Docker in practice and production — 2coffee.dev

Docker in practice and production

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- 🏷️ node.js
- 🏷️ docker
"Dockerizing" a Node.js Application

There are many ways to deploy a Node.js application in practice. The simplest one is just running the node index.js command to start it. However, to keep the application running continuously, we need a process management tool, such as pm2. Using pm2, we can initialize a Node process and keep it running until we intentionally stop it. Moreover, it allows us to scale the application from 1 instance to 2, 3, 4... instances, as long as your server can handle it. pm2 also offers many other features that you can explore in its documentation. Recently, the keywords "Dockerize" or "Containerize" have been gaining popularity in the online community. In simple terms, it means "packaging" the application into a single "file" called an Image. After the application is packaged, it can be launched with Docker using just a few commands...

🕝 3 years ago
- 🏷️ docker
Understanding the layer caching mechanism when building a Docker image for better Dockerfile writing

Docker has become increasingly popular in the IT community, with more and more people using it. The frequency of Docker appearing in job descriptions has also increased. My company uses Docker, my projects use Docker, projects that I work on for others also use Docker... Docker has emerged as a valuable "packaging" solution for the automation revolution. However, there has always been a time-consuming issue with building Docker images. The size of a Docker "image" can sometimes reach several gigabytes, making Docker a "hard drive killer"....

🕝 3 years ago
Series
- 🏷️ docker
Series on Docker in Practice & Production - Network in Docker

One of the reasons that Docker has become powerful is its networking system, which allows containers to easily connect with each other, regardless of whether they are running in a Docker environment or on different Docker platforms like Linux, Windows, or MacOS. To understand this in more detail, let's dive into the topic of networking in Docker...

🕝 4 years ago
Series
- 🏷️ docker
Series on Docker in Practice & Production - Using Docker Compose to Start Multiple Services

docker run only allows starting one container at a time, which can be challenging and complex when your application needs to start multiple containers simultaneously. Additionally, manually executing individual commands can be error-prone. Imagine having a stack with multiple images - should you run docker run n times...

🕝 4 years ago
Series
- 🏷️ docker
Series on Docker in Practice & Production - Dockerfile to create an image

As mentioned in the previous article, an image is a file used to create a container. It is also the file that needs to be built in order to run your application. To build an image, you use the following command...

🕝 5 years ago
Series
- 🏷️ docker
Series on Docker in practice & production - Basic components of Docker and common concepts

A container is an isolated process running on a server with Docker installed. It makes use of kernel namespaces and cgroups, which have long been features in Linux. Docker just makes it easier to access and use these features. To put it in simpler terms, each application you run is contained within its own container and is independent of other containers...

🕝 5 years ago
Series
- 🏷️ docker
Series on Docker in Practice & Production - What Makes Docker So Popular?

This is a series of articles talking about Docker, including the basic knowledge of Docker, how to use it, and the process of releasing a production product using Docker. The articles are based on my personal experiences in learning and working with Docker. I sincerely hope that you will listen and provide feedback if there are any mistakes. Thank you very much.

🕝 5 years ago

Hello, I'm Hoai

Dev who tells stories ✍️ and builds products 🚀