Difference between revisions of "Ironic/NovaBaremetalIronicMigration"
< Ironic
(→Nova Bare-metal to Ironic migration) |
(→Nova Bare-metal to Ironic migration) |
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** '''Remove''' the [baremetal] section ([[#Baremetal_section|Example]]) | ** '''Remove''' the [baremetal] section ([[#Baremetal_section|Example]]) | ||
* Update flavor metadata to reference Ironic's deploy kernel & ramdisk ([[#Update_flavor|Example]]) | * Update flavor metadata to reference Ironic's deploy kernel & ramdisk ([[#Update_flavor|Example]]) | ||
− | * Run ironic | + | * Run [[#https://github.com/openstack/ironic/blob/master/ironic/migrate_nova/migrate_db.py|migrate_db]] script ([[#Run_migrate_script|Example]]) |
* Start Ironic services ([[#Start_Ironic_services|Example]]) | * Start Ironic services ([[#Start_Ironic_services|Example]]) | ||
− | * Ensure proper service start-up | + | * Ensure proper service start-up ([[#Ensure_service_start-up|Example]]) |
* (Re)start Nova services ([[#Start_Nova_services|Example]]) | * (Re)start Nova services ([[#Start_Nova_services|Example]]) | ||
* End maintenance period | * End maintenance period | ||
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nova flavor-key baremetal set "baremetal:deploy_kernel_id"="$dkid" | nova flavor-key baremetal set "baremetal:deploy_kernel_id"="$dkid" | ||
nova flavor-key baremetal set "baremetal:deploy_ramdisk_id"="$drid" | nova flavor-key baremetal set "baremetal:deploy_ramdisk_id"="$drid" | ||
+ | ===== Run migrate script ===== | ||
+ | TBA | ||
===== Start Ironic services ===== | ===== Start Ironic services ===== | ||
sudo service ironic-api start | sudo service ironic-api start | ||
sudo service ironic-conductor start | sudo service ironic-conductor start | ||
+ | ===== Ensure service start-up ===== | ||
+ | TBA | ||
===== Start Nova services ===== | ===== Start Nova services ===== | ||
sudo service nova-compute start | sudo service nova-compute start | ||
sudo service nova-scheduler start | sudo service nova-scheduler start |
Revision as of 00:55, 11 September 2014
Contents
Nova Bare-metal to Ironic migration
Assumptions / Requirements
- Migration is only supported *within* Juno release
- Migrating live instances between virt drivers in Nova is not tested! It is NOT recommended.
- Migrating from Icehouse-baremetal -> Juno-ironic is not supported
- The nova-compute and nova-scheduler will need to be restarted
- Icehouse Nova deployed with:
- Nova "bare-metal" driver
- Populated nova_bm database
- Nova Juno release admin upgrades applied
- Deploy-ironic kernel and ramdisk built (DIB)
- Empty Ironic database exists
High Level Walk Through
- Start maintenance period (to prevent API service access for upgrade)
- Stop Nova services (Example)
- Update nova-compute configuration (nova.conf)
- Update flavor metadata to reference Ironic's deploy kernel & ramdisk (Example)
- Run migrate_db script (Example)
- Start Ironic services (Example)
- Ensure proper service start-up (Example)
- (Re)start Nova services (Example)
- End maintenance period
Detailed examples
Stop services
sudo service nova-compute stop sudo service nova-scheduler stop
Changes
compute_driver = nova.virt.ironic.IronicDriver scheduler_host_manager = nova.scheduler.ironic_host_manager.IronicHostManager
Ironic section
[ironic] admin_username = ironic admin_password = password admin_url = http://keystone.host:35357/v2.0 admin_tenant_name = service
Baremetal section
[Baremetal] sql_connection = db tftp_root = /tftpboot flavor_extra_specs = cpu_arch / arch driver = nova.virt.baremetal.pxe.PXE pxe_network_config=True pxe_deploy_timeout= pxe_deploy_timeout power_manager = power_manager virtual_power_host_user=user virtual_power_host_key=/mnt/state/var/lib/nova/virtual-power-key virtual_power_ssh_host=ssh_host virtual_power_type=type
Update flavor
dkid=$(glance image-create --name "deploy-ironic-kernel" --public --disk-format aki --file deploy-ironic.kernel | awk ' / id / {print $4}') drid=$(glance image-create --name "deploy-ironic-ramdisk" --public --disk-format ari --file deploy-ironic.initramfs | awk ' / id / {print $4}') nova flavor-key baremetal set "baremetal:deploy_kernel_id"="$dkid" nova flavor-key baremetal set "baremetal:deploy_ramdisk_id"="$drid"
Run migrate script
TBA
Start Ironic services
sudo service ironic-api start sudo service ironic-conductor start
Ensure service start-up
TBA
Start Nova services
sudo service nova-compute start sudo service nova-scheduler start