When a image is recreated (updated) and the node needs to be redeployed via 'heat stack-update', it fails. The error shows that the ironic node is still refering to the old image. This should be updated to use the new one. (image_source)
root@undercloud-undercloud-dudmy7r74vmg:/mnt/state/var/lib/mysql# ironic node-show 1194694b-5657-4f4d-9456-8ebc2a98bee2
+------------------------+--------------------------------------------------------------------+
| Property | Value |
+------------------------+--------------------------------------------------------------------+
| instance_uuid | dd5f0437-1f77-471f-b24b-e1d6c1dfc41c |
| target_power_state | None |
| properties | {u'memory_mb': u'4096', u'cpu_arch': u'amd64', u'local_gb': u'20', |
| | u'cpus': u'2'} |
| maintenance | False |
| driver_info | {u'pxe_deploy_ramdisk': u'644d7835-152e-4206-b2bc-6e54f8e71201', |
| | u'pxe_deploy_kernel': u'696a2fa5-8b3e-4ff7-bed5-15dd8b109069', |
| | u'ssh_username': u'ghe', u'ssh_key_filename': |
| | u'/mnt/state/var/lib/ironic/virtual-power-key', u'ssh_address': |
| | u'192.168.122.1', u'ssh_virt_type': u'virsh'} |
| extra | {} |
| last_error | None |
| created_at | 2014-06-26T22:33:04+00:00 |
| target_provision_state | None |
| driver | pxe_ssh |
| updated_at | 2014-06-27T00:11:04+00:00 |
| instance_info | {u'ramdisk': u'397b7985-df56-4487-ac39-139b11481193', u'kernel': |
| | u'63a95d97-af73-42ab-a4e8-d7531d74def3', u'root_gb': u'10', |
| | u'image_source': u'fa8d3f4b-c8ac-422a-9989-3477a5ef8080', |
| | u'ephemeral_format': u'ext4', u'ephemeral_gb': u'10', |
| | u'preserve_ephemeral': u'True', u'deploy_key': |
| | u'TUZEAXCR6AUUFD3RC2RPHERBZTYRM9LI', u'swap_mb': u'0'} |
| chassis_uuid | None |
| provision_state | active |
| reservation | None |
| power_state | power on |
| console_enabled | False |
| uuid | 1194694b-5657-4f4d-9456-8ebc2a98bee2 |
+------------------------+--------------------------------------------------------------------+
root@undercloud-undercloud-dudmy7r74vmg:/mnt/state/var/lib/mysql# nova show dd5f0437-1f77-471f-b24b-e1d6c1dfc41c
| fault | {"message": "Failed to request Ironic to rebuild instance dd5f0437-1f77-471f-b24b-e1d6c1dfc41c: RPC do_node_deploy failed to validate deploy info. Error: Image fa8d3f4b-c8ac-422a-9989-3477a5ef8080 is missing the following properties: kernel_id, ramdisk_id (HTTP 500)", "code": 400, "created": "2014-06-26T23:42:59Z"} |
root@undercloud-undercloud-dudmy7r74vmg:/mnt/state/var/lib/mysql# glance image-show fa8d3f4b-c8ac-422a-9989-3477a5ef8080
+------------------+--------------------------------------+
| Property | Value |
+------------------+--------------------------------------+
| checksum | 8dfad757e3ad9fb6cc7df2776a0a3cff |
| container_format | bare |
| created_at | 2014-06-26T22:42:07 |
| deleted | True |
| deleted_at | 2014-06-26T23:39:14 |
| disk_format | qcow2 |
| id | fa8d3f4b-c8ac-422a-9989-3477a5ef8080 |
| is_public | True |
| min_disk | 0 |
| min_ram | 0 |
| name | overcloud-control |
| owner | 88e6e44de1a94da5ba84773ec99311c5 |
| protected | False |
| size | 1287204352 |
| status | deleted |
| updated_at | 2014-06-26T23:39:14 |
+------------------+--------------------------------------+
root@undercloud-undercloud-dudmy7r74vmg:/mnt/state/var/lib/mysql# glance image-show overcloud-control
+-----------------------+--------------------------------------+
| Property | Value |
+-----------------------+--------------------------------------+
| Property 'kernel_id' | 145efc1a-f4e2-4f05-a895-feadebb7d943 |
| Property 'ramdisk_id' | 704c76ad-cfd4-47c8-901c-661816b5f530 |
| checksum | a68a48d573d892d323c6723b2301d2ab |
| container_format | bare |
| created_at | 2014-06-26T23:39:16 |
| deleted | False |
| disk_format | qcow2 |
| id | 8b570f64-2f90-4595-ae5f-82ee41147ebd |
| is_public | True |
| min_disk | 0 |
| min_ram | 0 |
| name | overcloud-control |
| owner | 88e6e44de1a94da5ba84773ec99311c5 |
| protected | False |
| size | 1287696896 |
| status | active |
| updated_at | 2014-06-26T23:39:20 |
+-----------------------+--------------------------------------+
A possible solution could be to test if the image is in state deleted, and update the image_source based in the name.
TripleO + heat were used to produce the original bug. Before rebuild, the original image is deleted hence the validation failing during re-deployment. But the bug is more fundamental, the current rebulid code only updates the preserve_ephemeral flag, leaving image related driver fields untouched. The rebuilt server ends up rebuilding (or attempting to) with the original image information, regardless of what user image (if any) was passed during nova rebuild.