In modern IT, automation and efficiency are crucial. Terraform and Ansible are leading Infrastructure as Code (IaC) tools, each with unique strengths. Terraform excels at provisioning cloud infrastructure across multiple providers using a declarative language, while Ansible focuses on configuration management and application deployment through agentless automation. Terraform Overview Terraform, developed by HashiCorp, allows…
In this article, I will guide you with the steps on how to provision an instance (VM) in AWS Cloud by using Terraform code and a CICD pipeline that is GitHub Action. But before proceeding further, let me give you a brief overview of Terraform and GitHub Action. Terraform Terraform is an open-source Infrastructure…
In Linux, ensuring persistent device names for storage volumes is crucial, especially in environments where device names can change across reboots or when new devices are added. This persisting mapping become more crucial if you want to provision raw storage volume for Oracle ASM disks. There are two common methods to achieve this persistence either…
Linux, like other operating systems, has an efficient and affective memory management for managing memory hungry Application or database. RAM as you know is a vital part for Operating systems for storing code and data, in Linux it uses memory cache and buffer for improving the system performance. If I talk bit more about memory…
Variables or Vars are used to store the data which is further used by ansible playbook. These variables can either take input from user or it can also be stored in YAML or INI file as well like main.yml or inventory. Variables stored in either playbook or in separate YAML or INI format file can…
The PKCS#11 feature in ssh-agent in OpenSSH before 9.3p2 has an insufficiently trustworthy search path, leading to remote code execution if an agent is forwarded to an attacker-controlled system. (Code in /usr/lib is not necessarily safe for loading into ssh-agent.) NOTE: this issue exists because of an incomplete fix for CVE-2016-10009. Source Definition: CVE-2023-38408 at…
Red Hat Ansible Automation Platform (AAP) or Ansible Tower has become de facto Automation Tool for deploying the Automation projects to automate the System Administration tasks such as configuration management, application deployment, provisioning, orchestration, and continuous delivery. Although AAP and Ansible Tower are designed to run on large scale Infrastructure environment but sometime running complex…
Developers often face issues while writing their codes for Linux and Unix OSs from their Windows laptop. Most problems occurs when developers codes those programs or scripts which use indentation like Python and Ansible as these languages follow strict indentation rules and may create errors with incorrect indentation while running the codes or during lint…
In my previous post I had written on how to convert AWS EC2 On Demand (OD) instance to Reserve Instance (RI) for running dedicated and heavy traffic based website like blog or any ecommerce website which require high configuration, but if your website does not have much traffic or you do not want high compute…
Huge Pages In x86 Architecture, memory pages are like textbook pages where CPU use those pages for reading and writing them in virtual memory for addressing computing requirement. Technically, I can say it is a fixed size block of virtual memory which is defined as pages that has corresponding entry in page table and further…
