Add DiB variables to allow platform architecture choice

.github/workflows/overcloud-host-image-build.yml

@@ -18,6 +18,13 @@ on:
         options:
           - SMS Lab
           - Leafcloud
+      cpu-platform-architecture:
+        description: Select the image's build architecture
+        type: choice
+        default: x86_64
+        options:
+          - x86_64
+          - aarch64
     secrets:
       KAYOBE_VAULT_PASSWORD:
         required: true
@@ -32,6 +39,8 @@ env:
   ANSIBLE_FORCE_COLOR: True
   KAYOBE_ENVIRONMENT: ci-builder
   KAYOBE_VAULT_PASSWORD: ${{ secrets.KAYOBE_VAULT_PASSWORD }}
+  overcloud_dib_architecture: ${{ inputs.cpu-platform-architecture == 'x86_64' && 'amd64' || 'arm64' }}
+  pulp_artifact_type: ${{ inputs.cpu-platform-architecture == 'x86_64' && 'kayobe-images' || 'kayobe-images/aarch64' }}
 jobs:
   runner-selection:
     uses: ./.github/workflows/runner-selector.yml
@@ -212,7 +221,7 @@ jobs:
           source venvs/kayobe/bin/activate &&
           source src/kayobe-config/kayobe-env --environment ci-builder &&
           kayobe seed host command run \
-          --command "sudo apt update && sudo apt -y install gcc git libffi-dev python3-dev python-is-python3 python3-venv containerd docker.io docker-buildx" --show-output
+          --command "sudo apt update && sudo apt -y install gcc git libffi-dev python3-dev python-is-python3 python3-venv containerd docker.io docker-buildx qemu-user-static" --show-output
         env:
           KAYOBE_VAULT_PASSWORD: ${{ secrets.KAYOBE_VAULT_PASSWORD }}
 
@@ -256,7 +265,7 @@ jobs:
           src/kayobe-config/etc/kayobe/ansible/pulp-artifact-upload.yml \
           -e artifact_path=/opt/kayobe/images/overcloud-rocky-9 \
           -e artifact_tag=${{ steps.host_image_tag.outputs.host_image_tag }} \
-          -e artifact_type="kayobe-images" \
+          -e artifact_type=${{ env.pulp_artifact_type }} \
           -e file_regex="*.qcow2" \
           -e os_distribution="rocky" \
           -e os_release="9"
@@ -271,7 +280,8 @@ jobs:
           kayobe playbook run \
           src/kayobe-config/etc/kayobe/ansible/openstack-host-image-upload.yml \
           -e local_image_path="/opt/kayobe/images/overcloud-rocky-9/overcloud-rocky-9.qcow2" \
-          -e image_name=overcloud-rocky-9-${{ steps.host_image_tag.outputs.host_image_tag }}
+          -e image_name=overcloud-rocky-9-${{ steps.host_image_tag.outputs.host_image_tag }} \
+          -e cpu_platform=${{ env.overcloud_dib_architecture }}
         env:
           CLOUDS_YAML: ${{ secrets.CLOUDS_YAML }}
           OS_APPLICATION_CREDENTIAL_ID: ${{ secrets.OS_APPLICATION_CREDENTIAL_ID }}
@@ -285,7 +295,8 @@ jobs:
           kayobe playbook run \
           src/kayobe-config/etc/kayobe/ansible/openstack-host-image-upload.yml \
           -e local_image_path="/opt/kayobe/images/overcloud-rocky-9/overcloud-rocky-9.qcow2" \
-          -e image_name=overcloud-rocky-9-${{ steps.host_image_tag.outputs.host_image_tag }}
+          -e image_name=overcloud-rocky-9-${{ steps.host_image_tag.outputs.host_image_tag }} \
+          -e cpu_platform=${{ env.overcloud_dib_architecture }}
         env:
           CLOUDS_YAML: ${{ secrets.CLOUDS_YAML_OTHER_CLOUD }}
           OS_APPLICATION_CREDENTIAL_ID: ${{ secrets.OS_APPLICATION_CREDENTIAL_ID_OTHER_CLOUD }}
@@ -324,7 +335,7 @@ jobs:
           src/kayobe-config/etc/kayobe/ansible/pulp-artifact-upload.yml \
           -e artifact_path=/opt/kayobe/images/overcloud-ubuntu-noble \
           -e artifact_tag=${{ steps.host_image_tag.outputs.host_image_tag }} \
-          -e artifact_type="kayobe-images" \
+          -e artifact_type=${{ env.pulp_artifact_type }} \
           -e file_regex="*.qcow2" \
           -e os_distribution="ubuntu" \
           -e os_release="noble"
@@ -339,7 +350,8 @@ jobs:
           kayobe playbook run \
           src/kayobe-config/etc/kayobe/ansible/openstack-host-image-upload.yml \
           -e local_image_path="/opt/kayobe/images/overcloud-ubuntu-noble/overcloud-ubuntu-noble.qcow2" \
-          -e image_name=overcloud-ubuntu-noble-${{ steps.host_image_tag.outputs.host_image_tag }}
+          -e image_name=overcloud-ubuntu-noble-${{ steps.host_image_tag.outputs.host_image_tag }} \
+          -e cpu_platform=${{ env.overcloud_dib_architecture }}
         env:
           CLOUDS_YAML: ${{ secrets.CLOUDS_YAML }}
           OS_APPLICATION_CREDENTIAL_ID: ${{ secrets.OS_APPLICATION_CREDENTIAL_ID }}
@@ -353,7 +365,8 @@ jobs:
           kayobe playbook run \
           src/kayobe-config/etc/kayobe/ansible/openstack-host-image-upload.yml \
           -e local_image_path="/opt/kayobe/images/overcloud-ubuntu-noble/overcloud-ubuntu-noble.qcow2" \
-          -e image_name=overcloud-ubuntu-noble-${{ steps.host_image_tag.outputs.host_image_tag }}
+          -e image_name=overcloud-ubuntu-noble-${{ steps.host_image_tag.outputs.host_image_tag }} \
+          -e cpu_platform=${{ env.overcloud_dib_architecture }}          
         env:
           CLOUDS_YAML: ${{ secrets.CLOUDS_YAML_OTHER_CLOUD }}
           OS_APPLICATION_CREDENTIAL_ID: ${{ secrets.OS_APPLICATION_CREDENTIAL_ID_OTHER_CLOUD }}

etc/kayobe/ansible/openstack-host-image-upload.yml

@@ -6,7 +6,7 @@
   hosts: seed
   vars:
     local_image_path: /opt/kayobe/images/overcloud-{{ os_distribution }}-{{ os_release }}/overcloud-{{ os_distribution }}-{{ os_release }}.qcow2
-    image_name: overcloud-{{ os_distribution }}-{{ os_release }}
+    image_name: overcloud-{{ os_distribution }}-{{ os_release }}-{{ cpu_platform }}
   tasks:
     - name: Upload image to Glance
       block:

etc/kayobe/kolla.yml

@@ -62,10 +62,16 @@ kolla_ansible_source_version: "{{ stackhpc_kolla_ansible_source_version }}"
 ###############################################################################
 # Kolla configuration.
 
+
 # Kolla base container image architecture. Options are "x86_64", "aarch64".
 # Default is "{{ ansible_facts.architecture }}"
 # NOTE(bbezak): evaluating this var locally for non facts gathering playbooks
-kolla_base_arch: "{{ 'aarch64' if lookup('pipe','uname -m') in ['aarch64','arm64'] else 'x86_64' }}"
+kolla_base_arch: >-
+  {{
+    'aarch64' if (stackhpc_cpu_arch_override is defined and stackhpc_cpu_arch_override | length > 0 and stackhpc_cpu_arch_override == 'arm64')
+    else (stackhpc_cpu_arch_override if (stackhpc_cpu_arch_override is defined and stackhpc_cpu_arch_override | length > 0)
+    else ('aarch64' if lookup('pipe','uname -m') in ['aarch64','arm64'] else 'x86_64'))
+  }}
 
 # Kolla base container image distribution. Options are "centos", "debian",
 # "rocky", "ubuntu". Default is {{ os_distribution }}.

etc/kayobe/overcloud-dib.yml

@@ -66,6 +66,9 @@ overcloud_dib_host_packages_extra:
 # elements. See stackhpc.openstack.os_images role for usage. Default is empty.
 overcloud_dib_git_elements_extra: "{{ stackhpc_dib_image_elements_repos }}"
 
+# Selects the architecture of the overcloud host image being built.
+overcloud_dib_architecture: "{{ 'amd64' if stackhpc_cpu_arch == 'x86_64' else 'arm64' }}"
+
 # List of git repositories containing Diskimage Builder (DIB) elements. See
 # stackhpc.openstack.os_images role for usage. Default is a combination of
 # overcloud_dib_git_elements_default and overcloud_dib_git_elements_extra.

etc/kayobe/stackhpc-overcloud-dib.yml

@@ -15,6 +15,7 @@ stackhpc_overcloud_dib_host_image:
   elements: "{{ stackhpc_overcloud_dib_elements }}"
   env: "{{ stackhpc_overcloud_dib_env_vars }}"
   packages: "{{ stackhpc_overcloud_dib_packages }}"
+  architecture: "{{ overcloud_dib_architecture }}"
 
