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--- lab:stack_-_ansible_-_cmos [2023/04/30 15:04] – updated user
+++ lab:stack_-_ansible_-_cmos [2023/05/01 19:46] (current) – replaced user
@@ Line 1: / Line 1: @@
-====== Ansible - CMOS ======
-In our previous step we [[stack - ansible - update|updated Ubuntu]] on our [[Stack of NUCs]].
-Now we are going to create and run an Ansible playbook to check the CMOS battery health on the nodes. We are using /proc/driver/rtc instead of lm-sensors and sensors because it doesn't show the CMOS battery health on our NUCs.
-Purpose:
-  * Demonstrate a simple lineinfile checker
-  * Check for any CMOS batteries that need to be replaced
-  * Demonstrate setting the hardware (RTC) clock from the system clock
-====== Step 1 - Connect to the Ansible Control Node ======
-From [[Stack - NUC 1|NUC 1]], log in to the Ansible control node, [[Stack - NUC 2|NUC2]].
-====== Step 2 - Create the Playbook ======
-Create file /home/ansible/my-project/cmos-check.yml
-<file yaml cmos-check.yml>
----
-- hosts: nodes
-  become: true
-  become_user: root
-  tasks:
-    - name: CMOS battery health
-      lineinfile:
-        path: /proc/driver/rtc
-        line: "batt_status	: okay"
-        state: present
-      check_mode: true
-      register: cmos_battery_ok
-    - name: Set hardware clock
-      command: hwclock -w
-</file>
-====== Step 3 - Test the Playbook ======
-''ansible-playbook -i hosts cmos-check.yml''
-Congratulations on getting this far! Next up is [[FAH Installation|installing Folding at Home (FAH)]]