Ben De St Paer-Gotch

Author Archives: Ben De St Paer-Gotch

Docker Compose for Amazon ECS Now Available

Docker is pleased to announce that as of today the integration with Docker Compose and Amazon ECS has reached V1 and is now GA! 🎉

We started this work way back at the beginning of the year with our first step – moving the Compose specification into a community run project. Then in July we announced how we were working together with AWS to make it easier to deploy Compose Applications to ECS using the Docker command line. As of today all Docker Desktop users will now have the stable ECS experience available to them, allowing developers to use docker compose commands with an ECS context to run their containers against ECS.

As part of this we want to thank the AWS team who have helped us make this happen: Carmen Puccio, David Killmon, Sravan Rengarajan, Uttara Sridhar, Massimo Re Ferre, Jonah Jones and David Duffey.

Getting started with Docker Compose & ECS

As an existing ECS user or a new starter all you will need to do is update to the latest Docker Desktop Community version ( or greater) store your image on Docker Hub so you can deploy it (you can get started with Hub here Continue reading

Apple Silicon M1 Chips and Docker

Revealed at Apple’s ‘One More Thing’ event on Nov 10th, Docker was excited to see new Macs feature Apple silicon and their M1 chip. At Docker we have been looking at the new hypervisor features and support that are required for Mac to continue to delight our millions of customers. We saw the first spotlight of these efforts at Apple WWDC in June, when Apple highlighted Docker Desktop on stage. Our goal at Docker is to provide the same great experience on the new Macs as we do today for our millions of users on Docker Desktop for Mac, and to make this transition as seamless as possible. 

Building the right experience for our customers means getting quite a few things right before we push a release. Although Apple has released Rosetta 2 to help move applications over to the new M1 chips, this does not get us all the way with Docker Desktop. Under the hood of Docker Desktop, we run a virtual machine, to achieve this on Apple’s new hardware we need to move onto Apple’s new hypervisor framework. We also need to do all the plumbing that provides the core experience of Docker Continue reading

Compose CLI ACI Integration Now Available

Today we are pleased to announce that we have reached a major milestone, reaching GA and our V1 of both the Compose CLI and the ACI integration. 🎉

In May we announced the partnership between Docker and Microsoft to make it easier to deploy containerized applications from the Desktop to the cloud with Azure Container Instances (ACI). We are happy to let you know that all users of Docker Desktop now have the ACI experience available to them by default, allowing them to easily use existing Docker commands to deploy and manage containers running in ACI. 

As part of this I want to also call out a thank you to the MSFT team who have worked with us to make this all happen! That is a big thank you to Mike Morton, Karol Zadora-Przylecki, Brandon Waterloo, MacKenzie Olson, and Paul Yuknewicz.

Getting started with Docker and ACI 

As a new starter, to get going all you will need to do is upgrade your existing Docker Desktop to the latest stable version ( or later), store your image on Docker Hub so you can deploy it (you can get started with Hub here) and then lastly you Continue reading

Pro and Team Subscriptions Embrace Docker Desktop

About a month ago we talked about how we planned to make Docker Desktop more first class as part of our Pro and Team subscriptions. Today we are pleased to announce that with the latest release of Docker Desktop we are launching support for Docker Desktop for Pro and Team users. This means that customers on Pro plans or team members on Team plans will be able to get support outside of the community support in our Github repository, this will include installation support, issues in running Desktop and of course the existing support for Docker Hub. 

Along with this, we have our first Pro feature available in Docker Desktop! For Pro and Team users who have scanning enabled in Docker Hub, you will be able to see your scan results directly in the Docker Dashboard. 

This is the first step in releasing unique features for Pro and Team users on Docker Desktop.

Along with this we are pleased to announce that in Docker Desktop 2.5 we have the GA release of the docker scan CLI powered by Snyk! To find out more about scanning images locally have a read of Marina’s blog post. 

For customers Continue reading

Setting Up Cloud Deployments Using Docker, Azure and Github Actions

A few weeks ago I shared a blog about how to use GitHub Actions with Docker, prior to that Guillaume has also shared his blog post on using Docker and ACI. I thought I would bring these two together to look at a single flow to go from your code in GitHub all the way through to deploying on ACI using our new Docker to ACI experience!

