Ansible doesn’t require an agent to push the changes but it needs few configurations on the client side to access the server and perform the tasks without prompting for username/ password/other authentication. I would recommend using non-root user for Ansible setup but ensure that user is consistent across your environment. Let’s setup the servers for Ansible […]
DevOps
How to Install Ansible Engine on CentOS / RHEL
Installing the Ansible engine and set up the environment is pretty straightforward. Ansible engine can be installed on the majority of Linux flavors which includes CentOS, RHEL, Ubuntu, and Debian but it doesn’t support Windows, Solaris, and AIX. But there are no restrictions to participate as ansible clients. Ansible uses the SSH protocol to manage the Unix and Linux […]
What is Ansible ? How it Works ? Why do we need to use ?
Why do we need Configuration Management tool? Anyone who works as an operations engineer has witnessed a bunch of issues with manual configuration approach and more repetitive tasks which are time-consuming. How many times key resources left the company and new engineer struggle to understand the environment and start performing the tasks without escalation? Server configuration is a […]
Docker Basic Operations – Images and Containers
This article will help you to understand the basic operations of dockers images and containers. Images and containers are two basic components of Docker’s architecture. A container is launched using an image. An image is a fully packed stack which has everything that needed by an application i.e runtime libraries, environment variable, and configuration files. […]
How to Install docker on Redhat Linux (RHEL)- CentOS ?
How to install docker on Redhat Linux (RHEL) and CentOS? How to setup the docker environment to start the first container to start exploring the container world? In this article, we are going to demonstrate the docker community edition deployment on RHEL/CentOS. We will also launch the Docker containers to test the deployment. Docker […]
What is Docker ? How its different from Virtual Machine ?
What is Docker? Docker is a container run time engine. Docker provides the power of operating system using minimal resources. Docker support application development in monolithic situations. In other words, developers can develop the applications, ship the container and deploy it anywhere. The destination could be a virtual machine, physical server or cloud instances (AWS, […]