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--- lab:first_ansible_job_-_update [2023/04/17 21:38] – added ethernet optional playbook user
+++ lab:first_ansible_job_-_update [2023/04/28 21:39] (current) – replaced user
@@ Line 1: / Line 1: @@
-====== First Ansible Job - Update ======
-From NUC 1, log in to the Ansible control node, NUC 2.
-We are going to create and run an Ansible playbook to update the OS on the nodes.
-In the [[discover_nucs_and_add_to_inventory|previous step]] we discovered and added the IP address of all our nodes to the file on [[NUC 2]]: ''/home/ansible/my-project/hosts''
-Purpose:
-  * Demonstrate a very useful playbook
-  * Update all our nodes to the latest code
-Steps:
-  - Create file /home/ansible/my-project/update.yml
-    * <code yaml>
-- hosts: nodes
-  become: true
-  become_user: root
-  tasks:
-    - name: Update apt repo and cache on all Debian/Ubuntu boxes
-      apt: update_cache=yes force_apt_get=yes cache_valid_time=3600
-    - name: Upgrade all packages on servers
-      apt: upgrade=dist force_apt_get=yes
-    - name: Check if a reboot is needed on all servers
-      register: reboot_required_file
-      stat: path=/var/run/reboot-required get_md5=no
-    - name: Reboot the box if kernel updated
-      reboot:
-        msg: "Reboot initiated by Ansible for kernel updates"
-        connect_timeout: 5
-        reboot_timeout: 300
-        pre_reboot_delay: 0
-        post_reboot_delay: 30
-        test_command: uptime
-      when: reboot_required_file.stat.exists
-</code>
-  - Test the playbook
-    * ''ansible-playbook -i hosts update.yml''
- Congratulations you just updated your nodes! Next [[second_ansible_job_-_check_cmos_battery_health|check your CMOS Battery Health]]
-====== Optional ======
-Set the ethernet interface to be "optional" on the nodes so they will boot faster; they normally wait for the network to come up on the wired interface.
-Steps:
-  - Create file /home/ansible/my-project/ethernetoptional.yml
-    * <code yaml>
-- hosts: nodes
-  become: true
-  become_user: root
-  tasks:
-    - name: Set ethernet interface to optional
-      lineinfile:
-        path: /etc/netplan/00-installer-config.yaml
-        insertafter: "dhcp4: true"
-        line: "      optional: true"
-    - name: Apply netplan
-      command: netplan apply
-      ignore_errors: true
-</code>
-  - Test the playbook
-    * ''ansible-playbook -i hosts ethernetoptional.yml''