[ironic] expose default boot_option in configuration and change it to local

Ironic is going to change the default boot_option from netboot to local in the
near future. Let's be pro-active, and change it in advance. Users cano change
it back via new IronicDefaultBootOption configuration.

Partial-Bug: #1619339
Change-Id: Idddc2e384c6cd9a1595777090500bf04f230edd4

diff --git a/puppet/services/ironic-conductor.yaml b/puppet/services/ironic-conductor.yaml
index be910d1..8f2c060 100644 (file)
--- a/puppet/services/ironic-conductor.yaml
+++ b/puppet/services/ironic-conductor.yaml
@@ -32,6 +32,13 @@ parameters:
                  created yet) and should be changed to an actual UUID in
                  a post-deployment stack update.
     type: string
+  IronicDefaultBootOption:
+    default: 'local'
+    description: How to boot the bare metal instances. Set to 'local' (the
+                 default) to use local bootloader (requires grub2 for partition
+                 images). Set to 'netboot' to make the instances boot from
+                 controllers using PXE/iPXE.
+    type: string
   IronicDefaultNetworkInterface:
     default: 'flat'
     description: Network interface implementation to use by default.
@@ -91,6 +98,7 @@ outputs:
             ironic::conductor::cleaning_disk_erase: {get_param: IronicCleaningDiskErase}
             ironic::conductor::cleaning_network: {get_param: IronicCleaningNetwork}
             ironic::conductor::provisioning_network: {get_param: IronicProvisioningNetwork}
+            ironic::conductor::default_boot_option: {get_param: IronicDefaultBootOption}
             ironic::conductor::enabled_drivers: {get_param: IronicEnabledDrivers}
             # We need an endpoint containing a real IP, not a VIP here
             ironic_conductor_http_host: {get_param: [ServiceNetMap, IronicNetwork]}

diff --git a/releasenotes/notes/ironic-boot-option-3f3036aa5e82ec7e.yaml b/releasenotes/notes/ironic-boot-option-3f3036aa5e82ec7e.yaml
new file mode 100644 (file)
index 0000000..53191bd
--- /dev/null
+++ b/releasenotes/notes/ironic-boot-option-3f3036aa5e82ec7e.yaml
@@ -0,0 +1,12 @@
+---
+features:
+  - |
+    New configuration ``IronicDefaultBootOption`` allows to change the default
+    boot option to use for bare metal instances in the overcloud.
+upgrade:
+  - |
+    The default boot option for bare metal instances in overcloud was changed
+    to "local". This was already the default for whole-disk images, but for
+    partition images it requires ``grub2`` to be installed on them.
+    Use the new ``IronicDefaultBootOption`` configuration to override, or
+    set ``boot_option`` capability on nodes and flavors.