To start, let’s remember where we were with our last Github action. Last time we got to a point where our builds to master would be re-built and pushed to Docker Hub (and we used some caching to speed these up).  

name: CI to Docker Hub
     - "v*.*.*"
   runs-on: ubuntu-latest
       name: Checkout
       uses: actions/[email protected]
       name: Set up Docker Buildx
       id: buildx
       uses: docker/[email protected]
       name: Cache Docker layers
       uses: actions/[email protected]
         path: /tmp/.buildx-cache
         key: ${{ runner.os }}-buildx-${{ github.sha }}
         restore-keys: |
           ${{ runner.os }}-buildx-
       uses: docker/[email protected]
         username: ${{ secrets.DOCKER_USERNAME }}
         password: ${{ secrets.DOCKER_PASSWORD }}
       name: Build and push
       id: docker_build
       uses: docker/[email protected]
         context: ./
         file: ./Dockerfile
         builder: ${{  Continue reading

Docker V2 Github Action is Now GA

Docker is happy to announce the GA of our V2 Github Action. We’ve been working with @crazy-max over the last few months along with getting feedback from the wider community on how we can improve our existing Github Action. We have now moved from our single action to a clearer division and advanced set of options that not only allow you to just build & push but also support features like multiple architectures and build cache.

The big change with the advent of our V2 action is also the expansion of the number of actions that Docker is providing on Github. This more modular approach and the power of Github Actions has allowed us to make the minimal UX changes to the original action and add a lot more functionality.

We still have our more meta build/push action which does not actually require all of these preconfiguration steps and can still be used to deliver the same workflow we had with the previous workflow! To Upgrade the only changes are that we have split out the login to a new step and also now have a step to setup our builder. 

        name: Setup Docker Buildx
        uses: docker/[email protected]

This Continue reading

The Docker Dashboard Welcomes Hub and Local Images

Last year we released the Docker Dashboard as part of Docker Desktop, today we are excited to announce we are releasing the next piece of the dashboard to our community customers with a new Images UI. We have expanded the existing UI for your local machine with the ability to interact with your Docker images on Docker Hub and locally. This allows you to: display your local images, manage them (run, inspect, delete) through an intuitive UI without using the CLI. And for you images in Hub you can now view you repos or your teams repos and pull images directly from the UI. 

To get started, Download the latest Docker Desktop release and load up the dashboard (we are also excited that we have given the dashboard an icon?)

You will be able to see that we have also added a new sidebar to navigate between the two areas and we are planning to add new sections in here soon. To find out more about what’s coming or to give feedback on what you would like to see check out our public roadmap

Let’s jump in and have a look at what we can do…

From Continue reading

Docker Github Actions

In our first post in our series on CI/CD we went over some of the high level best practices for using Docker. Today we are going to go a bit deeper and look at Github actions. 

We have just released a V2 of our GitHub Action to make using the Cache easier as well! We also want to call out a huge THANK YOU to @crazy-max (Kevin :D) for the of work he put into the V2 of the action, we could not have done this without him! 

Right now let’s have a look at what we can do! 

To start we will need to get a project setup, I am going to use one of my existing simple Docker projects to test this out:

The first thing I need to do is to ensure that I will be able to access Docker Hub from any workflow I create, to do this I will need to add my DockerID and a Personal Access Token (PAT) as secrets into GitHub. I can get a PAT by going to and clicking ‘new access token’, in this instance I will call my token ‘whaleCI’

I can then Continue reading

Best practices for using Docker Hub for CI/CD

According to the 2020 Jetbrains developer survey 44% of developers are now using some form of continuous integration and deployment with Docker Containers. We know a ton of developers have got this setup using Docker Hub as their container registry for part of their workflow so we decided to dig out the best practices for doing this and provide some guidance for how to get started. To support this we will be publishing a series of blog posts over the next few weeks to answer the common questions we see with the top CI providers.

We have also heard feedback that given the changes Docker introduced relating to network egress and the number of pulls for free users, that there are questions around the best way to use Docker Hub as part of CI/CD workflows without hitting these limits. This blog post covers best practices that improve your experience and uses a sensible consumption of Docker Hub which will mitigate the risk of hitting these limits and how to increase the limits depending on your use case. 

To get started, one of the most important things when working with Docker and really any CI/CD is to work out when Continue reading

Check out the Azure CLI experience now available in Desktop Stable

Back in May we announced the partnership between Docker and Microsoft to make it easier to deploy containerized applications from the Desktop to the cloud with Azure Container Instances (ACI). Then in June we were able to share the first version of this as part of a Desktop Edge release, this allowed users to use existing Docker CLI commands straight against ACI making getting started running containers in the cloud simpler than ever. 

We are now pleased to announce that the Docker and ACI integration has moved into Docker Desktop stable giving all Desktop users access to the simplest way to get containers running in the cloud. 

Getting started 

As a new starter, to get going all you will need to do is upgrade your existing Docker Desktop to the latest stable version (, store your image on Docker Hub so you can deploy it (you can get started with Hub here) and then lastly you will need to create an ACI context to deploy it to. For a simple example of getting started with ACI you can see our initial blog post on the edge experience.

