libvirt-provider 0.0.1a0

A corc plugin for a libvirt orchestration provider

A libvirt orchestration plugin for corc

Installation

pip install libvirt-provider

Dependencies

Before the libvirt-provider can be succesfully installed, the distribution associated dependency script in the devel_dep folder should be executed. This will install the nessesary library files that libvirt-provider require to function properly.

In addition, before an actual resource such as an instance or a container can be created by libvirt-provider, the required libvirt daemon has to be running on the system. This can be installed via the distribution installer scripts in the runtime_dep folder.

Usage

The libvirt-provider plugin can be used on its own to orchestrate libvirt resources. Currently it supports orchestrating virtual machines and containers. These resources can be orchestrated via the CLI interface:

$ libvirt-provider -h
usage: libvirt_provider [-h] {instance,container} ...

options:
-h, --help            show this help message and exit

COMMAND:
{instance,container}

For instance, to orchestrate an instance, the following command can be used:

$ usage: libvirt_provider instance create [-h]
[-dt INSTANCE_DOMAIN_TYPE] [-ddtype INSTANCE_DISK_DEVICE_TYPE] [-ddn INSTANCE_DISK_DRIVER_NAME]
[-ddt INSTANCE_DISK_DRIVER_TYPE] [-dtd INSTANCE_DISK_TARGET_DEV] [-dtb INSTANCE_DISK_TARGET_BUS]
[-memory INSTANCE_MEMORY_SIZE] [-vcpus INSTANCE_NUM_VCPUS] [-cpu-arch INSTANCE_CPU_ARCHITECTURE]
[-cpu-mode INSTANCE_CPU_MODE] [-mach INSTANCE_MACHINE] [-ct INSTANCE_CONSOLE_TYPE] [-st INSTANCE_SERIAL_TYPE]
[-sttp INSTANCE_SERIAL_TYPE_TARGET_PORT] [-tp INSTANCE_TEMPLATE_PATH]
name disk_image_path

optional arguments:
-h, --help            show this help message and exit

Instance create arguments:
name                  The name of the instance
disk_image_path       The path to the disk image
-dt INSTANCE_DOMAIN_TYPE, --domain-type INSTANCE_DOMAIN_TYPE
                        The domain type
-ddtype INSTANCE_DISK_DEVICE_TYPE, --disk-device-type INSTANCE_DISK_DEVICE_TYPE
                        The disk type
-ddn INSTANCE_DISK_DRIVER_NAME, --disk-driver-name INSTANCE_DISK_DRIVER_NAME
                        The disk driver name
-ddt INSTANCE_DISK_DRIVER_TYPE, --disk-driver-type INSTANCE_DISK_DRIVER_TYPE
                        The disk driver type
-dtd INSTANCE_DISK_TARGET_DEV, --disk-target-dev INSTANCE_DISK_TARGET_DEV
                        The disk target device
-dtb INSTANCE_DISK_TARGET_BUS, --disk-target-bus INSTANCE_DISK_TARGET_BUS
                        The disk target bus
-memory INSTANCE_MEMORY_SIZE, --memory-size INSTANCE_MEMORY_SIZE
                        The memory size of the instance, interpreted as KiB. Default is 1024MiB.
-vcpus INSTANCE_NUM_VCPUS, --num-vcpus INSTANCE_NUM_VCPUS
                        The number of virtual CPUs
-cpu-arch INSTANCE_CPU_ARCHITECTURE, --cpu-architecture INSTANCE_CPU_ARCHITECTURE
                        The CPU architecture
-cpu-mode INSTANCE_CPU_MODE, --cpu-mode INSTANCE_CPU_MODE
                        The CPU mode to be used when running the instance
-mach INSTANCE_MACHINE, --machine INSTANCE_MACHINE
                        The machine type
-ct INSTANCE_CONSOLE_TYPE, --console-type INSTANCE_CONSOLE_TYPE
                        The console type
-st INSTANCE_SERIAL_TYPE, --serial-type INSTANCE_SERIAL_TYPE
                        The serial type
-sttp INSTANCE_SERIAL_TYPE_TARGET_PORT, --serial-type-target-port INSTANCE_SERIAL_TYPE_TARGET_PORT
                        The serial type target port
-tp INSTANCE_TEMPLATE_PATH, --template-path INSTANCE_TEMPLATE_PATH
                        The path to the XML template that should be used to create the instance.

As indicated by the instance creation command, the libvirt-provider expects that a disk image file is provided as an argument:

$ libvirt-provider instance create <name> <disk-image-file>

The <disk-image-file> can either be prepared by downloading directly from one of the distribution repositories, or a prepared with a tool like our gen-vm-image before it is used to create an instance via libvirt-provider.

In turn, an orchestrated instance can be removed via the remove argument:

$ libvirt-provider instance remove <instance-id>

To discover the <instance-id> of a particular instance, the list argument can be used:

$ libvirt-provider instance ls
{
    "instances": [],
    "msg": "Instances",
    "status": "success"
}