Ironic in Kolla

Ironic in Kolla

Overview

Ironic works well in Kolla, though it is not currently tested as part of Kolla CI, so may be subject to instability.

Pre-deployment Configuration

Enable Ironic in /etc/kolla/globals.yml:

enable_ironic: "yes"

In the same file, define a range of IP addresses that will be available for use by Ironic inspector, as well as a network to be used for the Ironic cleaning network:

ironic_dnsmasq_dhcp_range: "192.168.5.100,192.168.5.110"
ironic_cleaning_network: "public1"

In the same file, specify the PXE bootloader file for Ironic Inspector. The file is relative to the /tftpboot directory. The default is pxelinux.0, and should be correct for x86 systems. Other platforms may require a different value, for example aarch64 on Debian requires debian-installer/arm64/bootnetaa64.efi.

ironic_dnsmasq_boot_file: pxelinux.0

Ironic inspector also requires a deploy kernel and ramdisk to be placed in /etc/kolla/config/ironic/. The following example uses coreos which is commonly used in Ironic deployments, though any compatible kernel/ramdisk may be used:

$ curl https://tarballs.openstack.org/ironic-python-agent/coreos/files/coreos_production_pxe.vmlinuz \
  -o /etc/kolla/config/ironic/ironic-agent.kernel

$ curl https://tarballs.openstack.org/ironic-python-agent/coreos/files/coreos_production_pxe_image-oem.cpio.gz \
  -o /etc/kolla/config/ironic/ironic-agent.initramfs

Deployment

Run the deploy as usual:

$ kolla-ansible deploy

Post-deployment configuration

A script named init-runonce is supplied as part of kolla-ansible to initialise the cloud with some defaults (only to be used for demo purposes):

tools/init-runonce

Add the deploy kernel and ramdisk to Glance. Here we’re reusing the same images that were fetched for the Inspector:

openstack image create --disk-format aki --container-format aki --public \
  --file /etc/kolla/config/ironic/ironic-agent.kernel deploy-vmlinuz

openstack image create --disk-format ari --container-format ari --public \
  --file /etc/kolla/config/ironic/ironic-agent.initramfs deploy-initrd

Create a baremetal flavor:

openstack flavor create --ram 512 --disk 1 --vcpus 1 my-baremetal-flavor
openstack flavor set my-baremetal-flavor --property \
  resources:CUSTOM_BAREMETAL_RESOURCE_CLASS=1

Create the baremetal node and associate a port. (Ensure to substitute correct values for the kernel, ramdisk, and MAC address for your baremetal node)

openstack baremetal node create --driver ipmi --name baremetal-node \
  --driver-info ipmi_port=6230 --driver-info ipmi_username=admin \
  --driver-info ipmi_password=password \
  --driver-info ipmi_address=192.168.5.1 \
  --resource-class baremetal-resource-class --property cpus=1 \
  --property memory_mb=512 --property local_gb=1 \
  --property cpu_arch=x86_64 \
  --driver-info deploy_kernel=15f3c95f-d778-43ad-8e3e-9357be09ca3d \
  --driver-info deploy_ramdisk=9b1e1ced-d84d-440a-b681-39c216f24121

openstack baremetal port create 52:54:00:ff:15:55 --node 57aa574a-5fea-4468-afcf-e2551d464412

Make the baremetal node available to nova:

openstack baremetal node manage 57aa574a-5fea-4468-afcf-e2551d464412
openstack baremetal node provide 57aa574a-5fea-4468-afcf-e2551d464412

It may take some time for the node to become available for scheduling in nova. Use the following commands to wait for the resources to become available:

openstack hypervisor stats show
openstack hypervisor show 57aa574a-5fea-4468-afcf-e2551d464412

Booting the baremetal

You can now use the following sample command to boot the baremetal instance:

openstack server create --image cirros --flavor my-baremetal-flavor \
  --key-name mykey --network public1 demo1

Notes

Debugging DHCP

The following tcpdump command can be useful when debugging why dhcp requests may not be hitting various pieces of the process:

tcpdump -i <interface> port 67 or port 68 or port 69 -e -n

Configuring the Web Console

Configuration based off upstream Node web console.

Serial speed must be the same as the serial configuration in the BIOS settings. Default value: 115200bps, 8bit, non-parity.If you have different serial speed.

Set ironic_console_serial_speed in /etc/kolla/globals.yml:

ironic_console_serial_speed: 9600n8

Deploying using virtual baremetal (vbmc + libvirt)

See https://brk3.github.io/post/kolla-ironic-libvirt/

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