Docker and Kubernetes for React JS developer

Docker packages code and dependencies into a portable container to solve environment disparity. A Docker image contains code, config, and libraries to build a runnable container.

Discover why Docker dominates the industry: rising demand, popularity in Stack Overflow stats, faster, portable containers, and how integrating Docker with Kubernetes boosts career prospects for React developers.

Learn how the docker client pulls images from docker hub, runs containers, and uses commands like docker images and docker container ls, including logging into a registry.

Start an interactive bash session in a docker container with docker run -it, naming the container and image, and verify the running status using docker container ls.

Learn how the docker version and docker info commands reveal client-server architecture, component versions, Kubernetes contexts, and server details like nodes, runtime, storage drivers, and system resources.

Set up a React development environment with create-react-app and start the app using npm start. Clean up the starter project in Visual Studio Code and render a Hello World header.

Add bootstrap to a react app by including bootstrap links in index.html and building a responsive form with email and password fields using a fragment wrapper.

Style a todo app with bootstrap to build a responsive, mobile-first interface featuring a text area, a rounded submit button, gradient backgrounds, borders, and a centered header.

Discover how React state stores component data and triggers rendering in a single-page app, implement an onChange event to capture text input, update state, and log results.

Explore handling form submissions in React using the onSubmit event, an event handler, and controlled components to capture input, display alerts, and build a dynamic to-do list.

Render a React list by wiring a to-do list component with Bootstrap list group, passing items as props, and mapping state items to list items in a class component.

Add todo items to a React JS to-do list by validating input, appending new items to the list, and updating state to re-render the UI.

Pass a delete function as a prop in a React to-do app, wiring a bootstrap danger button in a child component to remove items by index.

Implement a delete button in a React to-do app by filtering out the selected index and updating the state with the spread operator, demonstrating removal of a list item.

Write a dockerfile to build a React app image from a Node.js base, copy dependencies and source, ignore files, and tag with docker build -t app:latest.

Learn to run a Docker image as a container with a custom name and detach flag, verify the React app, and publish the image to Docker Hub for cross-platform access.

Publish your React app as a Docker image on Docker Hub by tagging, logging in, and pushing, then pull and run the image with port mapping to access the app.

Explore Docker container technology to package applications for production and learn how Kubernetes manages container workloads and services for scalable deployments.

Learn to set up a local Kubernetes cluster with minikube, choosing a driver, and running a single-node setup on Windows, Linux, or macOS, without a separate Docker engine.

Define a Kubernetes pod in a yaml with api version, kind, metadata, and spec, attach labels for grouping, and run a Docker image in the cluster.

Explore how Kubernetes replication creates pod replicas to boost reliability, load balancing, and scalability. Use a replication controller and a YAML template to set and maintain the desired replica count.

Explore replica set versus replication controller and learn how to define them in yaml, use set-based selectors, and align replica sets with deployments for reliable, scalable Kubernetes apps.

Discover how Kubernetes deployments manage replica sets to scale pods, roll out updates, or roll back, featuring stricter deployment, rolling update deployment, blue-green deployment, and general deployment.

Learn how to scale in Kubernetes by increasing or decreasing replicas to match demand and optimize costs, including horizontal and vertical scaling concepts.

Learn how to update a Kubernetes deployment with a new Docker image, verify the change via a service, and rollback to a previous version when needed.