[release] Set previous_release to xena

Also remove some Wallaby upgrade compatibility code in CI playbooks

Change-Id: I84e336bec37eac12c659c7a9d9fc4ddd191a379d

playbooks/kayobe-overcloud-upgrade-base/overrides.yml.j2

@@ -10,11 +10,6 @@ docker_registry_mirrors:
 kolla_docker_namespace: "openstack.kolla"
 # use the published images from a site mirror of quay.io
 kolla_docker_registry: "{{ zuul_site_mirror_fqdn }}:4447"
-# TODO(priteau): Remove this when previous_release is Xena
-{% if is_previous_release | default(false) and previous_release == 'wallaby'%}
-# Keep the existing image type when installing Wallaby.
-kolla_install_type: "{{ 'source' if ansible_distribution == 'Ubuntu' else 'binary' }}"
-{% endif %}
 {% if not is_previous_release | default(false) %}
 kolla_source_url: "{{ ansible_env.PWD ~ '/' ~ zuul.projects['opendev.org/openstack/kolla'].src_dir }}"
 kolla_source_version: "{{ zuul.projects['opendev.org/openstack/kolla'].checkout }}"

playbooks/kayobe-overcloud-upgrade-base/run.yml

@@ -17,9 +17,7 @@
           # be run after install.
           shell:
             cmd: dev/configure-firewall.sh
-            # TODO(mgoddard): Use the previous repo when the previous release
-            # is no longer Wallaby.
-            chdir: "{{ kayobe_src_dir }}"
+            chdir: "{{ previous_kayobe_src_dir }}"
             executable: /bin/bash
 
         - name: Ensure overcloud is deployed
@@ -107,17 +105,6 @@
             cmd: "docker image prune --all --force"
           become: true
 
-        # TODO(mgoddard): Remove this task when the previous release is no
-        # longer Wallaby.
-        - name: Switch ironic nodes deploy interface to direct
-          shell:
-            cmd: >-
-              source ~/tenks-venv/bin/activate &&
-              source {{ kayobe_config_src_dir }}/etc/kolla/public-openrc.sh &&
-              openstack baremetal node set tk0 --deploy-interface direct &&
-              openstack baremetal node set tk1 --deploy-interface direct
-            executable: /bin/bash
-
         # Perform a smoke test against the upgraded current release.
 
         - name: Perform testing of VMs in the upgraded overcloud

zuul.d/jobs.yaml

@@ -73,7 +73,7 @@
       - ^zuul.d/.*
     vars:
       # Name of the release to upgrade from for upgrade jobs.
-      previous_release: wallaby
+      previous_release: xena
       logs_dir: "/tmp/logs"
       kayobe_src_dir: "{{ ansible_env.PWD ~ '/' ~ zuul.projects['opendev.org/openstack/kayobe'].src_dir }}"
       kayobe_config_src_dir: "{{ ansible_env.PWD ~ '/' ~ zuul.projects['opendev.org/openstack/kayobe-config-dev'].src_dir }}"