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Configuration Management with Ansible
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Celestine Omin
June 12, 2016
Technology
1
160
Configuration Management with Ansible
Learn how to manage and deploy on servers using Ansible
Celestine Omin
June 12, 2016
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Transcript
photo Configuration management with Ansible Configuring and deploying on Compute
Engine.
Celestine Omin Software Engineer - Konga. @cyberomin Who am I?
History…. How did we get here?
History…. The Old Guys
History…. Young and hippy
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
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
Configuration management tools 1.Ansible 2.Chef 3.SaltStack 4.Pupette
Why Ansible? 1. Unlike the rest, especially the really popular
Chef, Ansible is agentless. It only requires standard SSH connection. 2. Idempotency.
Installation $ sudo apt-get install software-properties-common $ sudo apt-add-repository ppa:ansible/ansible
$ sudo apt-get update $ sudo apt-get install ansible
Inventories [web] 127.0.0.1 [db] Eu-zone-db-node [lb] Load-balance-node
Commands ansible all –m ping –u celestine ansible all -m
shell -a "ping -c3 localhost" -u celestine
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.
Playbooks - What makes up a playbook Roles – tasks,
handlers, files, templates, vars Group_vars
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
Roles – Handlers – main.yml ---- - name: Start Nginx
service: name=nginx state=started - name: Reload Nginx service: name=nginx state=reloaded
Running a playbook ansible-playbook site.yml
Ansible Galaxy http://galaxy.ansible.com
Questions
thank you