keep using insecure http repository for debian 8, 9 and 10

we use https only starting from debian 11

playbook/group_vars/all

 ---
 
 base_open_build_url: https://download.opensuse.org/repositories/home:/VIFIBnexedi/
+base_open_build_url_http: http://download.opensuse.org/repositories/home:/VIFIBnexedi/
 
 is_ubuntu: "'{{ ansible_distribution }}' == 'Ubuntu'"
 is_debian: "'{{ ansible_distribution }}' == 'Debian'"

playbook/roles/repository/tasks/main.yml

@@ -3,6 +3,11 @@
 
   - include: debian_init.yml
 
+  - name: Force HTTP repository for old debian versions without HTTPS support
+    set_fact:
+      base_open_build_url: "{{ base_open_build_url_http }}"
+    when: ansible_distribution == 'Debian' and ansible_distribution_major_version in ("8", "9", "10")
+
   - name: Remove {{ base_open_build_url }} key (and add later) on every upgrade, as expiration date is quite short (2 months).
     apt_key: id=94A63987 state=absent
     when: ansible_distribution == "Debian"