a47afb843b
This change adds new overrides and an OSH patch to provision nova-compute pods with their respective hosts' UUID. Before this change, Nova was attributing a newly generated UUID for each nova-compute pod, accordingly to the documentation [1]. To do this, we added a method in Nova's plugin that retrieves all the hostnames and UUIDs and inject them via overrides into Nova's Helm chart. The nova-compute-init script was then modified to search the current host's UUID and save it in the compute_id file in the state_path directory. References: [1] https://docs.openstack.org/nova/latest/admin/compute-node-identification.html Test Plan: - PASS: build openstack-helm package - PASS: build python3-k8aspp-openstack package - PASS: generate application tarball - PASS: apply the application in a virtual deployment environment - PASS: check if the compute_id file is created with the correct UUID - PASS: check if the correct UUID is registered in the database - PASS: repeat the test in a lab with a couple of compute nodes - PASS: lock, reinstall and unlock one of the compute nodes and check if nova pods are running again, with the same UUID Closes-Bug: 2117400 Change-Id: I4eb2e43b3465d1f92f9cc8ebf40018998fc054a8 Signed-off-by: Joao Fracarolli <joao.vicentinifracarolli@windriver.com>
69 lines
2.4 KiB
Diff
69 lines
2.4 KiB
Diff
From e5561aef977b6d18ed06a773d04f0732efac590c Mon Sep 17 00:00:00 2001
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From: Joao Fracarolli <joao.vicentinifracarolli@windriver.com>
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Date: Fri, 11 Jul 2025 14:45:55 -0300
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Subject: [PATCH] Copy host UUID into Nova's config dir
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This patch adds some new fields in Nova's chart. The first one, 'hosts_uuids',
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contains a list of hosts and its respectives UUIDs. By default, this list
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is empty and is populated through system overrides.
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The second one is 'manifests.compute_uuid_self_provisioning',which is used
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to set self provisioning on or off. The default is 'true'.
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It also adds a code in nova-compute-init.sh script to copy the current
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host's UUID obtained via helm chart into the Nova's state_path
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directory, in order to ensure that Nova will always use the same
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UUID of the node it's running in. By doing this, we are provisioning
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the UUID, accordingly to [1].
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[1] https://docs.openstack.org/nova/latest/admin/compute-node-identification.html
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Signed-off-by: Joao Fracarolli <joao.vicentinifracarolli@windriver.com>
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---
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nova/templates/bin/_nova-compute-init.sh.tpl | 10 ++++++++++
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nova/values.yaml | 4 ++++
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2 files changed, 14 insertions(+)
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diff --git a/nova/templates/bin/_nova-compute-init.sh.tpl b/nova/templates/bin/_nova-compute-init.sh.tpl
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index 4bc71a393..5218d3707 100644
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--- a/nova/templates/bin/_nova-compute-init.sh.tpl
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+++ b/nova/templates/bin/_nova-compute-init.sh.tpl
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@@ -16,6 +16,16 @@ limitations under the License.
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set -ex
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+{{- if and .Values.hosts_uuids (not .Values.manifests.compute_uuid_self_provisioning) }}
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+# Extract Host's uuid from helm chart and save it to the compute_id file
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+ {{- range $host := .Values.hosts_uuids }}
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+hostname="{{- $host.name}}"
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+if [ "$hostname" == $HOSTNAME ]; then
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+ echo "{{ $host.uuid }}" > {{ $.Values.conf.nova.DEFAULT.state_path }}/compute_id
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+fi
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+ {{- end }}
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+{{- end }}
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+
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# Make the Nova Instances Dir as this is not autocreated.
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mkdir -p /var/lib/nova/instances
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diff --git a/nova/values.yaml b/nova/values.yaml
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index 621d52b95..08288dfc5 100644
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--- a/nova/values.yaml
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+++ b/nova/values.yaml
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@@ -2554,6 +2554,7 @@ tls:
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manifests:
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certificates: false
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+ compute_uuid_self_provisioning: true
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configmap_bin: true
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configmap_etc: true
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cron_job_cell_setup: true
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@@ -2602,4 +2603,7 @@ manifests:
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service_spiceproxy: true
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service_osapi: true
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statefulset_compute_ironic: false
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+
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+# List of hosts and uuids
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+hosts_uuids: []
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...
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--
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2.34.1
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