Tech with Chay

Undoing Git Commits: Revert and Reset Changes

Chay published on 2022-10-31 included in Git

You’ve just committed something. Now what? When you’re working on a project in Git, you may run into situations where you have to revert back to an earlier version of a file or even the entire branch. Learn how to revert commits with Git. In this tutorial, we’ll cover how to revert changes using Git. To revert a single change, you can simply type ‘revert’ followed by the commit number. Let us explain in detail.

Docker Definitions

Chay published on 2022-10-20 included in Docker

Docker is an open source container orchestration system based on LXC technology. It allows developers to deploy applications by packaging them up as containers. Discover how Docker makes applications easier to manage, faster to develop and more secure. In this article we’ll explore Docker’s architecture, user interface and commands.

Docker Commands

Chay published on 2022-10-20 included in Docker

If you’re new to Docker and need list of docker commands or you need a revise on the commands, this post is for you. We’ve listed out few Docker commands to get started with. Pull and Start Containers docker images or docker image ls - List all the local images in your machine. docker pull imagename - Pulls an image from docker hub. Does not create any containers from it.

Docker Containers

Chay published on 2022-10-20 included in Docker

Containers allow software developers to build, run and manage applications efficiently from one place. They allow you to easily create isolated environments so that you don’t accidentally kill or corrupt data. Containers give you the flexibility to run multiple apps side by side without worrying about conflict. Containers are not just for developers anymore. Learn more about containers in this article.

Terraform Depends On

Chay published on 2022-10-14 included in Terraform

Terraform is an open source tool for managing infrastructure as code. It allows you to change resources without having to manage them by hand. But what if you want to wait for a resource deployment until some other resource is deployed? This is possible by using depends on parameter in the Terraform script. In this tutorial, we will explain you what terraform depends on is all about.

Packer Variables

Chay published on 2022-10-13 included in Packer

There are different ways in which you can pass variables into Packer template. In this tutorial, we will explain all different ways you can pass variables in to your Packer template.

Packer Sample Script

Chay published on 2022-10-12 included in Packer

In this tutorial, we will explain about a sample script to create an instance, deploy software and create an image from it. Before you run the script, make sure to install aws cli and add your AWS access key and secret key in ~/.aws/credentials file or checkout the Packer Variables tutorial to know different ways to use your AWS credentials with Packer. Simple Packer script to create an instance 1 2 3 4 5 6 7 8 9 { "builders": [{ "type":"amazon-ebs", "source_ami": "ami-12345", "instance_type": "t2.

Packer Definitions

Chay published on 2022-10-12 included in Packer

If you’re looking for Packer definitions, then you are looking at the correct article. In this article, we will discuss some basic Packer components and definitions. Let’s jump right in. Packer Components Packer templates consist of 3 components: Builders: [Builders](Builders | Packer by HashiCorp) are used to create machine images as part of image creation process. Builders connect to your cloud/on-prem environment using the access keys, secret keys etc…, connect to your infrastructure and create the template.

Packer Introduction

Chay published on 2022-10-11 included in Packer

Do you want to start learning Packer, but don’t know where to start? Don’t worry, we got you covered. In this article, we will explain what is packer all about, and its uses.

Jenkins Artifacts and Fingerprint

Chay published on 2022-09-21 included in Jenkins

Do you know, with Jenkins you can retrieve an output from Jenkins and use it in other pipeline jobs. In this tutorial, we will explain about the same - Jenkins Artifacts and Fingerprint.