Fix build and rotation of amphora images on Rocky 9

EPEL is required for the debootstrap package.

Author: MoteHue

etc/kayobe/ansible/octavia-amphora-image-build.yml

@@ -4,6 +4,12 @@
   vars:
     amphora_dib_upper_constraints_file: "{{ pip_upper_constraints_file }}"
   tasks:
+    - name: Install EPEL
+      package:
+        name: epel-release
+      become: true
+      when: ansible_facts.os_family == "RedHat"
+
     - name: Ensure packages are installed
       become: true
       vars:

etc/kayobe/ansible/octavia-amphora-image-register.yml

@@ -16,6 +16,7 @@
     - name: Set up openstack virtualenv
       pip:
         virtualenv: "{{ venv }}"
+        virtualenv_command: python3 -m venv
         name:
           - openstacksdk
           - python-openstackclient