MDBF-1156: Add Ubuntu 26.04 to buildbot

LTS release as such contains 4 arches.

Also Ubuntu is performing amd64v3 builds
based on
https://discourse.ubuntu.com/t/introducing-architecture-variants-amd64v3-now-available-in-ubuntu-25-10/71312.
This has already thrown up errors on MDEV-38398.

To account for this, add a ubuntu:26.04v3 builder so
we've got something working for Ubuntu's release. Its
currently unclear if we'll be doing a v3 release.

Author: grooverdan

.github/workflows/bbw_build_container_template.yml

@@ -28,6 +28,9 @@ on:
       install_valgrind:
         required: false
         type: string
+      arch_variant:
+        required: false
+        type: string
       files:
         required: false
         type: string
@@ -142,7 +145,8 @@ jobs:
               --build-arg BASE_IMAGE=${{ inputs.image }} \
               --build-arg CLANG_VERSION=${{ inputs.clang_version }} \
               --build-arg MARIADB_BRANCH=${{ inputs.branch }} \
-              --build-arg INSTALL_VALGRIND="${{ inputs.install_valgrind }}"
+              --build-arg INSTALL_VALGRIND="${{ inputs.install_valgrind }}" \
+              --build-arg ARCH_VARIANT="${{ inputs.arch_variant }}"
           done
           podman images
 

.github/workflows/build-debian-based.yml

@@ -99,6 +99,18 @@ jobs:
             branch: 11.8
             nogalera: false
 
+          - image: ubuntu:26.04
+            platforms: linux/amd64, linux/arm64/v8, linux/ppc64le, linux/s390x
+            branch: 11.8
+            nogalera: true
+
+          - image: ubuntu:26.04
+            tag: ubuntu:26.04v3
+            platforms: linux/amd64
+            branch: 11.8
+            nogalera: true
+            arch_variant: amd64v3
+
     uses: ./.github/workflows/bbw_build_container_template.yml
     with:
       dockerfile: ${{ matrix.dockerfile || 'debian.Dockerfile' }}
@@ -107,6 +119,7 @@ jobs:
       tag: ${{ matrix.tag }}
       branch: ${{ matrix.branch }}
       nogalera: ${{ matrix.nogalera }}
+      arch_variant: ${{ matrix.arch_variant }}
       is_scheduled_event: ${{ inputs.is_scheduled_event || false }}
       deploy_on_schedule: ${{ matrix.deploy_on_schedule || false }}
     secrets: inherit

ci_build_images/debian.Dockerfile

@@ -23,9 +23,14 @@ RUN . /etc/os-release \
       exit 1; \
     fi
 
+ARG ARCH_VARIANT=
+ENV ARCH_VARIANT=$ARCH_VARIANT
 # Install updates and required packages
 # see: https://cryptography.io/en/latest/installation/
 RUN . /etc/os-release \
+    && if [ -n "$ARCH_VARIANT" ]; then \
+         echo "APT::Architecture-Variants \"$ARCH_VARIANT\";" > /etc/apt/apt.conf.d/99enable-$ARCH_VARIANT; \
+       fi \
     && apt-get update \
     && apt-get -y upgrade \
     && apt-get -y install --no-install-recommends \

constants.py

@@ -227,6 +227,11 @@
     "amd64-ubuntu-2510",
     "aarch64-fedora-43",
     "amd64-fedora-43",
+    "aarch64-ubuntu-2604",
+    "amd64-ubuntu-2604",
+    "amd64v3-ubuntu-2604-deb-autobake-migration",
+    "ppc64le-ubuntu-2604",
+    "s390x-ubuntu-2604",
 ]
 SUPPORTED_PLATFORMS["12.0"] = SUPPORTED_PLATFORMS["11.8"].copy()
 SUPPORTED_PLATFORMS["12.1"] = SUPPORTED_PLATFORMS["12.0"].copy()

master-migration/master.cfg

@@ -87,6 +87,11 @@ c["builders"] = [
         image="debian12",
         worker_pool=DEFAULT_AMD64_WORKER_POOL,
     ),
+    deb_release_builder(
+        name="amd64v3-ubuntu-2604-deb-autobake-migration",
+        image="ubuntu2604v3",
+        worker_pool=DEFAULT_AMD64_WORKER_POOL,
+    ),
 ]
 
 ## ------------------------------------------------------------------- ##

master-web/templates/home.jade

@@ -73,7 +73,7 @@
               li
                 | Debian 11, 12, 13 and Sid
               li
-                | Ubuntu 22.04, 24.04, 25.04 and 25.10
+                | Ubuntu 22.04, 24.04, 25.04, 25.10 and 26.04
               li
                 | Fedora 41 and 42
               li

os_info.yaml

@@ -240,3 +240,13 @@ ubuntu-2510:
     - amd64
     - aarch64
   type: deb
+ubuntu-2604:
+  image_tag: ubuntu26.04
+  tags:
+    - release_packages
+  arch:
+    - amd64
+    - aarch64
+    - ppc64le
+    - s390x
+  type: deb