Move jobs to use Ubuntu Focal

According to the docs[0] Ubuntu Focal is the
version supported for Xena. This commit
updates the jobs and the Amphora image.

[0] https://governance.openstack.org/tc/reference/runtimes/xena.html
Depends-On: https://review.opendev.org/c/openstack/kuryr-kubernetes/+/812154

Change-Id: I869040d9b05ef3d1cded5f91e1634214b83fd348

.zuul.d/base.yaml

@@ -187,8 +187,8 @@
         KURYR_EP_DRIVER_OCTAVIA_PROVIDER: ovn
         KURYR_K8S_OCTAVIA_MEMBER_MODE: L2
         KURYR_LB_ALGORITHM: SOURCE_IP_PORT
-        OCTAVIA_AMP_IMAGE_FILE: /tmp/test-only-amphora-x64-haproxy-ubuntu-bionic.qcow2
-        OCTAVIA_AMP_IMAGE_NAME: test-only-amphora-x64-haproxy-ubuntu-bionic
+        OCTAVIA_AMP_IMAGE_FILE: /tmp/test-only-amphora-x64-haproxy-ubuntu-focal.qcow2
+        OCTAVIA_AMP_IMAGE_NAME: test-only-amphora-x64-haproxy-ubuntu-focal
         OCTAVIA_AMP_IMAGE_SIZE: 3
       devstack_local_conf:
         post-config:
@@ -229,8 +229,8 @@
         - kuryr-tempest-plugin
         - octavia-tempest-plugin
       devstack_localrc:
-        OCTAVIA_AMP_IMAGE_FILE: /tmp/test-only-amphora-x64-haproxy-ubuntu-bionic.qcow2
-        OCTAVIA_AMP_IMAGE_NAME: test-only-amphora-x64-haproxy-ubuntu-bionic
+        OCTAVIA_AMP_IMAGE_FILE: /tmp/test-only-amphora-x64-haproxy-ubuntu-focal.qcow2
+        OCTAVIA_AMP_IMAGE_NAME: test-only-amphora-x64-haproxy-ubuntu-focal
         OCTAVIA_AMP_IMAGE_SIZE: 3
       devstack_local_conf:
         post-config:

.zuul.d/k8s-np-e2e.yaml

@@ -53,8 +53,8 @@
         KURYR_SG_DRIVER: policy
         KURYR_SUBNET_DRIVER: namespace
         ML2_L3_PLUGIN: ovn-router,trunk,qos
-        OCTAVIA_AMP_IMAGE_FILE: "/tmp/test-only-amphora-x64-haproxy-ubuntu-bionic.qcow2"
-        OCTAVIA_AMP_IMAGE_NAME: "test-only-amphora-x64-haproxy-ubuntu-bionic"
+        OCTAVIA_AMP_IMAGE_FILE: "/tmp/test-only-amphora-x64-haproxy-ubuntu-focal.qcow2"
+        OCTAVIA_AMP_IMAGE_NAME: "test-only-amphora-x64-haproxy-ubuntu-focal"
         OCTAVIA_AMP_IMAGE_SIZE: 3
         OVN_BRANCH: v20.06.2
         OVN_BUILD_FROM_SOURCE: true

.zuul.d/project.yaml

@@ -41,15 +41,15 @@
         - kuryr-kubernetes-tempest-dual-stack
 
 - project-template:
-    name: kuryr-kubernetes-lower-constraints-bionic-jobs
+    name: kuryr-kubernetes-lower-constraints-focal-jobs
     check:
       jobs:
       - openstack-tox-lower-constraints:
-          nodeset: ubuntu-bionic
+          nodeset: ubuntu-focal
     gate:
       jobs:
       - openstack-tox-lower-constraints:
-          nodeset: ubuntu-bionic
+          nodeset: ubuntu-focal
 
 - project:
     templates:
@@ -57,5 +57,5 @@
       - publish-openstack-docs-pti
       - release-notes-jobs-python3
       - check-requirements
-      - kuryr-kubernetes-lower-constraints-bionic-jobs
+      - kuryr-kubernetes-lower-constraints-focal-jobs
       - kuryr-kubernetes-tempest-jobs

.zuul.d/tempest-jobs.yaml

@@ -208,8 +208,8 @@
         - octavia-tempest-plugin
       devstack_localrc:
         KURYR_ENFORCE_SG_RULES: true
-        OCTAVIA_AMP_IMAGE_FILE: /tmp/test-only-amphora-x64-haproxy-ubuntu-bionic.qcow2
-        OCTAVIA_AMP_IMAGE_NAME: test-only-amphora-x64-haproxy-ubuntu-bionic
+        OCTAVIA_AMP_IMAGE_FILE: /tmp/test-only-amphora-x64-haproxy-ubuntu-focal.qcow2
+        OCTAVIA_AMP_IMAGE_NAME: test-only-amphora-x64-haproxy-ubuntu-focal
         OCTAVIA_AMP_IMAGE_SIZE: 3
       devstack_local_conf:
         post-config:

playbooks/get_amphora_tarball.yaml

@@ -2,5 +2,5 @@
   tasks:
     - name: Download amphora tarball
       get_url:
-        url: "https://tarballs.openstack.org/octavia/test-images/test-only-amphora-x64-haproxy-ubuntu-bionic.qcow2"
-        dest: /tmp/test-only-amphora-x64-haproxy-ubuntu-bionic.qcow2
+        url: "https://tarballs.openstack.org/octavia/test-images/test-only-amphora-x64-haproxy-ubuntu-focal.qcow2"
+        dest: /tmp/test-only-amphora-x64-haproxy-ubuntu-focal.qcow2