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Docker

How to Build a Node.js App with Docker

April 21, 2023

This guide shows a step-by-step example to build a Node.js application with Docker.

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How To Install Docker on Ubuntu 20.04 and 22.04

April 6, 2023

Install Docker on Ubuntu 20.04 or 22.04 using the default repository or from the official Docker repository with the help of this step-by-step guide. Installing, starting and running Docker containers is simple and fast with the help of this guide.

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How to Exit a Docker Container

February 2, 2023

Running a command inside a Docker container is a frequently employed action in container management. Once the user finishes working inside the container, they need to exit it before resuming work in their system's shell session. This article shows you how to exit a Docker container.

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10 Docker Alternatives


Docker offers robust security features, speeds up app deployment, and facilitates software management. However, it is not always the best option, especially for use cases that do not require all of the platform's features. This article presents 10 Docker alternatives to help you replace Docker in your workflow.

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How to Install Apache in Docker

January 17, 2023

Docker containers are particularly handy when an application such as a web server needs to preserve its configuration across different environments. This article demonstrates two methods to deploy Apache web server using Docker.

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How to Install Gitea with Docker on Ubuntu

December 29, 2022

Learn to deploy a Gitea code hosting instance using a Docker container. The article also provides the steps to perform initial configuration of the instance and enable SSH access.

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Docker Commands Cheat Sheet

December 7, 2022

Docker has earned a reputation as one of the most popular open-source platforms for application development. It packages apps, its dependencies, and binaries into virtualized environments called containers. This article goes over all the essential Docker commands you will most certainly use while working with containers. In the end, you will also find a downloadable Cheat Sheet Docker commands, for easier reference.

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How to Set Docker Environment Variables

November 24, 2022

Docker environment variables are a practical way of externalizing containerized app configuration. This article shows you how to set Docker environment variables in the Dockerfile, and override them using Docker CLI and Docker Compose.

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How to Install Docker on Rocky Linux

November 2, 2022

Docker is a Platform-as-a-Service tool for containerized app deployments. It uses Docker Engine to create and manage application containers. This tutorial shows you how to install and setup Docker on Rocky Linux.

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How to Fix Docker Permission Denied?

October 27, 2022

The "Permission Denied" error in Docker occurs when a non-root user lacking sufficient privileges attempts to execute a Docker command. This article will present you with six methods to fix the "Permission Denied" error in Docker.

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