The Dockerfile is the starting point for creating a Docker image. The file format provides a well-defined set of directives that allow you to copy files or folders, run commands, set environment variables, and do other tasks required to create a container image. It’s...
Engineering
Advanced Dockerfiles: Faster Builds and Smaller Images Using BuildKit and Multistage Builds
Multistage builds feature in Dockerfiles enables you to create smaller container images with better caching and smaller security footprint. In this blog post, I’ll show some more advanced patterns that go beyond copying files between a build and a runtime stage,...
How we test Docker Desktop with WSL 2
Recently we have released a new Edge version 2.2.3.0 of Docker Desktop for Windows. This can be considered as a release candidate for the next Stable version that will officially support WSL 2. With Windows 10 version 2004 in sight we are giving the next version of...
Multi-Platform Docker Builds
This is a guest post from Docker Captain Adrian Mouat who is Chief Scientist at Container Solutions, a cloud-native consultancy and Kubernetes Certified Service Provider. Adrian is the author of "Using Docker," published by O'Reilly Media. He is currently developing...
Awesome-Compose: Application samples for project development kickoff
Software systems have become quite complex nowadays. A system may consist of several distributed services, each one providing a specific functionality and being updated independently. Starting the development of a project of such complexity is sometimes time...
First Docker GitHub Action is here!
We are happy to announce that today Docker has released its first Github Action! We’ve been working with GitHub, looking into how developers have been using GitHub Actions with Docker to set up their CI/CD workflows. The standard flows you’ll see if you look around...
How to deploy on remote Docker hosts with docker-compose
The docker-compose tool is pretty popular for running dockerized applications in a local development environment. All we need to do is write a Compose file containing the configuration for the application’s services and have a running Docker engine for deployment....
Docker Donates the cnab-to-oci Library to cnab.io
Docker is proud and happy to announce the donation of our cnab-to-oci library to the CNAB project 🎉. This project was created last year after Microsoft and Docker moved the CNAB specification to the Linux Foundation’s Joint Development Foundation. At that...
Our Favourite Picks from the KubeCon Europe 2020 Schedule
Last Wednesday, the CNCF released the KubeCon Europe 2020 schedule. There are so many talks at KubeCon it can be daunting even to decide what to go to see! Here are some talks by the team at Docker, and some others we think will be particularly interesting. Looking...