Added Raspberry Pi watchdog setup

playbooks/rpi-watchdog.yaml

@@ -0,0 +1,33 @@
+---
+- name: Configure watchdog on raspberry pis
+  hosts: raspberries
+  tasks:
+    # https://raspberrypi.stackexchange.com/a/99625
+    - name: Configure watchdog runtime to 10 sec
+      ansible.builtin.replace:
+        regexp: '#?RuntimeWatchdogSec=\d+'
+        replace: 'RuntimeWatchdogSec=10'
+        path: /etc/systemd/system.conf
+      become: true
+      become_method: sudo
+      register: runtime_watchdoggo
+    - name: Configure watchdog shutdown timer to 10 min
+      ansible.builtin.replace:
+        regexp: '#?ShutdownWatchdogSec=\d+[a-z]*'
+        replace: 'ShutdownWatchdogSec=10min'
+        path: /etc/systemd/system.conf
+      become: true
+      become_method: sudo
+      register: shutdown_watchdoggo
+
+    - name: Reload systemd if needed
+      ansible.builtin.systemd_service:
+        daemon_reload: true
+      become: true
+      become_method: sudo
+      when: runtime_watchdoggo.changed or shutdown_watchdoggo.changed
+
+
+#RuntimeWatchdogSec=0
+#ShutdownWatchdogSec=10min
+