How to perform the rolling updates with Ansible in RedHat-like systems?
I’m going to show you a live Playbook with some simple Ansible code. I’m Luca Berton and welcome to today’s episode of Ansible Pilot
Ansible rolling update packages in RedHat-like systems
Today we’re talking about rolling updates in RedHat-like systems using Ansible module yum and DNF. We already talked about these modules for installing packages but we would like to consider another use case. Both manage packages with the yum/DNF package manager.
Parameters
namestringstatestringupdate_cachebooleanbugfixbooleansecurityboolean
The parameter list is pretty wide but today we are focus on these four options for our use case.
In the name could be a package or we could select all the packages of the system with the “*” star symbol.
The state for this case needs to be “latest” so we target the latest version for every package.
The “update_cache” is useful to forces the update of repository metadata before the installation, default no.
Other very interesting options are “bugfix” and “security” which allow you to update only packages marked as bugfix or security-related
Demo
Let’s jump in a real-life Playbook to rolling update in RedHat-like systems with Ansible Playbook.
- yum.yml
---
- name: rolling update Playbook
hosts: all
become: true
tasks:
- name: ensure pkg updated
ansible.builtin.yum:
name: nginx
state: latest
update_cache: true
- yum-system.yml
---
- name: rolling update Playbook
hosts: all
become: true
tasks:
- name: ensure system updated
ansible.builtin.yum:
name: "*"
state: latest
update_cache: true
Conclusion
Now you know how to perform Rolling Update in RedHat-like systems. Subscribe to the YouTube channel, Medium, and Website, X (formerly Twitter) to not miss the next episode of the Ansible Pilot.
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