Docker

Deploying updates to containerized applications using Docker Compose is a common practice in modern software delivery pipelines. However, a simple mistake in the deployment script can cause unwanted downtime, interrupting services for end users. This article explores how to structure your Docker Compose deployment process to avoid downtime, with a

Managing Docker images efficiently is crucial, especially if you work on multiple projects or run long-lived servers. Over time, unused images accumulate, consuming significant disk space and cluttering your environment. Fortunately, Docker provides a handy command to clear these unnecessary images: docker image prune -a --filter "until=72h"

In the world of Docker Compose, defining service dependencies is easy — just list them under depends_on. But if you’ve ever run a PHP app, Directus, or Ghost CMS that talks to MySQL, you might have hit this problem: “My app container started fine... but immediately crashed with a

Docker makes it easy to containerize and run services, but with convenience often comes oversight—especially when it comes to networking and port exposure. One of the most common mistakes is this innocent-looking line in your docker-compose.yml: ports: - "3000:3000" While it may work perfectly for

When working with Docker, one of the most common commands you’ll use is docker build. This command creates a Docker image from a Dockerfile, and while it seems straightforward, there are several optimizations and configurations that can improve both efficiency and debugging. One such option is --progress=plain, which

When working with Docker, networking plays a crucial role in enabling communication between containers, as well as between containers and the host machine. This article explores the key concepts of Docker networking, clarifies some common misconceptions, and highlights additional points and best practices for effective container networking. 1. The Role