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All Projects → sysoperator → kube-lvm-flexvolume

sysoperator / kube-lvm-flexvolume

Licence: other
Enhanced LVM flexVolume driver for Kubernetes

Programming Languages

shell
77523 projects

Labels

kubernetespersistent-storagelvmthinprovisioningflexvolume-driver

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kube-lvm-flexvolume

Enhanced version of LVM flexVolume driver for Kubernetes.

Description

lvm-flexvolume provides a LVM driver with Thin Provisioning support. It will allocate LV from a previously created VG/Thinpool and mount it for usage in a container.

Changes prior to Kubernetes version

  • can create LV if does not exist
  • support for thin provisioned logical volumes
  • support for optional mount options

Installation

  • Make sure kubelet is running with --enable-controller-attach-detach=false
  • Create the directory /usr/libexec/kubernetes/kubelet-plugins/volume/exec/sysoperator.pl~lvm
  • Install driver as /usr/libexec/kubernetes/kubelet-plugins/volume/exec/sysoperator.pl~lvm/lvm

Create a Kubernetes Pod such as:

cat examples/nginx.yaml | kubectl apply -f -

The driver will create a logical volume and the volume will also be mounted as /data inside the container.

Options

Following options are required:

  • volumeID - Name of logical volume.
  • size - Size to allocate for the new logical volume. Accepts any value supported by --size parameter of lvcreate.
  • volumegroup - Name of volume group.

Optional options may be passed:

  • thinpool - Name of thin pool.
  • mountoptions - Additional options passed to mount. (e.g. noatime)
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