More CLI commands

We Continue reading

Docker Desktop & WSL 2 – Backport Update

While we have continued to make improvements to our Windows experience on Docker Desktop for users of HyperV, we are excited to see that Microsoft has announced the backport of WSL 2 to Windows version 1903 and 1909. This means that as of today, Docker Desktop Edge users will be able to use Docker Desktop with WSL 2 rather than our legacy HyperV based backend. This is available not only for Windows Pro and Windows Enterprise, but also for Windows Home users. This is the first time that Docker has been available on Windows Home versions 1903 and 1909! ?

This means that these developers will be able to take advantage of WSL 2 and Docker’s integration, allowing developers to store their code within their WSL 2 distro and run the Docker CLI from within this distro. This removes the need to access files stored on the Windows host and provides significant performance improvements for users.

To find out more about using Docker Desktop with WSL 2, check out Simon’s full tips and tricks article. If you want to learn more about how Docker developed the WSL 2 backend you can have a look through our history of the integration Continue reading

Deploying WordPress to the Cloud

I was curious the other day how hard it would be to actually set up my own blog or rather I was more interested in how easy it is now to do this with containers. There are plenty of platforms that host blogs for you but is it really now as easy to just run one yourself?

In order to get started, you can sign up for a Docker ID, or use your existing Docker ID to download the latest version of Docker Desktop Edge which includes the new Compose on ECS experience. 

Start with the local experience

To start I setup a local WordPress instance on my machine, grabbing a Compose file example from the awesome-compose repo.

Initially I had a go at running this locally on with Docker Compose:

$ docker-compose up -d

Then I can get the list of running containers:

$ docker-compose ps
           Name                          Command               State          Ports
deploywptocloud_db_1 --def ...   Up      3306/tcp, 33060/tcp
deploywptocloud_wordpress_1 apach ...   Up>80/tcp

And then lastly I had a look to see that this was running correctly:

Deploy to the Cloud

Great! Now I needed to look at the contents of the Compose file Continue reading

Running a container in Microsoft Azure Container Instances (ACI) with Docker Desktop Edge

Earlier this month Docker announced our partnership with Microsoft to shorten the developer commute between the desktop and running containers in the cloud. We are excited to announce the first release of the new Docker Azure Container Instances (ACI) experience today and wanted to give you an overview of how you can get started using it.

The new Docker and Microsoft ACI experience allows developers to easily move between working locally and in the Cloud with ACI; using the same Docker CLI experience used today! We have done this by expanding the existing docker context command to now support ACI as a new backend. We worked with Microsoft to target ACI as we felt its performance and ‘zero cost when nothing is running’ made it a great place to jump into running containers in the cloud.

ACI is a Microsoft serverless container solution for running a single Docker container or a service composed of a group of multiple containers defined with a Docker Compose file. Developers can run their containers in the cloud without needing to set up any infrastructure and take advantage of features such as mounting Azure Storage and GitHub repositories as volumes. For production cases, you can Continue reading

Creating the best Linux Development experience on Windows & WSL 2

We are really excited to have had Docker Desktop be featured in a breakout session titled “The Journey to One .NET” at MSFT Build by @Scott Hanselman  with WSL 2. Earlier in the his  keynote, we learned about the great new enhancements for GPU support for WSL 2 and we want to hear from our community about your interest in adding this functionality to Docker Desktop. If you are eager to see GPU support come to Docker Desktop, please let us know by voting up our roadmap item and feel free to raise any new requests here as well.

With this announcement, the launch of the Windows 2004 release imminently and Docker Desktop v2.3.02 reaching WSL2 GA , we thought this would be a good time to reflect on how we got to where we are today with WSL 2.

April 2019

Casting our minds back to 2019 (a very different time!), we first discussed WSL 2 with Microsoft in April. We were excited to get started and wanted to find a way to get a build as soon as possible.

May 2019

It turned out the easiest way to do this was to collect a laptop Continue reading

Announcing the Compose Specification

Docker is pleased to announce that we have created a new open community to develop the Compose Specification. This new community will be run with open governance with input from all interested parties allowing us together to create a new standard for defining multi-container apps that can be run from the desktop to the cloud. 

Docker is working with Amazon Web Services (AWS), Microsoft and others in the open source community to extend the Compose Specification to more flexibly support cloud-native platforms like Kubernetes and Amazon Elastic Container Service (Amazon ECS) in addition to the existing Compose platforms. Opening the specification will allow innovation to flourish and deliver more choices to developers, accelerating how development teams build and ship applications.

Currently used by millions of developers and with over 650,000 Compose files on GitHub, Compose has been widely embraced by developers because it is a simple cloud and platform-agnostic way of defining multi-container based applications. Compose dramatically simplifies the code to cloud process and toolchain for developers by allowing them to define a complex stack in a single file and run it with a single command. This eliminates the need to build and start every container manually, saving development Continue reading

Join our new Docker Desktop Developer Preview Program!

