Changelog¶

You can try out OpenEBS v0.4.0 on your Kubernetes Cluster using the quick start guide.

Downloads for v0.4.0¶

The following OpenEBS v0.4.0 containers are available at the Docker Hub.

openebs/jiva:0.4.0 : Storage Controller
openebs/m-apiserver:0.4.0 : OpenEBS Maya API Server along with the latest maya cli.
openebs/openebs-k8s-provisioner:0.4.0 : Dynamic OpenEBS Volume Provisioner for Kubernetes.

New v0.4.0 Features¶

Maya CLI Support for managing snapshots for OpenEBS Volumes
Maya CLI Support for obtaining the capacity usage statistics from OpenEBS Volumes
OpenEBS Volume - Dynamic Provisioner is merged into kubernetes-incubator/external-storage project
OpenEBS Maya API Server uses the Kubernetes scheduler logic to place OpenEBS Volume Replicas on different nodes
OpenEBS Maya API Server can be customized by providing ENV options through K8s YAML file for default replica count and jiva image to be used
OpenEBS user documentation is available at http://openebs.readthedocs.io/en/latest/
OpenEBS now supports deployment on AWS, along with previously supported Google Cloud and On-premise setups
OpenEBS Vagrant boxes are upgraded to support Kubernetes version 1.7.5
OpenEBS can now be deployed within a minikube setup

Issues Fixed in v0.4.0¶

#166 (https://github.com/edorid): openebs-k8s-provisioner goes into crashloopbackoff, during the first volume creation
#176 (https://github.com/maikotz): OpenEBS PV is unreachable after one of the replica becomes unreachable.

Known Issues in v0.4.0¶

#633 (https://github.com/openebs/openebs/issues/633):

Issue:

Setting up OpenEBS with Kubernetes using Minikube on the Ubuntu host displayed the following error. error: error validating “openebs-operator.yaml”: error validating data: unknown object type schema.GroupVersionKind{Group:”“, Version:”v1”, Kind:”ServiceAccount”}; if you choose to ignore these errors, turn validation off with –validate=false

Resolution

Download a specific/compatible version, by replacing the $(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)) portion of the command with a specific version.

For example, to download v1.8.0 on Linux, enter the following command.
```
curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.8.0/bin/linux/amd64/kubectl
```
Make the kubectl binary executable.
```
chmod +x ./kubectl
```

Move the binary in to your PATH.

sudo mv ./kubectl /usr/local/bin/kubectl

CI Updates with v0.4.0¶

Support for on-premise Jenkins CI for performing e2e tests
iSCSI compliance tests are run as part of the CI
CI can now be extended using a framework developer for running storage benchmark tests with vdbench or fio.
CI has been extended to run Percona Benchmarking tests on Kubernetes.

Deprecated with v0.4.0¶

The maya cli options (setup-omm, setup-osh, omm-status, osh-status) to setup and manage dedicated OpenEBS setup is removed. Starting with v0.4.0, only hyperconvergence with Kubernetes is supported.

Notes for Contributors¶

OpenEBS user documentation is currently being moved into openebs/openebs/documentation
OpenEBS developer documentation is currently being added to openebs/openebs/contribute
The deployment and e2e functionality will continue to be located in openebs/k8s and openebs/e2e respectively.
openebs/maya will act as a single repository for hosting different OpenEBS Storage Control plane (orchestration) components.
New /metrics handlers are being added to OpenEBS components to allow integration into tools like Prometheus.
openebs/maya/cmd/maya-agent which will be deployed as a deamon-set running along-side kubelet is being developed. maya-agent will augument the kubelet with storage management functionality.