This repository is inactive, please refer to: https://github.com/openshift/ovirt-csi-driver
Implementation of a CSI driver for oVirt.
This work is a continuation of the work done in github.com/ovirt/ovirt-openshift-extensions, and is the future of the development of a storage driver for oVirt.
This repo also contains an operator to deploy the driver on OpenShift or Kubernetes with most of the code based on openshift/csi-operator.
Before installation, please ensure that you are running a k8s cluster which supports the CSI implementation, such as Openshift
Openshift/OKD 4:
- Clone this repository
- Ensure that you have oc installed locally
- Run:
export KUBECONFIG=</path/to/your>/auth/kubeconfig oc create -f deploy/csi-driver - validate:
export KUBECONFIG=</path/to/your>/auth/kubeconfig oc get pods -n ovirt-csi-driver oc new-project zzz-test oc create -f deploy/csi-driver/example oc get pods -n zzz-test
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
name: ovirt-csi-sc
annotations:
storageclass.kubernetes.io/is-default-class: "true"
provisioner: csi.ovirt.org
parameters:
# the name of the oVirt storage domain. "nfs" is just an example.
storageDomainName: "nfs"
thinProvisioning: "true"kind: PersistentVolumeClaim
apiVersion: v1
metadata:
name: 1g-ovirt-cow-disk
annotations:
volume.beta.kubernetes.io/storage-class: ovirt-csi-sc
spec:
storageClassName: ovirt-csi-sc
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 1GiapiVersion: v1
kind: Pod
metadata:
name: testpodwithcsi
spec:
containers:
- image: busybox
name: testpodwithcsi
command: ["sh", "-c", "while true; do ls -la /opt; echo this file system was made availble using ovirt csi driver; sleep 1m; done"]
imagePullPolicy: Always
volumeMounts:
- name: pv0002
mountPath: "/opt"
volumes:
- name: pv0002
persistentVolumeClaim:
claimName: 1g-ovirt-cow-diskKubernetes:
- tbc
- operator
- dev/test
- credential requests (CredentialRequest) require the openshift cloud credentials operator in order to provision. You will need to either deploy the operator and create the ovirt-credentials secret in the kube-system namespace, or provision the ovirt-credentials secret yourself into the ovirt-csi-driver namespace.
Get all the objects for the CSI driver
$ oc get all -n ovirt-csi-driver
NAME READY STATUS RESTARTS AGE
pod/ovirt-csi-node-2nptq 0/2 PodInitializing 0 2d23h
pod/ovirt-csi-node-7t266 2/2 Running 0 15m
pod/ovirt-csi-plugin-0 0/3 PodInitializing 0 2d23h
NAME DESIRED CURRENT READY UP-TO-DATE AVAILABLE NODE SELECTOR AGE
daemonset.apps/ovirt-csi-node 1 1 1 1 1 <none> 2d23h
NAME READY AGE
statefulset.apps/ovirt-csi-plugin 0/1 2d23h
ovirt-csi-plugin is a pod, that is part of the StatefulSet, running the controller's logic (create volume, delete volume, attach volume and more).
It runs the following containers: csi-external-attacher (triggers ControllerPublish/UnpublishVolume), csi-external-provisioner (mainly for Create/DeleteVolume) and ovirt-csi-driver.
ovirt-csi-node is a DaemonSet running the csi-driver-registrar (provides information about the driver with GetPluginInfo and GetPluginCa pabilities) and ovirt-csi-driver.
The sidecar containers (csi-external-attacher, csi-external-provisioner, csi-driver-registrar) run alongside ovirt-csi-driver and run its code via gRPC.
Get inside the pod's containers:
oc -n ovirt-csi-driver rsh -c <container name> pod/ovirt-csi-node-2nptq
Watch logs:
oc logs pods/ovirt-csi-node-2nptq -n ovirt-csi-driver -c <container name> | less
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