Linux Tips, Hacks, Tricks, and Tutorials
In the world of modern cloud-native applications, Kubernetes has become the go-to platform for container orchestration. Its ability to manage large-scale deployments, automate operations, and optimize resources is unmatched. However, the true power of Kubernetes lies in its redundancy mechanisms, which ensure that applications remain highly available, even in the face of failures. In this […]
Updating third-party SSL certificates on GitLab involves replacing the existing certificate files with the new ones and reconfiguring GitLab. Here’s how to do it 1. Obtain New SSL Certificates You can use my CSR Generator to generate a CSR and acquire the SSL certificate. – Acquire the updated SSL certificate and private key from your […]
To enable Let’s Encrypt SSL for GitLab, follow these steps. Ensure that GitLab is configured properly and you have root access to your GitLab instance. The steps apply to GitLab’s Omnibus installation. 1. Ensure Prerequisites A publicly accessible domain name pointing to your GitLab server. Port 80 (HTTP) and port 443 (HTTPS) open on your […]
Git is a powerful version control system that every developer should know. Whether you’re collaborating with others or managing your own projects, these 25 Git commands will help you navigate and control your codebase efficiently. 1. git init Initializes a new Git repository in your project directory. git init 2. git clone Clones an existing […]
Pre Setup Once you’ve gained access to your terminal it might be wise to spend ~1 minute to setup your environment. You could set these: alias k=kubectl # will already be pre-configured export do=”–dry-run=client -o yaml” # k create deploy nginx –image=nginx $do export now=”–force –grace-period 0″ # k delete pod x $now Vim The […]
Kubectl autocomplete BASH source <(kubectl completion bash) # set up autocomplete in bash into the current shell, bash-completion package should be installed first. echo “source <(kubectl completion bash)” >> ~/.bashrc # add autocomplete permanently to your bash shell. You can also use a shorthand alias for kubectl that also works with completion: alias k=kubectl complete -o default […]
Introduction Kubernetes is a famous container orchestration tool that is very popular in modern software development. If you are using Kubernetes, you must have used Kubectl, which is the command line tool to manage your Kubernetes applications. This guide will walk you through the most frequently used commands for Kubectl. Not only will we discuss […]
The HashiCorp repository contains other non-Terraform packages that will be available for installing after you add the repository. Follow the steps to install Terraform from the official HashiCorp repository on a CentOS system. 1. Install the yum-utils tools: sudo yum install -y yum-utils 2. Add the HashiCorp repository: sudo yum-config-manager –add-repo https://rpm.releases.hashicorp.com/RHEL/hashicorp.repo 3. Finally, install Terraform using […]
Gitlab admin password can be changed easily by using GitLab-rails command. We may have chance of forgetting GitLab admin password, so if we do we actually don’t need to reinstall GitLab just follow the simple steps to reset your GitLab admin password. This tutorial covers the ground on resetting the admin password on Gitlab. execute […]
Configure jenlkins repo. sudo wget -O /etc/yum.repos.d/jenkins.repo \ https://pkg.jenkins.io/redhat-stable/jenkins.repo sudo rpm –import https://pkg.jenkins.io/redhat-stable/jenkins.io-2023.key sudo yum upgrade # Add required dependencies for the jenkins package sudo yum install fontconfig java-17-openjdk sudo yum install jenkins sudo systemctl daemon-reload Weekly release A new release is produced weekly to deliver bug fixes and features to users and plugin developers. […]