cli

Longhorn Preflight

longhorn-preflight helps install, configure and check the prerequisites for Longhorn system.

Install

Deploy

Users can create longhorn-preflight DaemonSet for installing and configuring the prerequisites and the environment.

# kubectl -f deploy/install.yaml

Tweak the Options

General Options

• UPDATE_PACKAGE_LIST: Update package list before install required packages.

SPDK Specific Options

• ENABLE_SPDK: Enable installation of required packages, modules and setup.
• HUGEMEM: Hugepage size in MiB for SPDK.
• PCI_ALLOWED: Whitespace separated list of PCI devices. By default, block all PCI devices use a non-valid address.
• DRIVER_OVERRIDE: Bind devices to the given user space driver.

Check

Deploy

Users can create longhorn-preflight DaemonSet for checking the prerequisites and the environment.

# kubectl -f deploy/check.yaml

Tweak the Options

SPDK Specific Options

• ENABLE_SPDK: Enable installation of required packages, modules and setup.
• HUGEMEM: Hugepage size in MiB for SPDK.
• UIO_DRIVER: Userspace IO driver.