Drop python 3.8 base image builds

Python 3.11 is coming up and running image builds for all the pythons
gets overwhelming fast. We end up with so many jobs that landing any one
change to our base images becomes difficult. To reduce the total count
we remove builds for 3.8 to make room for 3.11. Only a few things appear
to still be using the 3.8 images and their updates are all listed as
depends on below.

Depends-On: https://review.opendev.org/c/opendev/gerritbot/+/861474
Depends-On: https://review.opendev.org/c/opendev/grafyaml/+/861475
Depends-On: https://review.opendev.org/c/opendev/statusbot/+/861476
Depends-On: https://review.opendev.org/c/zuul/zuul-client/+/861477
Depends-On: https://review.opendev.org/c/zuul/zuul-operator/+/861478
Depends-On: https://review.opendev.org/c/zuul/zuul-registry/+/861479
Change-Id: Ifa44ed0586f54b7ee4d6e37ba32235d63a30addb

zuul.d/docker-images/python-3.8-bullseye.yaml

@@ -1,135 +0,0 @@
-# python-builder-3.8-bullseye jobs
-- job:
-    name: system-config-build-image-python-builder-3.8-bullseye
-    description: Build a python-builder-3.8-bullseye image.
-    parent: system-config-build-image
-    timeout: 3600
-    provides:
-      - python-builder-container-image
-      - python-builder-3.8-bullseye-container-image
-    vars: &python-builder_3_8_bullseye_vars
-      docker_images:
-        - context: docker/python-builder
-          repository: opendevorg/python-builder
-          tags:
-            - 3.8-bullseye
-          arch:
-            - linux/amd64
-            - linux/arm64
-          build_args:
-            - PYTHON_VERSION=3.8
-            - DEBIAN_VERSION=bullseye
-    files: &python-builder_3_8_bullseye_files
-      - docker/python-base/
-      - docker/python-builder/
-
-- job:
-    name: system-config-upload-image-python-builder-3.8-bullseye
-    description: Build and upload a python-builder-3.8-bullseye image.
-    parent: system-config-upload-image
-    timeout: 3600
-    provides:
-      - python-builder-container-image
-      - python-builder-3.8-bullseye-container-image
-    vars: *python-builder_3_8_bullseye_vars
-    files: *python-builder_3_8_bullseye_files
-
-- job:
-    name: system-config-promote-image-python-builder-3.8-bullseye
-    description: Promote a previously published python-builder-3.8-bullseye image to latest.
-    parent: system-config-promote-image
-    vars: *python-builder_3_8_bullseye_vars
-    files: *python-builder_3_8_bullseye_files
-
-- job:
-    name: system-config-build-image-python-base-3.8-bullseye
-    description: Build a python-base-3.8-bullseye image.
-    parent: system-config-build-image
-    timeout: 3600
-    provides:
-      - python-base-container-image
-      - python-base-3.8-container-image
-    vars: &python-base_3_8_bullseye_vars
-      docker_images:
-        - context: docker/python-base
-          repository: opendevorg/python-base
-          tags:
-            - 3.8-bullseye
-          arch:
-            - linux/amd64
-            - linux/arm64
-          build_args:
-            - PYTHON_VERSION=3.8
-            - DEBIAN_VERSION=bullseye
-    files: &python-base_3_8_bullseye_files
-      - docker/python-base/
-      - docker/python-builder/
-
-- job:
-    name: system-config-upload-image-python-base-3.8-bullseye
-    description: Build and upload a python-base-3.8-bullseye image.
-    parent: system-config-upload-image
-    timeout: 3600
-    provides: python-base-3.8-bullseye-container-image
-    vars: *python-base_3_8_bullseye_vars
-    files: *python-base_3_8_bullseye_files
-
-- job:
-    name: system-config-promote-image-python-base-3.8-bullseye
-    description: Promote a previously published python-base-3.8-bullseye image to latest.
-    parent: system-config-promote-image
-    vars: *python-base_3_8_bullseye_vars
-    files: *python-base_3_8_bullseye_files
-
-- job:
-    name: system-config-build-image-uwsgi-base-3.8-bullseye
-    description: Build a uwsgi-base-3.8-bullseye image.
-    parent: system-config-build-image
-    timeout: 3600
-    requires: &uwsgi-base_3_8_bullseye_requires
-      - python-base-3.8-bullseye-container-image
-      - python-builder-3.8-bullseye-container-image
-    provides: uwsgi-base-3.8-bullseye-container-image
-    dependencies:
-      - name: system-config-build-image-python-base-3.8-bullseye
-        soft: true
-      - name: system-config-build-image-python-builder-3.8-bullseye
-        soft: true
-    vars: &uwsgi-base_3_8_bullseye_vars
-      docker_images:
-        - context: docker/uwsgi-base
-          repository: opendevorg/uwsgi-base
-          tags:
-            - 3.8-bullseye
-          arch:
-            - linux/amd64
-            - linux/arm64
-          build_args:
-            - PYTHON_VERSION=3.8
-            - DEBIAN_VERSION=bullseye
-    files: &uwsgi-base_3_8_bullseye_files
-      - docker/python-base/.*
-      - docker/python-builder/.*
-      - docker/uwsgi-base/.*
-
-- job:
-    name: system-config-upload-image-uwsgi-base-3.8-bullseye
-    description: Build and upload a uwsgi-base-3.8-bullseye image.
-    parent: system-config-upload-image
-    timeout: 3600
-    provides: uwsgi-base-3.8-bullseye-container-image
-    requires: *uwsgi-base_3_8_bullseye_requires
-    dependencies:
-      - name: system-config-upload-image-python-base-3.8-bullseye
-        soft: true
-      - name: system-config-upload-image-python-builder-3.8-bullseye
-        soft: true
-    vars: *uwsgi-base_3_8_bullseye_vars
-    files: *uwsgi-base_3_8_bullseye_files
-
-- job:
-    name: system-config-promote-image-uwsgi-base-3.8-bullseye
-    description: Promote a previously published uwsgi-base-3.8-bullseye image to latest.
-    parent: system-config-promote-image
-    vars: *uwsgi-base_3_8_bullseye_vars
-    files: *uwsgi-base_3_8_bullseye_files

