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Fuel Agent driver for Ironic

ironic-fa-deploy package adds support of Fuel Agent to OpenStack Ironic. Ironic¹ is baremetal provisioning service with support of multiple hardware types. Ironic architecture is able to work with deploy agents. Deploy agent is a service that does provisioning tasks on the node side. Deploy agent should be integrated into bootstrap ramdisk image. ironic-fa-deploy contains pluggable drivers code for Ironic that uses Fuel Agent as deploy agent. Current implementation requires and tested with Ironic Liberty release. There are two drivers: fuel_ipmitool and fuel_ssh. fuel_ipmitool uses "ipmitool" utility for node power control and management via standard Ironic interfaces and Fuel Agent via Ironic deploy driver's interface. fuel_ssh intended for virtual developers' environments.

Node enrollment process with Fuel Agent

fuel_ipmitool driver used in example.

Enable the driver, add fuel_ipmitool to the list of enabled_drivers in [DEFAULT] section of /etc/ironic/ironic.conf.
Generate RSA key pair for SSH access to bootstrap system on the node.
Create bootstrap files with Fuel Agent via fuel-bootstrap-image-builder script from fuel-main² project, public key should be injected into bootstrap system. We should obtain three files as result: kernel, initrd image and root FS image.
Upload kernel, initrd image and root FS image to the Glance image service.

Note

Fuel Agent driver requires OpenStack Swift or Ceph RADOS Gateway as Glance backend.

Create a node in Ironic with fuel_ipmitool driver and associate port with the node:

ironic node-create -d fuel_ipmitool

ironic port-create -n <node uuid> -a <MAC address>

Set IPMI address and credentials as described in the Ironic documentation ³.

Set Fuel Agent related driver's parameters for the node:

ironic node-update <node uuid> add driver_info/deploy_kernel=KERNEL \
       driver_info/deploy_ramdisk=INITRD \
       driver_info/deploy_squashfs=ROOTFS \
       driver_info/fuel_key_filename=PRIVATE_KEY

Replace KERNEL, INITRD, ROOTFS with Glance UUIDs of deploy images, PRIVATE_KEY with path to private key file.

Place disks scheme in Nailgun format to the metadata of Glance instance image with mos_disk_info key, example:

glance image-update <image uuid> --property mos_disk_info='[{"name": "sda",
   "extra": [], "free_space": 11000, "type": "disk", "id": "vda",
   "size": 11000, "volumes": [{"mount": "/", "type": "partition",
   "file_system": "ext4", "size": 10000}]}]'

After steps above the node is ready for deploying. User can invoke nova boot command for deploying an instance image.

TODO:

Add custom boot interface and refactor the drivers code with boot interface⁴.
Add cleaning support.
Add RAID support via Ironic RAID interface.

3.2 KiB Raw Blame History

Fuel Agent driver for Ironic

Node enrollment process with Fuel Agent

3.2 KiB

Raw Blame History