 # StackHPC overcloud DIB image name.
 stackhpc_overcloud_dib_name: "deployment_image"
@@ -55,6 +56,7 @@ stackhpc_overcloud_dib_env_vars_default:
   YUM: dnf
   # Workaround for stack user home ownership bug
   DIB_IMAGE_CACHE: "/tmp/yum"
+  DIB_CONTAINERFILE_BUILDOPTS: "--platform linux/{{ overcloud_dib_architecture }}"
 
 stackhpc_overcloud_dib_env_vars_ark:
   DIB_CONTAINERFILE_BUILDOPTS: >-
@@ -63,25 +65,34 @@ stackhpc_overcloud_dib_env_vars_ark:
   DIB_DISTRIBUTION_MIRROR: "{{ stackhpc_repo_ubuntu_noble_url if os_distribution == 'ubuntu' else '' }}"
 
 # StackHPC overcloud DIB image packages.
-stackhpc_overcloud_dib_packages:
-  - "ethtool"
-  - "git"
-  - "less"
-  - "logrotate"
-  - "net-tools"
-  - "nvme-cli"
-  - "pciutils"
-  - "python3"
-  - "smartmontools"
-  - "vim"
-  - "{% if os_distribution == 'ubuntu' %}netbase{% endif %}"
-  - "{% if os_distribution == 'ubuntu' %}iputils-ping{% endif %}"
-  - "{% if os_distribution == 'ubuntu' %}curl{% endif %}"
-  - "{% if os_distribution == 'ubuntu' %}apt-utils{% endif %}"
-  - "{% if os_distribution == 'rocky' %}NetworkManager-config-server{% endif %}"
-  - "{% if os_distribution == 'rocky' %}linux-firmware{% endif %}"
-  - "{% if os_distribution == 'rocky' %}cloud-utils-growpart{% endif %}"
-  - "{% if os_distribution == 'ubuntu' %}cloud-guest-utils{% endif %}"
+stackhpc_overcloud_dib_packages_common:
+  - ethtool
+  - git
+  - less
+  - logrotate
+  - net-tools
+  - nvme-cli
+  - pciutils
+  - python3
+  - smartmontools
+  - vim
+
+stackhpc_overcloud_dib_packages_ubuntu:
+  - netbase
+  - iputils-ping
+  - curl
+  - apt-utils
+  - cloud-guest-utils
+
+stackhpc_overcloud_dib_packages_rocky:
+  - NetworkManager-config-server
+  - linux-firmware
+  - cloud-utils-growpart
+
+stackhpc_overcloud_dib_packages: >-
+  {{ stackhpc_overcloud_dib_packages_common +
+     (stackhpc_overcloud_dib_packages_ubuntu if os_distribution == 'ubuntu' else []) +
+     (stackhpc_overcloud_dib_packages_rocky if os_distribution == 'rocky' else []) }}
 
 # StackHPC overcloud DIB image block device configuration.
 # This image layout conforms to the CIS partition benchmarks.

etc/kayobe/stackhpc-overcloud-host-images.yml

@@ -11,6 +11,7 @@ stackhpc_build_overcloud_image_from_pulp_package_mirrors: false
 # The overcloud host image source, defined by os_distribution, os_release,
 # and the current stable version.
 stackhpc_overcloud_host_image_url: "{{ stackhpc_release_pulp_content_url_with_auth }}/kayobe-images/\
+                                    {{ 'aarch64/' if stackhpc_cpu_arch == 'arm64' else '' }}\
                                     {{ openstack_release }}/{{ os_distribution }}/{{ os_release }}/\
                                     {{ stackhpc_overcloud_host_image_version }}/\
                                     overcloud-{{ os_distribution }}-{{ os_release }}.qcow2"

etc/kayobe/stackhpc.yml

@@ -27,6 +27,15 @@ stackhpc_include_os_minor_version_in_repo_url: false
 
 stackhpc_rocky_9_url_version: "{{ '9.' + stackhpc_pulp_repo_rocky_9_minor_version | string if stackhpc_include_os_minor_version_in_repo_url | bool else '9' }}"
 
+# Pick build architecture for kolla and disk image builder
+# Choose between x86_64 or arm64. Leaving unset will default
+# to the local architecture.
+stackhpc_cpu_arch_override: ""
+
+# If the override variable hasnt been set above then both kolla_base_arch and
+# stackhpc_cpu_arch will default to the local architecture.
+stackhpc_cpu_arch: "{{ 'arm64' if kolla_base_arch == 'aarch64' else kolla_base_arch }}"
+
 ###############################################################################
 # Debs
 # Ubuntu noble