Docker Desktop is getting ready to celebrate its fourth birthday in June this year. We have come a long way from our first version and have big plans of what we would like to do next. As part of our future plans we are going to be kicking off a new early access program for Docker Desktop called Docker Desktop Developer Preview and we need your help!

What is this Program about and what are the benefits?

This program is for a small number of heavy Docker Desktop users who want to interact with the Docker team and impact the future of Docker Desktop for millions of users around the world.

As a member of this group we will be working with you to look at and experiment with our new features. You will get direct access to the people who are building Docker Desktop everyday. You will meet with our engineering team, product manager and community leads, to share your feedback, tell us what is working in our new features and how we could improve, and also help us really dig in when something doesn’t work quite right. 

On top of that, you will have a chance to Continue reading

Docker Desktop for Windows Home is here!

Last year we announced that Docker had released a preview of Docker Desktop with WSL 2 integration. We are now pleased to announce that we have completed the work to enable experimental support for Windows Home WSL 2 integration. This means that Windows Insider users on 19040 or higher can now install and use Docker Desktop!

Feedback on this first version of Docker Desktop for Windows Home is welcomed! To get started, you will need to be on Windows Insider Preview build 19040 or higher and install the Docker Desktop Edge

What’s in Docker Desktop for Windows Home?

Docker Desktop for WSL 2 Windows Home is a full version of Docker Desktop for Linux container development. It comes with the same feature set as our existing Docker Desktop WSL 2 backend. This gives you: 

  • Latest version of Docker on your Windows machine 
  • Install Kubernetes in one click on Windows Home 
  • Integrated UI to view/manage your running containers 
  • Start Docker Desktop in <5 seconds
  • Use Linux Workspaces
  • Dynamic resource/memory allocation 
  • Networking stack, support for http proxy settings, and trusted CA synchronization 

How do I get started developing with Docker Desktop? 

For the best experience of developing Continue reading

Docker Desktop release 2.2 is here!

We are excited to announce that we released a new Docker Desktop version today! Thanks to the user feedback on the new features initially released in the Edge channel, we are now ready to publish them into Stable. 

Before getting to each feature into detail, let’s see what’s new in Docker Desktop 2.2:

  • WSL 2 as a technical preview, allowing access to the full system resources, improved boot time, access to Linux workspaces and improved file system performance
  • A new file sharing implementation for Windows, improving the developer inner loop user experience
  • A New Integrated Desktop Dashboard, to see at once glance your local running containers and Compose applications, and easily manage them.

WSL 2 – New architecture 

Back in July we released on Edge the technical preview of Docker Desktop for WSL 2, where we included an experimental integration of Docker running on an existing user Linux distribution. We learnt from our experience and re-architected our solution (covered in Simon’s blog)

This new architecture for WSL 2 allows users to: 

  • Use Kubernetes on the WSL 2 backend
  • Work with just WSL 2/turn off the traditional HyperV VM while working with WSL 2
  • Continue Continue reading

Containers Today Recap: The Future of the Developer Journey

There was amazing attendance at Containers Today in Stockholm a couple of weeks ago. For those who were unable to make it, here is a quick overview of what I talked about at the event in my session around the future of the developer journey. 

Before we talk about what we think will change the journey, we need to think about why it changes. The fundamental goal of any change to the way of working for developers should be to reduce the number of boring, mundane and repetitive tasks that developers have to do or to allow them to reach new customers/solve new problems. Developers create amazing value for companies and provide solutions to customers’ real world problems. But if they are having to spend half of their time working out how to get things into the hands of their customers, then you are getting half the value.

Developer Evolution

The role of developers has changed a lot over the last ~40 years. Developers no longer deploy to mainframes or in house hardware, they don’t do waterfall deployments and not many of them write in machine code. Developers have to now think about web languages and ML, work in Continue reading

5 Things to Try with Docker Desktop WSL 2 Tech Preview

We are pleased to announce the availability of our Technical Preview of Docker Desktop for WSL 2! 

As a refresher, this preview makes use of the new Windows Subsystem for Linux (WSL) version that Microsoft recently made available on Windows insider fast ring. It has allowed us to provide improvements to file system sharing, boot time and access to some new features for Docker Desktop users. 

To do this we have changed quite a bit about how we interact with the operating system compared to Docker Desktop on Windows today: 

To learn more about the full feature set have a look at our previous blog:   Get Ready for Tech Preview of Docker Desktop for WSL 2  and  Docker WSL 2 – The Future of Docker Desktop for Windows.

Want to give it a go?

  1. Get setup on a Windows machine on the latest Windows Insider build. The first step for this is heading over to the Microsoft and getting set up as a Windows Insider: 

  2. You’ll need to install the latest release branch (at least build version 18932) and you will then want to enable the WSL 2 feature in Windows: Continue reading