Prepare a persistent local cache directory and define XDG_CACHE_HOME.

roles/lmn_mount/tasks/main.yml

@@ -21,6 +21,33 @@
       ><not><or><user>root</user><user>ansible</user><user>Debian-gdm</user><user>sddm</user><user>virti</user></or></not></volume>
     insertafter: "<!-- Volume definitions -->"
 
+
+- name: Prepare persistent user cache base directory
+  ansible.builtin.file:
+    path: /var/cache/user/
+    state: directory
+    mode: '1777'
+
+- name: Create user-environment-generator directory
+  ansible.builtin.file:
+    path: /etc/systemd/user-environment-generators/
+    state: directory
+
+- name: Prepare generator for persistent user cache directory
+  ansible.builtin.copy:
+    dest: /etc/systemd/user-environment-generators/50-xdg-cache-home.sh
+    content: |
+      #!/usr/bin/bash
+      set -eu
+      ## local users do not need the extra cache dir:
+      [[ "$UID" -le 60000 ]] && exit 0
+      cp -r -n /etc/skel/.* "$HOME"
+      DIR="/var/cache/user/${UID}/"
+      [[ -d "$DIR" ]] || mkdir -m 0700 "$DIR"
+      echo XDG_CACHE_HOME="$DIR"
+    mode: "0755"
+
+
 - name: Clean up all user processes after logout
   ansible.builtin.replace:
     path: /etc/security/pam_mount.conf.xml