semaphore setup

roles/lib/upgrade-packages.yml

@@ -6,6 +6,13 @@
       create: yes
       mode: '0644'
 
+  - name: Set up apt proxy configuration
+    copy:
+      content: |
+        Acquire::http::Proxy "http://debcache:3142";
+      dest: /etc/apt/apt.conf.d/00cacher
+      mode: '0644'
+
   - name: Update apt cache
     ansible.builtin.apt:
       update_cache: yes