fix podman containers failing with 'invalid internal status' after hard reboot

Author: sjpb

ansible/roles/podman/tasks/config.yml

@@ -44,3 +44,19 @@
   with_items: "{{ podman_users }}"
   register: podman_user_info
   become: yes
+
+- name: Clear up podman temporary files on startup
+  copy:
+    content: |
+      # {{ ansible_managed }}
+      # Delete ephemeral podman files to avoid issues where /tmp is not of type tmpfs and persists across reboots.
+      # See tmpfiles.d(5) man page, note "R" specifies recursive removal and "!" marks as happening only on boot.
+      #
+      # Type Path Mode User Group Age Argument
+      R! /tmp/containers-user-*
+      R! /tmp/podman-run-*
+    dest: /etc/tmpfiles.d/podman-local.conf
+    owner: root
+    group: root
+    mode: 0660
+  become: true