jumpstarter-driver-iscsi 0.8.1

Exporter ISCSI service driver

iSCSI server driver

jumpstarter-driver-iscsi provides a lightweight iSCSI target implementation powered by the Linux RFC-tgt framework via the rtslib-fb Python bindings.

⚠️ The driver creates and manages an iSCSI target (server). To access the exported LUNs you still need a separate iSCSI initiator (client) on the machine running your test-code / DUT.

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Installation

rtslib-fb relies on the in-kernel LIO target framework which is packaged differently by each distribution. You should be able to run sudo targetcli without errors before you start the Jumpstarter driver.

Fedora:

$ sudo dnf install targetcli python3-rtslib

Finally, install the driver itself from the Jumpstarter package index:

:substitutions:
$ pip3 install --extra-index-url {{index_url}} jumpstarter-driver-iscsi

Configuration

The driver is configured through the exporter YAML file. A minimal example exports the local file disk.img as a 5 GiB LUN:

export:
  iscsi:
    type: jumpstarter_driver_iscsi.driver.ISCSI
    config:
      root_dir: "/var/lib/iscsi"
      target_name: "demo"
      remove_created_on_close: false  # Keep disk images persistent (default)
      # When size_mb is 0 a pre-existing file size is used.

Config parameters

Parameter	Description	Type	Required	Default
root_dir	Directory where image files will be stored	str	no	/var/lib/iscsi
iqn_prefix	IQN prefix to use when building the target IQN	str	no	iqn.2024-06.dev.jumpstarter
target_name	The target name appended to the IQN prefix	str	no	target1
host	IP address to bind the target to. Empty string will auto-detect	str	no	auto
port	TCP port the target listens on	int	no	3260
remove_created_on_close	Automatically remove created files/directories when driver closes	bool	no	false

File Management

The iSCSI server driver automatically tracks disk image files and directories created during the session. By default, remove_created_on_close is set to false to preserve disk images that are typically reused across test sessions. Set to true if you want temporary disk images to be cleaned up automatically.

API Reference

.. autoclass:: jumpstarter_driver_iscsi.client.ISCSIServerClient()
    :members: start, stop, get_host, get_port, get_target_iqn, add_lun, remove_lun, list_luns, upload_image