ANSIBLE FOR DEVOPS

What Is Ansible?

Ansible is a popular IT automation engine that automates tasks that are either difficult, repetitive, or sophisticated, such as configuration management, cloud provisioning, software deployment, and intra-service orchestration.

Ansible is used for multi-tier deployments, and it models all IT infrastructure into a single deployment instead of handling each one individually. In the Ansible architecture, there are no agents and no bespoke security architecture is required. The deployment is done via YAML, which stands for “YAML Ain’t Markup Language,” a simple plain English-like language used in Ansible.

Ansible is straightforward to use; it connects your nodes by sending little programmes called “Ansible Modules” to them. Them can install the modules, connect to the SSH agent to run them, and then remove it once they’re finished. These modules don’t require any servers, daemons, or databases, and they can be installed on any machine. You’ll need a text editor or terminal application, as well as a version control system, to deal with the significant changes. Ansible comes with around 750 pre-installed modules.

Passwords are supported in Ansible, however you may also use SSH keys with the ssh-agents as a method of working with Ansible. Any user account can be created, however the root user is necessary. A module called “authorized key” can be used to control which machines can access which hosts.

You can maintain your inventory and add machines to Ansible using a simple text format. Other sources of inventory and variable information, such as Rackspace, EC2, and Openstack, can be used.

If you need to write your own code, you can use Ansible in languages that return JSON, such as Python, Ruby, and Bash. You are free to create your own modules, APIs, and plugins.

Playbooks are a simple yet effective automation language for orchestrating various infrastructures at the same time. This may be accomplished using Ansible.

DevOps with Ansible

For orchestration, automation, configuration, and management of IT infrastructure, Ansible is the most popular DevOps tool. Ansible’s advantages in DevOps include the ability to respond and scale in response to demand. The advantages of Ansible in DevOps are as follows:

The feedback loop is accelerated more quickly.

Bugs are discovered sooner rather than later.

The risk of not having enough knowledge is reduced.

The deployments are trustworthy.

The information technology infrastructure is coordinated.

The deployments are more rapid.

Automation is required.

Configuration management and version control

IT Infrastructure Orchestration is a term used to describe the process of orchestrating the IT infrastructure.

Do we need Ansible? Why

If you have four or five web servers to configure and deploy, as well as more than four database servers to configure and install, Ansible will come in handy. Programs on the web servers connect to the database servers in the backend. In most cases, you will have to configure and operate these servers on your own.

These servers, on the other hand, will receive numerous program upgrades. Even a system administrator will be overwhelmed if there are more servers with different settings. These jobs are difficult to do and maintain due to the large number of servers, which necessitates a lot of effort from system administrators as well as developers working on the apps. Consider the organization’s other servers, such as DNS, NTP, AD, Email, and so on.

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