Kubernetes iSCSI-targetd provisioner helm chart
iSCSI-targetd provisioner is an out of tree provisioner for iSCSI storage for Kubernetes.
Introduction
The provisioner uses the API provided by Open iSCSI targetd to create LVM volumes and export those over iSCSI storage from a remote server.
As prerequisites, an existing iSCSI server managed by targetd must be available.
To setup one, you can check that dockerized targetd.
Installing the Chart
To install the chart with the release name my-release:
$ helm install https://github.com/lionelnicolas/helm-iscsi-targetd-provisioner/archive/master.tar.gz \
--name my-release \
--set targetd.address=iscsi-server.example.netConsult configuration to view the list of all available options.
Uninstalling the Chart
To prevent LVM volume to remain opened and locked on the server, all attached iSCSI volumes needs to be detached and deleted before uninstalling the chart:
$ kubectl get persistentvolumeclaims --all-namespaces
$ kubectl delete --namespace ns1 persistentvolumeclaims pvc-.......
$ kubectl delete --namespace ns1 persistentvolumeclaims pvc-.......
(...)$ helm delete --purge my-releaseThe command removes all the Kubernetes components associated with the chart and deletes the release.
Configuration
| Parameter | Description | Default |
|---|---|---|
timezone |
Timezone (use for logging messages) | America/Toronto |
image.registry |
Docker image registry | quay.io |
image.repository |
Docker image name | external_storage/iscsi-controller |
image.tag |
Docker image tag | v0.0.6 |
image.pullPolicy |
Docker image pull policy | Always |
labels.component |
Value for app.kubernetes.io/component label |
iscsi |
labels.partOf |
Value for app.kubernetes.io/component label |
storage |
provisioner.name |
Name to use when registering provisioner | iscsi-targetd |
provisioner.logLevel |
Provisioner log level | debug |
targetd.scheme |
Scheme to use for the connection | http |
targetd.address |
HTTP host | iscsi-target-server.local |
targetd.port |
HTTP port | 18700 |
targetd.username |
Targetd username | admin |
targetd.password |
Targetd password | admin |
targetd.poolName |
Targetd pool name | vg-targetd |
storageClass.enabled |
Create a storageClass attached to that provisioner | false |
storageClass.name |
Name of the storageClass | iscsi-targetd |
storageClass.fsType |
Filesystem to use when formatting devices | ext4 |
storageClass.readonly |
Readonly device | false |
storageClass.iscsi.ipAddress |
iSCSI target IP address | 127.0.0.1 |
storageClass.iscsi.port |
iSCSI target port | 3260 |
storageClass.iscsi.iqn |
iSCSI Qualified Name (IQN) | iqn.2003-01.org.linux-iscsi.k8s:targetd |
storageClass.iscsi.initiators |
comma separated list of possible iSCSI initiators | `` |
Check values.yaml comments for all the possible configuration options.
License
This is licensed under the Apache License, Version 2.0. Please see LICENSE for the full license text.
Copyright 2019 Lionel Nicolas
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