if there was an error during initial registration.
- Integrate the Volume Snapshot capabilities with Kubernetes Snapshot controller.
- Enhance maya-apiserver to use CAS Templates for orchestrating new Storage Engines.
- Enhance mayactl to show details about replica and Node details where replicas are running.
- Enhance maya-apiserver to schedule Replica Pods on specific nodes using nodeSelector.
- Enhance e2e tests to simulate chaos at different layers such as - CPU, RAM, Disk, Network, and Node.
- Support for deploying OpenEBS via Kubernetes stable Helm Charts.
- Enhanced Jiva volume to handle more read only volume scenarios
0.5.4Release NotesFixes an issue where Velero Backup/Restore was not working with hostpath Local PVs.-Fixes an issue where jiva replica data was not clean up if the PVC and its namespace were deleted prior to scrub job completion.-Fixes an issue where NDM would create a partitioned OS device as a block device.
- Provision to specify filesystems other than ext4 (default).
- Support for XFS filesystem format for mongodb StatefulSet using OpenEBS Persistent Volume.
- Increased integration test & e2e coverage in the CI
- OpenEBS is now available as a stable chart from Kubernetes
0.5.3Release NotesUpgraded the base ubuntu images for the containers to fix the security vulnerabilities reported in Ubuntu Xenial.-Fixes an issue where Velero Backup/Restore was not working with hostpath Local PVs.-Fixes an issue where jiva replica data was not clean up if the PVC and its namespace were deleted prior to scrub job completion.
- Fixed usage of StoragePool issue when RBAC settings are applied
- Enhanced memory consumption usage for Jiva Volume
0.5.2Release NotesChanged the custom resource (Disk) used in earlier releases has been changed to Block Device.-Upgraded the base ubuntu images for the containers to fix the security vulnerabilities reported in Ubuntu Xenial.-Fixes an issue where Velero Backup/Restore was not working with hostpath Local PVs.
- Support to set non-SSL Kubernetes endpoints to use by specifying the ENV variables on maya-apiserver and openebs-provisioner.
0.5.1Release Notes-Changed the custom resource (Disk) used in earlier releases has been changed to Block Device.-Upgraded the base ubuntu images for the containers to fix the security vulnerabilities reported in Ubuntu Xenial.
- Support to use Jiva volume from CentOS iSCSI Initiator
- Support openebs-k8s-provisioner to be launched in non-default namespace
0.5.0Release Blog

Release Notes
-Changed the custom resource (Disk) used in earlier releases has been changed to Block Device.
- Enhanced Storage Policy Enforcement Framework for Jiva.
- Extend OpenEBS API Server to expose volume snapshot API.
- Support for deploying OpenEBS via helm charts.
- Sample Prometheus configuration for collecting OpenEBS Volume Metrics.
- Sample Grafana OpenEBS Volume Dashboard - using the prometheus Metrics
0.4.0Release Blog

Release Notes
- Enhanced MAYA cli support for managing snapshots,usage statistics.
- Support OpenEBS Maya API Server uses the Kubernetes scheduler logic to place OpenEBS Volume Replicas on different nodes
- Support Extended deployment of OpenEBS in AWS.
- Support OpenEBS can be deployed in a minikube setup.
- Enhanced openebs-k8s-provisioner from crashloopbackoff state
0.3.0Release Blog

Release Notes
- Support OpenEBS hyper-converged with Kubernetes Minion Nodes.
- Enable OpenEBS via the openebs-operator.yaml
- Supports creation of OpenEBS volumes using Dynamic Provisioner.
- Storage functionality and Orchestration/Management functionality is delivered as container images on DockerHub.
0.2.0Release Blog

Release Notes
- Integrated OpenEBS FlexVolume Driver and Dynamically Provision OpenEBS Volumes into Kubernetes.
- Support Maya api server to provides new AWS EBS-like API for provisioning Block Storage.
- Enhanced Maya api server to Hyper Converged with Nomad Scheduler.
- Backup/Restore Data from Amazon S3.
- Node Failure Resiliency Fixes

See Also:

cStor Roadmap

OpenEBS FAQ

Container Attached Storage or CAS