update apt sources template

playbooks/os-updates-deb.yml

@@ -0,0 +1,17 @@
+- hosts: all
+  become: true
+  tasks:
+    - name: Verify if system is Debian
+      debug:
+        msg: "This playbook is running on a Debian system."
+      when: ansible_os_family == "Debian"
+
+    - name: Stop playbook if system is not Debian
+      fail:
+        msg: "This playbook only supports Debian."
+      when: ansible_os_family != "Debian"
+
+    - name: Include OS update role
+      include_role:
+        name: os-updates
+      when: ansible_os_family == "Debian"

roles/os-updates/tasks/upgrade_packages.yml

@@ -7,17 +7,17 @@
 
 - name: Check if a kernel update is available
   shell: |
-    dpkg -l | grep -E 'linux-image-[0-9]' | awk '{print $2}' | sort | tail -n 1
+    dpkg -l | grep -E '^ii' | grep 'linux-image-[0-9]' | awk '{print $2}' | sort | tail -n 1
   register: latest_kernel
 
 - name: Check if running kernel matches the latest installed kernel
-  shell: uname -r | grep -c "{{ latest_kernel.stdout }}"
+  shell: |
+    echo "{{ latest_kernel.stdout }}" | grep -c $(uname -r)
   register: kernel_match
   changed_when: false
+  ignore_errors: true
 
 - name: Mark reboot required if a new kernel is installed
   set_fact:
     reboot_required: "yes"
-  notify: 
-    - Reboot system
   when: kernel_match.stdout == "0"

roles/os-updates/templates/sources.list.j2

@@ -0,0 +1,5 @@
+# {{ ansible_managed }}
+deb {{ os_update_mirrors[0] }} {{ os_update_version_codename }} main contrib non-free non-free-firmware
+deb {{ os_update_mirrors[0] }} {{ os_update_version_codename }}-updates main contrib non-free non-free-firmware
+deb {{ os_update_mirrors[0] }} {{ os_update_version_codename }}-backports main contrib non-free non-free-firmware
+deb {{ os_update_mirrors[1] }} {{ os_update_version_codename }}-security main contrib non-free non-free-firmware