Configuration Management with Ansible

Learn how to manage and deploy on servers using Ansible

Transcript

1. photo Configuration management with Ansible Configuring and deploying on Compute Engine.
2. Celestine Omin Software Engineer - Konga. @cyberomin Who am I?
3. History…. How did we get here?
4. History…. The Old Guys
5. History…. Young and hippy
6. What is Ansbile? “Ansible is a free-software platform for configuring and managing computers which combines multi-node software deployment, ad hoc task execution, and configuration management.” ~ Wikipedia
7. Configuration management, what’s that? “Configuration management (CM) is a systems engineering process for establishing and maintaining consistency of a product's performance, functional, and physical attributes with its requirements, design, and operational information throughout its life” ~ Wikipedia
8. Configuration management tools 1.Ansible 2.Chef 3.SaltStack 4.Pupette
9. Why Ansible? 1. Unlike the rest, especially the really popular Chef, Ansible is agentless. It only requires standard SSH connection. 2. Idempotency.
10. Installation $ sudo apt-get install software-properties-common $ sudo apt-add-repository ppa:ansible/ansible $ sudo apt-get update $ sudo apt-get install ansible
11. Inventories [web] 127.0.0.1 [db] Eu-zone-db-node [lb] Load-balance-node
12. Commands ansible all –m ping –u celestine ansible all -m shell -a "ping -c3 localhost" -u celestine
13. Playbooks Playbooks are Ansible’s configuration, deployment, and orchestration language. They can describe a policy you want your remote systems to enforce, or a set of steps in a general IT process.
14. Playbooks - What makes up a playbook Roles – tasks, handlers, files, templates, vars Group_vars
15. Roles – Tasks – main.yml ---- - name: Add Nginx Repository apt_repository: repo='ppa:nginx/stable' state=present - name: Install Nginx apt: name=nginx state=latest update_cache=true notify: Start Nginx
16. Roles – Handlers – main.yml ---- - name: Start Nginx service: name=nginx state=started - name: Reload Nginx service: name=nginx state=reloaded
17. Running a playbook ansible-playbook site.yml
18. Ansible Galaxy http://galaxy.ansible.com
19. Questions
20. thank you