Ensure that /var is mounted with dev and exec options prior to LXC container creation.

evolinux-base/tasks/fstab.yml

@@ -1,5 +1,6 @@
 ---
 # TODO: trouver comment faire une copie initiale de /etc/fstab
+#   - piste : paramètre "backup" du module mount https://docs.ansible.com/ansible/latest/collections/ansible/posix/mount_module.html
 # TODO: try to use the custom mount_uuid module for a different approach
 
 - name: Fetch fstab content

lxc/tasks/main.yml

@@ -43,6 +43,16 @@
     - lxc_unprivilegied_containers | bool
     - root_subuids.rc != 0
 
+- name: /var has mount options dev and exec enabled
+  mount:
+    path: /var
+    opts: dev,exec
+    state: remounted
+  with_items: "{{ ansible_mounts }}"
+  when: "item.mount == '/var' and
+        ('nodev' in item.options.split(',') or
+        'noexec' in item.options.split(','))"
+
 - name: Create containers
   include: create-container.yml
   vars: