Ansible Basics
Ansible is an open-source IT automation software that automates the IT infrastructure. It creates an automated and consistent IT environment which makes IT task much easier and faster. Such an environment is self-regulating that can manage all the IT services without using any additional agent. It set up an automated environment for server, OS, Application and other IT services and configures them for better access. It also manages the deployment of any application on the system. Ansible uses to configure a variety of IT materials such as network devices, servers, database storage, cloud infrastructure, firewall, and any other virtual/physical platform. It automates the administrator’s task and allows fast access to various IT services. Ansible uses YAML language that describes system configuration to manage the IT services.
Ansible makes the everyday IT task easier. IT tasks like storing the data, transfer the data, processing the data, dealing with bugs, installation, managing the security, etc. It is highly scalable. Big Software like Splunk Universal Forwarders is installed or updated with so much overhead and time-consuming. But Ansible makes it easy by configuring them and making everything automated. It removes the extra dependencies of the IT environment. Ansible just utilizes the playbooks which are nothing but YAML files that contains the express configuration instructions. It helps to coordinate the processes which contain IT incidents, service request, service change, ad-hoc activities, etc.
Provisioning:- Ansible automates the provisioning of any IT infrastructure which can contain the life cycle of the application. Ansible can provision network devices, virtualize host, cloud platform and bare-metals.
Configuration management:- Ansible helps to maintain the consistency of the application performance by updating every detail related to the application. It manages the configuration of the IT environment to easily install/update the application.
Security:- Security policies can be newly defined by ansible which can be integrated with other automated processes. To improve the security of different nodes, one needs to configure security details once in the control machine and this will integrate with all other nodes automatically.
If we want to install a new version of Tomcat software in multiple, then it is not a good idea to manually update the software in every machine. We can install the Tomcat software in one machine only and that will adequate to make the installation in every other machine. We can use playbooks and inventory of Ansible to do this task. We can mention the IP addresses of all the other machines in the inventory can write instructions to install Tomcat in playbook using YAML. This will install Tomcat on the other entire machine by just running this playbook on only one control machine.
In order to start learning ansible, you should have hands-on experience in using commands in Linux shell.
This blog is for people who have knowledge of Python and SSH and want to get an idea of the use and application of Ansible.
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Web development, programming languages, Software testing & others