How to create a Service in Kubernetes @ProgrammingKnowledge

ProgrammingKnowledge | How to create a Service in Kubernetes @ProgrammingKnowledge | Uploaded June 2023 | Updated October 2024, 5 days ago.
Welcome to our comprehensive tutorial on creating a service in Kubernetes! In this video, we'll guide you through the process of setting up a service to enable seamless communication between different components in your Kubernetes cluster.

Kubernetes is an open-source container orchestration platform that simplifies the management of containerized applications. Services act as an abstraction layer, providing a stable endpoint to access your application's pods, regardless of their dynamic nature.

In this tutorial, we'll cover everything you need to know to create a service in Kubernetes. We'll start by explaining the key concepts behind services and how they fit into the Kubernetes architecture. Next, we'll walk you through the necessary steps to define and deploy a service, including selecting the appropriate service type and configuring service ports.

You'll learn how to leverage labels and selectors to ensure your service routes traffic to the right pods. We'll also demonstrate how to create load balancer services to distribute incoming requests across multiple pods for improved scalability and high availability.

Throughout the tutorial, we'll provide practical examples and best practices to help you understand the nuances of service configuration. We'll also address common troubleshooting scenarios and offer tips to optimize service performance.

By the end of this video, you'll have a solid grasp of how to create and manage services in Kubernetes. Whether you're a beginner or an experienced user, this tutorial will equip you with the knowledge to harness the full power of Kubernetes services in your containerized applications.

Don't forget to subscribe to our channel for more insightful Kubernetes tutorials and updates. Start watching now and take your Kubernetes skills to the next level!

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$How to Add GitHub OAuth2 Login in Node.js | GitHub OAuth2 Authentication with Passport.js (2024) **Title: How to Add GitHub OAuth2 Login in Node.js | GitHub OAuth2 Authentication with Passport.js** https://github.com/harshita795/github-auth-app In this tutorial, learn how to set up GitHub OAuth2 login in your Node.js application using Passport.js. GitHub authentication is a powerful way to allow users to log in using their GitHub accounts, enhancing security and user experience. We’ll go step-by-step through setting up OAuth2 in GitHub, configuring Passport.js in Node.js, and implementing login functionality. By the end of this video, you’ll have a fully functional GitHub OAuth2 login integrated into your Node.js app! ### Prerequisites: - Basic knowledge of Node.js and Express.js - GitHub account to create OAuth app - Passport.js installed in your project ### Steps to Implement GitHub OAuth2 Authentication in Node.js: #### 1. **Set Up GitHub OAuth App**: - Go to [GitHub Developer Settings](https://github.com/settings/developers). - Click **New OAuth App**. - Fill in the details: - **Application name**: Give a name to your app. - **Homepage URL**: Enter the URL where your app is hosted (localhost for local development). - **Authorization callback URL**: `http://localhost:3000/auth/github/callback` (or change the port if your app uses a different one). - Click **Register Application** and take note of your **Client ID** and **Client Secret**. #### 2. **Install Required Packages**: - Open your project in the terminal and install Passport and GitHub strategy: ```bash npm install passport passport-github2 express-session dotenv ``` #### 3. **Configure Passport.js with GitHub Strategy**: - In your main server file (e.g., `app.js` or `server.js`), require and configure Passport: ```javascript const passport = require(passport); const GitHubStrategy = require(passport-github2).Strategy; const session = require(express-session); require(dotenv).config(); app.use(session({ secret: your_secret_key, resave: false, saveUninitialized: true, })); app.use(passport.initialize()); app.use(passport.session()); ``` - Set up Passport’s GitHub strategy: ```javascript passport.use(new GitHubStrategy({ clientID: process.env.GITHUB_CLIENT_ID, clientSecret: process.env.GITHUB_CLIENT_SECRET, callbackURL: http://localhost:3000/auth/github/callback }, (accessToken, refreshToken, profile, done) = { // Here you would find or create a user in your database return done(null, profile); } )); passport.serializeUser((user, done) = done(null, user)); passport.deserializeUser((obj, done) = done(null, obj)); ``` #### 4. **Set Up Routes**: - Define routes for authentication: ```javascript // Redirect to GitHub for authentication app.get(/auth/github, passport.authenticate(github, { scope: [user:email] })); // GitHub callback URL app.get(/auth/github/callback, passport.authenticate(github, { failureRedirect: / }), (req, res) = { res.redirect(/profile); // Redirect to profile page after login }); // Route to log out app.get(/logout, (req, res) = { req.logout(); res.redirect(/); }); ``` #### 5. **Create Profile and Logout Pages**: - Set up a profile route to show user information: ```javascript app.get(/profile, (req, res) = { if (!req.isAuthenticated()) return res.redirect(/); res.send(`Hello, ${req.user.username}!`); }); ``` #### 6. **Set Environment Variables**: - In a `.env` file, store your GitHub Client ID and Client Secret: ```plaintext GITHUB_CLIENT_ID=your_client_id GITHUB_CLIENT_SECRET=your_client_secret ``` #### 7. **Test GitHub Login**: - Start your Node.js server and go to `http://localhost:3000/auth/github`. - You’ll be redirected to GitHub to authorize access, and then back to your app’s profile page once authentication is successful. ### Summary: After setting up these steps, you’ll have GitHub OAuth2 login functionality integrated with Passport.js in your Node.js app. You can now allow users to log in with their GitHub credentials securely! ### Troubleshooting Tips: - **Invalid Callback URL**: Make sure the callback URL in GitHub OAuth App settings matches the callback URL in your code. - **Environment Variables Not Loading**: Verify your `.env` file and make sure you’re using `require(dotenv).config()` at the top of your main file. **Helpful Resources**: - GitHub OAuth Documentation: [GitHub OAuth](https://docs.github.com/en/developers/apps) - Passport.js Documentation: [Passport.js](http://www.passportjs.org/) #GitHubOAuth #NodeJS #PassportJS #Authentication #GitHubLogin #WebDevelopment #OAuth2 #NodeJSTutorial #JavaScript$