How Ansible works: Scripts and Tower
Ansible uses Secure Socket Shell key pairs to connect to managed nodes, which are controlled from one central machine. Admins create a list of instructions in a playbook, which runs on nodes through modules that ensure the same actions occur the same way on every node. Admins can use the command-line interface and directly write YAML scripts, or move to Ansible Tower's GUI designed for large environments. Tower includes role-based access control and scheduling capabilities. Read Now
To save time and money, organizations use configuration management, automation and orchestration tools, such as Ansible, for DevOps workflows. Ansible is a simple tool that uses easy-to-read-and-write code languages to manage workloads on dynamic infrastructures without extra bells and whistles bogging down tool adoption.
For those new to configuration management, check out the beginning of this guide, which provides an introduction to Ansible for DevOps, including how it works and what it does.
Already familiar with Ansible and ready to start working in the tool? Jump past the Ansible basics, and read articles that go in to detail on how to write YAML scripts, set up configurations for different environments and create a playbook.
1Manage infrastructure configurations with Ansible
Ansible's structure consists of plays, which are grouped into playbooks that contain all of the necessary directions for any given workload or host setup. Plays can be as static or dynamic as admins need, through the use of modules and variables. Learn how to write the code that will set up Ansible for DevOps in your organization.
Write yourself into a YAML file
YAML is an easy-to-learn-and-read scripting language that many configuration management tools use to automate infrastructure workloads. Although seemingly straightforward, YAML can be challenging in its demand for exactitude: Each space, symbol and return must be placed correctly in order for YAML scripts to execute. Read Now
Gain Ansible playbook skills via useful examples
This article walks admins through how to write plays in YAML, as well as how to collect those plays into playbooks so that every machine is automated the same way every time. The YAML files that make up playbooks will feature include code, which brings the contents of an external file into this file; modules written in Python, such as yum and service, which provide flexibility; and variables, which refer to fixed or set information in the main Ansible file. Read Now
Variety is the spice of DevOps
YAML is beneficial for large and flexible environments because it enables controlled automation from a single, central host. Have a rapidly changing environment? Ansible's answer is the variable. Admins can use variables to point to static code, which can then be inserted into plays for various hosts depending upon the workload. Variables range from global all the way down through specific plays to specific hosts for heightened control. Read Now