Création d'un fournisseur de LUN iSCSI dans kubernetes

Il existe un contrôleur capable de piloter à distance un serveur iSCSI targetd. Cela permet de créer une classe de stockage de type iSCSI targetd, afin d'avoir des volumes utilisant des LUNs iSCSI créés à la volée par ce contrôleur.

Création d'une storage class avec les info de notre serveur targetd :

kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: iscsi-targetd-vg-targetd
provisioner: iscsi-targetd
parameters:
# this id where the iscsi server is running
  targetPortal: 192.168.2.107:3260

# if you are using multipath, you can specify additional IPs here, default empty
# portals: 192.168.99.101:3260,192.168.99.102:3260

# this is the iscsi server iqn
  iqn: iqn.2019-02.org.linux-iscsi.k8s:targetd

# this is the iscsi interface to be used, the default is default
# iscsiInterface: default

# this must be on eof the volume groups condifgured in targed.yaml, the default is vg-targetd
  volumeGroup: iscsi

# this is a comma separated list of initiators that will be give access to the created volumes, they must correspond to what you have configured in your nodes.
  initiators: iqn.2019-02.org.linux-iscsi.k8s:dockernode0,iqn.2019-02.org.linux-iscsi.k8s:dockernode1,iqn.2019-02.org.linux-iscsi.k8s:dockernode2

# whether or not to use chap authentication for discovery operations
  chapAuthDiscovery: "false"

# whether or not to use chap authentication for session operations
  chapAuthSession: "false"

# This is the filesystem you want your volume to be formatted with, default xfs
# fsType: xfs

# Whether the volume should be mounted in readonly mode, default false
# readonly: false

Puis pour l'appliquer :

kubectl apply -f iscsi-provisioner-class.yaml