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=====================================
Ironic Boot-from-Volume with DevStack
=====================================
This guide shows how to setup DevStack for enabling boot-from-volume feature,
which has been supported from the Pike release.
This scenario shows how to setup DevStack to enable nodes to boot from volumes
managed by cinder with VMs as baremetal servers.
DevStack Configuration
======================
The following is ``local.conf`` that will setup DevStack with 3 VMs that are
registered in ironic. A volume connector with IQN is created for each node.
These connectors can be used to connect volumes created by cinder. The detailed
description for DevStack is at :ref:`deploy_devstack`.
::
[[local|localrc]]
enable_plugin ironic https://git.openstack.org/openstack/ironic
IRONIC_STORAGE_INTERFACE=cinder
# Credentials
ADMIN_PASSWORD=password
DATABASE_PASSWORD=password
RABBIT_PASSWORD=password
SERVICE_PASSWORD=password
SERVICE_TOKEN=password
SWIFT_HASH=password
SWIFT_TEMPURL_KEY=password
# Enable Neutron which is required by Ironic and disable nova-network.
disable_service n-net
disable_service n-novnc
enable_service q-svc
enable_service q-agt
enable_service q-dhcp
enable_service q-l3
enable_service q-meta
enable_service neutron
# Enable Swift for agent_* drivers
enable_service s-proxy
enable_service s-object
enable_service s-container
enable_service s-account
# Disable Horizon
disable_service horizon
# Disable Heat
disable_service heat h-api h-api-cfn h-api-cw h-eng
# Swift temp URL's are required for agent_* drivers.
SWIFT_ENABLE_TEMPURLS=True
# Create 3 virtual machines to pose as Ironic's baremetal nodes.
IRONIC_VM_COUNT=3
IRONIC_BAREMETAL_BASIC_OPS=True
DEFAULT_INSTANCE_TYPE=baremetal
# Enable Ironic drivers.
IRONIC_ENABLED_DRIVERS=fake,agent_ipmitool,pxe_ipmitool
# Change this to alter the default driver for nodes created by devstack.
# This driver should be in the enabled list above.
IRONIC_DEPLOY_DRIVER=agent_ipmitool
# The parameters below represent the minimum possible values to create
# functional nodes.
IRONIC_VM_SPECS_RAM=1280
IRONIC_VM_SPECS_DISK=10
# Size of the ephemeral partition in GB. Use 0 for no ephemeral partition.
IRONIC_VM_EPHEMERAL_DISK=0
# To build your own IPA ramdisk from source, set this to True
IRONIC_BUILD_DEPLOY_RAMDISK=False
VIRT_DRIVER=ironic
# By default, DevStack creates a 10.0.0.0/24 network for instances.
# If this overlaps with the hosts network, you may adjust with the
# following.
NETWORK_GATEWAY=10.1.0.1
FIXED_RANGE=10.1.0.0/24
FIXED_NETWORK_SIZE=256
# Log all output to files
LOGFILE=$HOME/devstack.log
LOGDIR=$HOME/logs
IRONIC_VM_LOG_DIR=$HOME/ironic-bm-logs
After the environment is built, you can create a volume with cinder and request
an instance with the volume to nova::
source ~/devstack/openrc
# query the image id of the default cirros image
image=$(openstack image show $DEFAULT_IMAGE_NAME -f value -c id)
# create keypair
ssh-keygen
openstack keypair create --public-key ~/.ssh/id_rsa.pub default
# create volume
volume=$(openstack volume create --image $image --size 1 my-volume -f value -c id)
# spawn instance
openstack server create --flavor baremetal --volume $volume --key-name default testing
You can also run an integration test that an instance is booted from a remote
volume with tempest in the environment::
cd /opt/stack/tempest
tox -e all-plugin -- ironic_tempest_plugin.tests.scenario.test_baremetal_boot_from_volume
|
