gitlab-ci: disable CentOS 8 Linux containers

CentOS 8 Linux is end of life. That wouldn't bother us, but when
you start such a container

  $ podman run -ti --privileged quay.io/centos/centos:8.3.2011

then `dnf upgrade` will fail, because the mirror list returns
nothing. To work around that, we need to adjust ci-templates ([1]).

The work around might be to patch /etc/yum.repos.d when creating
the container image ([2]).

For now (or maybe indefinitely) disable these build targets.

[1] https://gitlab.freedesktop.org/freedesktop/ci-templates/-/merge_requests/131
[2] https://stackoverflow.com/questions/70926799/centos-through-vm-no-urls-in-mirrorlist

.gitlab-ci.yml

@@ -47,11 +47,11 @@ variables:
   #
   # This is done by running `ci-fairy generate-template` and possibly bump
   # ".default_tag".
-  FEDORA_TAG:  '2022-02-14.0-3804e9403f0c'
-  UBUNTU_TAG:  '2022-02-14.0-747f2537c589'
-  DEBIAN_TAG:  '2022-02-14.0-747f2537c589'
-  CENTOS_TAG:  '2022-02-14.0-3804e9403f0c'
-  ALPINE_TAG:  '2022-02-14.0-8d613ac1d9fd'
+  FEDORA_TAG:  '2022-02-14.0-8384452eb54e'
+  UBUNTU_TAG:  '2022-02-14.0-bd3c060f94c2'
+  DEBIAN_TAG:  '2022-02-14.0-bd3c060f94c2'
+  CENTOS_TAG:  '2022-02-14.0-8384452eb54e'
+  ALPINE_TAG:  '2022-02-14.0-0990abecb69f'
 
   FEDORA_EXEC: 'bash .gitlab-ci/fedora-install.sh'
   UBUNTU_EXEC: 'bash .gitlab-ci/debian-install.sh'
@@ -304,36 +304,6 @@ centos:7.9.2009@container-prep:
     FDO_DISTRIBUTION_TAG: $CENTOS_TAG
     FDO_DISTRIBUTION_EXEC: $CENTOS_EXEC
 
-centos:8.1.1911@container-prep:
-  extends:
-    - .fdo.container-build@centos
-  stage: prep
-  variables:
-    GIT_STRATEGY: none
-    FDO_DISTRIBUTION_VERSION: '8.1.1911'
-    FDO_DISTRIBUTION_TAG: $CENTOS_TAG
-    FDO_DISTRIBUTION_EXEC: $CENTOS_EXEC
-
-centos:8.2.2004@container-prep:
-  extends:
-    - .fdo.container-build@centos
-  stage: prep
-  variables:
-    GIT_STRATEGY: none
-    FDO_DISTRIBUTION_VERSION: '8.2.2004'
-    FDO_DISTRIBUTION_TAG: $CENTOS_TAG
-    FDO_DISTRIBUTION_EXEC: $CENTOS_EXEC
-
-centos:8.3.2011@container-prep:
-  extends:
-    - .fdo.container-build@centos
-  stage: prep
-  variables:
-    GIT_STRATEGY: none
-    FDO_DISTRIBUTION_VERSION: '8.3.2011'
-    FDO_DISTRIBUTION_TAG: $CENTOS_TAG
-    FDO_DISTRIBUTION_EXEC: $CENTOS_EXEC
-
 alpine:latest@container-prep:
   extends:
     - .fdo.container-build@alpine
@@ -576,33 +546,6 @@ centos:7.9.2009@container-clean:
     FDO_DISTRIBUTION_VERSION: '7.9.2009'
     FDO_DISTRIBUTION_TAG: $CENTOS_TAG
 
-centos:8.1.1911@container-clean:
-  extends:
-    - .container-clean
-  variables:
-    GIT_STRATEGY: none
-    CURRENT_CONTAINER_IMAGE: $CI_REGISTRY_IMAGE/centos/$FDO_DISTRIBUTION_VERSION:$FDO_DISTRIBUTION_TAG
-    FDO_DISTRIBUTION_VERSION: '8.1.1911'
-    FDO_DISTRIBUTION_TAG: $CENTOS_TAG
-
-centos:8.2.2004@container-clean:
-  extends:
-    - .container-clean
-  variables:
-    GIT_STRATEGY: none
-    CURRENT_CONTAINER_IMAGE: $CI_REGISTRY_IMAGE/centos/$FDO_DISTRIBUTION_VERSION:$FDO_DISTRIBUTION_TAG
-    FDO_DISTRIBUTION_VERSION: '8.2.2004'
-    FDO_DISTRIBUTION_TAG: $CENTOS_TAG
-
-centos:8.3.2011@container-clean:
-  extends:
-    - .container-clean
-  variables:
-    GIT_STRATEGY: none
-    CURRENT_CONTAINER_IMAGE: $CI_REGISTRY_IMAGE/centos/$FDO_DISTRIBUTION_VERSION:$FDO_DISTRIBUTION_TAG
-    FDO_DISTRIBUTION_VERSION: '8.3.2011'
-    FDO_DISTRIBUTION_TAG: $CENTOS_TAG
-
 alpine:latest@container-clean:
   extends:
     - .container-clean
@@ -874,39 +817,6 @@ t_centos:7.9.2009:
     - "centos:7.9.2009@container-prep"
   when: manual
 
-t_centos:8.1.1911:
-  extends:
-    - .build@template
-    - .fdo.distribution-image@centos
-  variables:
-    FDO_DISTRIBUTION_VERSION: '8.1.1911'
-    FDO_DISTRIBUTION_TAG: $CENTOS_TAG
-  needs:
-    - "centos:8.1.1911@container-prep"
-  when: manual
-
-t_centos:8.2.2004:
-  extends:
-    - .build@template
-    - .fdo.distribution-image@centos
-  variables:
-    FDO_DISTRIBUTION_VERSION: '8.2.2004'
-    FDO_DISTRIBUTION_TAG: $CENTOS_TAG
-  needs:
-    - "centos:8.2.2004@container-prep"
-  when: manual
-
-t_centos:8.3.2011:
-  extends:
-    - .build@template
-    - .fdo.distribution-image@centos
-  variables:
-    FDO_DISTRIBUTION_VERSION: '8.3.2011'
-    FDO_DISTRIBUTION_TAG: $CENTOS_TAG
-  needs:
-    - "centos:8.3.2011@container-prep"
-  when: manual
-
 t_alpine:latest:
   extends:
     - .build@template

.gitlab-ci/config.yml

@@ -52,9 +52,6 @@ distributions:
       - '7.7.1908'
       - '7.8.2003'
       - '7.9.2009'
-      - '8.1.1911'
-      - '8.2.2004'
-      - '8.3.2011'
   - name: alpine
     tag: *default_tag
     base_type: alpine