zuul.d/project.yaml

@@ -143,13 +143,10 @@
               - name: opendev-buildset-registry
               - name: system-config-build-image-python-builder-3.9-bullseye
                 soft: true
-        - system-config-build-image-python-base-3.8-bullseye
         - system-config-build-image-python-base-3.9-bullseye
         - system-config-build-image-python-base-3.10-bullseye
-        - system-config-build-image-python-builder-3.8-bullseye
         - system-config-build-image-python-builder-3.9-bullseye
         - system-config-build-image-python-builder-3.10-bullseye
-        - system-config-build-image-uwsgi-base-3.8-bullseye
         - system-config-build-image-uwsgi-base-3.9-bullseye
         - system-config-build-image-uwsgi-base-3.10-bullseye
     check-arm64:
@@ -283,13 +280,10 @@
               - name: opendev-buildset-registry
               - name: system-config-upload-image-python-builder-3.9-bullseye
                 soft: true
-        - system-config-upload-image-python-base-3.8-bullseye
         - system-config-upload-image-python-base-3.9-bullseye
         - system-config-upload-image-python-base-3.10-bullseye
-        - system-config-upload-image-python-builder-3.8-bullseye
         - system-config-upload-image-python-builder-3.9-bullseye
         - system-config-upload-image-python-builder-3.10-bullseye
-        - system-config-upload-image-uwsgi-base-3.8-bullseye
         - system-config-upload-image-uwsgi-base-3.9-bullseye
         - system-config-upload-image-uwsgi-base-3.10-bullseye
     promote:
@@ -309,13 +303,10 @@
         - system-config-promote-image-refstack
         - system-config-promote-image-ircbot
         - system-config-promote-image-matrix-eavesdrop
-        - system-config-promote-image-python-base-3.8-bullseye
         - system-config-promote-image-python-base-3.9-bullseye
         - system-config-promote-image-python-base-3.10-bullseye
-        - system-config-promote-image-python-builder-3.8-bullseye
         - system-config-promote-image-python-builder-3.9-bullseye
         - system-config-promote-image-python-builder-3.10-bullseye
-        - system-config-promote-image-uwsgi-base-3.8-bullseye
         - system-config-promote-image-uwsgi-base-3.9-bullseye
         - system-config-promote-image-uwsgi-base-3.10-bullseye