Tiempo de lectura: 2 minutosWhat is Docker? Docker is an open-source platform that automates the deployment of applications within software containers. These containers encapsulate all the necessary dependencies for an application to run efficiently in any environment, from development to production. Unlike traditional virtual machines, Docker containers do not include a complete operating system, making them extremely lightweight and … Read more
Tiempo de lectura: < 1 minutoToday we’re going to learn how to delete the Docker image when performing a Docker Compose down to then regenerate an update without generating garbage. The command we should use to stop the container and delete the associated image is: docker-compose down –rmi all This will remove the associated images of that Docker Compose. To … Read more
Tiempo de lectura: < 1 minutoToday we’re going to learn how to create a handler to redirect PHP errors to the Linux or Docker console. The first thing we need to do is to create a handler, we can call it exception_handler.php. And let’s add the following: <?php function handleException($exception) { // Get information about the exception $message = ‘ERR: … Read more
Tiempo de lectura: < 1 minutoToday we’re going to learn how we can install Docker and Docker Compose on Debian very quickly. First, we add the Debian repository keys. # Add Docker’s official GPG key: sudo apt-get update sudo apt-get install ca-certificates curl sudo install -m 0755 -d /etc/apt/keyrings sudo curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc sudo chmod a+r /etc/apt/keyrings/docker.asc # … Read more
Tiempo de lectura: < 1 minutoTo maintain our Docker system, we need to consider that the Build cache can fill up with unused data. In this case, we have 31.24 Gigabytes of cache. To remove it, we’ll need to use the following command: docker builder prune -a Or force deletion with: docker builder prune -a –force Clean manually: If necessary, … Read more
Tiempo de lectura: < 1 minutoIn this tutorial, we will learn how to use Docker to deploy a basic Python web application using the Flask framework. :snake: Step 1: Project Structure Create a new folder named “MyAppFlask” in your project directory and navigate to it: mkdir ~/projects/MyAppFlask cd ~/projects/MyAppFlask Step 2: Flask Application Code Create a file named app.py with … Read more
Tiempo de lectura: < 1 minutoHello, today I’m going to share a very useful container for generating a React build. It already contains everything needed to generate it. Additionally, it is compatible with Vite.js. The first thing we are going to do is create the file docker-compose.yml version: ‘3.1’ services: react-app: container_name: react-app build: context: . dockerfile: Dockerfile volumes: – … Read more
Tiempo de lectura: < 1 minutoLet’s install Docker Compose on Ubuntu by following the official Docker website instructions. Update dependencies and install necessary packages: sudo apt-get update sudo apt-get install ca-certificates curl gnupg sudo install -m 0755 -d /etc/apt/keyrings curl -fsSL https://download.docker.com/linux/ubuntu/gpg sudo gpg –dearmor -o /etc/apt/keyrings/docker.gpg sudo chmod a+r /etc/apt/keyrings/docker.gpg # Add the repository to Apt sources: echo \ … Read more
Tiempo de lectura: 4 minutosIf your Docker Registry requires authentication with a username and password, you’ll need to provide those credentials to the Kubernetes cluster so it can access the registry images during deployment. Here’s an example of how you can do it: Using Docker Compose with Docker Registry with Authentication Let’s assume your original Docker Compose looks like … Read more
Tiempo de lectura: 5 minutosToday, we’re going to learn, with an example, how to migrate a Docker Compose (https://www.docker.com/) setup to Kubernetes (https://kubernetes.io/). First, let me explain what the two mentioned technologies are: Docker Compose: Docker Compose is a tool that allows you to define and run multi-container Docker applications. With Docker Compose, you can describe the entire configuration … Read more
