Remove support for Ubuntu Focal 20.04 hosts

Users running on a Focal host will now fail in prechecks.

Change-Id: Icaef4b25458490e46f623b055658abc678d2f1c6

ansible/roles/prechecks/vars/main.yml

@@ -18,5 +18,4 @@ host_os_distributions:
   Rocky:
     - "9"
   Ubuntu:
-    - "focal"
     - "jammy"

doc/source/user/operating-kolla.rst

@@ -68,13 +68,14 @@ Limitations and Recommendations
    ``ceph_nova_keyring: ceph.client.nova.keyring`` and ``ceph_nova_user: nova``
    in ``/etc/kolla/globals.yml``
 
-Ubuntu Focal 20.04
+Ubuntu Jammy 22.04
 ------------------
 
-The Victoria release adds support for Ubuntu Focal 20.04 as a host operating
-system. Ubuntu users upgrading from Ussuri should first upgrade OpenStack
-containers to Victoria, which uses the Ubuntu Focal 20.04 base container image.
-Hosts should then be upgraded to Ubuntu Focal 20.04.
+The Zed release adds support for Ubuntu Jammy 22.04 as a host operating
+system. Ubuntu Jammy 22.04 support will also be addeed to a Yoga stable
+release. Ubuntu Focal 20.04 users upgrading from Yoga should first upgrade
+OpenStack containers to Zed, which uses the Ubuntu Jammy 22.04 base container
+image. Hosts should then be upgraded to Ubuntu Jammy 22.04.
 
 CentOS Stream 8
 ---------------

zuul.d/jobs.yaml

@@ -126,20 +126,10 @@
     parent: kolla-ansible-debian-upgrade
     nodeset: kolla-ansible-debian-bullseye-aarch64
 
-- job:
-    name: kolla-ansible-ubuntu-binary-upgrade
-    parent: kolla-ansible-base
-    nodeset: kolla-ansible-focal
-    timeout: 9000
-    vars:
-      base_distro: ubuntu
-      is_upgrade: yes
-      tls_enabled: true
-
 - job:
     name: kolla-ansible-ubuntu-upgrade
     parent: kolla-ansible-base
-    nodeset: kolla-ansible-focal
+    nodeset: kolla-ansible-jammy
     timeout: 9000
     vars:
       base_distro: ubuntu
@@ -149,16 +139,17 @@
 - job:
     name: kolla-ansible-ubuntu-upgrade-cephadm
     parent: kolla-ansible-cephadm-base
-    nodeset: kolla-ansible-focal-multi
+    nodeset: kolla-ansible-jammy-multi
     timeout: 9000
     vars:
       base_distro: ubuntu
       is_upgrade: yes
+      cephadm_use_package_from_distribution: true
 
 - job:
     name: kolla-ansible-ubuntu-upgrade-ovn
     parent: kolla-ansible-ovn-base
-    nodeset: kolla-ansible-focal-multi
+    nodeset: kolla-ansible-jammy-multi
     timeout: 9000
     vars:
       base_distro: ubuntu
@@ -222,7 +213,7 @@
 - job:
     name: kolla-ansible-ubuntu-swift-upgrade
     parent: kolla-ansible-swift-base
-    nodeset: kolla-ansible-focal-multi
+    nodeset: kolla-ansible-jammy-multi
     timeout: 10800
     vars:
       base_distro: ubuntu
@@ -343,7 +334,7 @@
 - job:
     name: kolla-ansible-ubuntu-prometheus-opensearch-upgrade
     parent: kolla-ansible-prometheus-opensearch-base
-    nodeset: kolla-ansible-focal
+    nodeset: kolla-ansible-jammy
     vars:
       base_distro: ubuntu
       is_upgrade: yes

zuul.d/nodesets.yaml

@@ -17,12 +17,6 @@
       - name: primary
         label: debian-bullseye-arm64
 
-- nodeset:
-    name: kolla-ansible-focal
-    nodes:
-      - name: primary
-        label: ubuntu-focal
-
 - nodeset:
     name: kolla-ansible-jammy
     nodes:
@@ -51,16 +45,6 @@
       - name: primary
         label: rockylinux-9
 
-- nodeset:
-    name: kolla-ansible-focal-multi
-    nodes:
-      - name: primary
-        label: ubuntu-focal
-      - name: secondary1
-        label: ubuntu-focal
-      - name: secondary2
-        label: ubuntu-focal
-
 - nodeset:
     name: kolla-ansible-jammy-multi
     nodes: