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Quick patches with Ansible
Game Plan
Conclusions
Although the use of Ansible for simple tasks appears to be a little over the top at first glance, doing so offers massive benefits on closer inspection. You can update entire server landscapes in next to no time, and you can identify hosts on which an automatic update process in the form of the unattended-upgrades role could be useful. Automatically updating your own services – in my case Pi-hole – even ensures that you have documentation for the process. A correctly authored playbook clearly explains which steps to take – which is especially useful for applications that are not updated regularly.
Ansible can provide useful support for your everyday chores, but the tool really comes into its own when it takes on the massive task of installing new systems. The systems I am talking about here are servers with several SCSI controllers for a large number of logical volume data carriers, hosts for distributed databases, and application servers. Even if you have well-maintained templates, setting up these systems involves many hours of extremely error-prone work, always with the risk of forgetting some minute but critical detail.
Infos
- SUSE Multi-Linux Manager: https://www.suse.com/products/multi-linux-manager/
- Uyuni: https://www.uyuni-project.org
- Ansible documentation: https://docs.ansible.com
- YAML syntax: https://docs.ansible.com/ansible/latest/reference_appendices/YAMLSyntax.html
- Pi-hole documentation: https://docs.pi-hole.net/core/pihole-command/
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