How To Dev

Introduction DevOps is a combination of development (Dev) and operations (Ops), aimed at uniting people, processes, and technology to enhance the software development lifecycle. Here are some key aspects of DevOps: Collaboration and Communication: DevOps fosters a culture where development, IT operations, quality engineering, and security teams work together seamlessly. Continuous Integration and Continuous Delivery (CI/CD): These practices automate the integration and delivery of code changes, ensuring faster and more reliable software releases. Infrastructure as Code (IaC): This approach involves managing and provisioning computing infrastructure through machine-readable scripts, rather than physical hardware configuration. Monitoring and Logging: Continuous monitoring and logging help teams to detect issues early and maintain system reliability. Automation: Automating repetitive tasks reduces errors and increases efficiency, allowing teams to focus on more strategic work. By impleme...

Introduction Kubernetes (often abbreviated as K8s ) is an open-source system designed to automate the deployment, scaling, and management of containerized applications. This page serves as a collection of articles related to Kubernetes (K8s) , including theoretical concepts and practical guides on using Kubernetes to set up essential tools for the software development process. I will continue to update this series with new articles as ideas come to mind, to ensure the series becomes more comprehensive. The articles are arranged in increasing order of difficulty to make it easier for you to follow. If you have time, it's recommended that you start from the beginning of the series to acquire the necessary knowledge and information that will prepare you for the subsequent articles. Key Topics Covered in This Series Basic Knowledge : Fundamental concepts, common commands, etc. Resources : Pod, Deployment, Service, StatefulSet, Ingress, etc. Pod Autoscaler : Horizontal and Vertical sc...

Introduction In this guide, I will walk you through deploying a NodeJS Typescript application to Google App Engine (GAE) . GAE offers a straightforward and quick deployment process for various programming languages. If you're developing your NodeJS app using JavaScript , deploying it is pretty straightforward. However, if you're using Typescript , there's an extra step you'll need to take, which I'll explain here. Prerequisites Before we proceed, ensure you have the following: A Google Cloud account with Google App Engine enabled. The gcloud CLI installed. Creating a NodeJS Typescript Project First, create a file named ` src/main.ts ` with the following content: import express from 'express' const app = express () const port = 8080 app . get ( '/' , ( req , res ) => { res . send ( 'This is NodeJS Typescript Application! Current time is ' + Date . now ()) }) app . listen ( port , () => { console . log ( `Server is runn...

Introduction to GKE Google Kubernetes Engine (GKE) is a managed Kubernetes service provided by Google Cloud Platform , facilitating simple and efficient deployment of Docker images. We only need to provide some configuration for the number of nodes, machine types, and replicas to use. Some Concepts Cluster A Cluster is a collection of Nodes where Kubernetes can deploy applications. A cluster includes at least one Master Node and multiple Worker Nodes . The Master Node is used to manage the Worker Nodes . Node A Node is a server in the Kubernetes Cluster. Nodes can be physical servers or virtual machines. Each Node runs  Kubernetes , which is responsible for communication between the Master Node and Worker Node , as well as managing Pods and containers running on it. Pod A Pod is the smallest deployable unit in Kubernetes . Each Pod contains one or more containers, typically Docker containers. Containers in the same Pod share a network namespace, meaning they have the ...

Introduction This article provides simple step-by-step instructions for those who are new to Google Cloud Platform (GCP) and Google Kubernetes Engine (GKE) . I'll guide you through using  GKE  to create clusters and deploy nginx . The instructions below will primarily use gcloud  and kubectl  to initialize the cluster, which is more convenient than manual management on the Google Cloud interface. Prerequisites First, you need to prepare the following: Have a GCP account with permission to use Cloud services. If you're new, you'll get a $300 free trial to use for 90 days . Create a new GCP project. Enable Compute Engine and Kubernetes Engine services. Install Google Cloud SDK and kubectl For this installation step, refer to the GCP documentation for instructions tailored to your operating system. Once installed, execute the following commands to check if gcloud  and kubectl  are installed: gcloud version kubectl version If you see the version resul...