If you are interested in early access, sign up for our Developer Preview program. Thanks to the positive support we received on the subscription updates, we’ve started working on Docker Desktop for Linux which is the second-most popular feature request in our public roadmap. Docker handles the complex setup and allows you to focus on writing the code.
And if you need any help, you can post in our support forums, or post a question on StackOverflow.Accelerating new features in Docker Desktopĭocker Desktop helps you build, share, and run containers easily on Mac and Windows as you do on Linux. If you want to learn more about Docker Toolbox and Docker Compose, check out the Docker documentation. You can then either remove them one-by-one in Kitematic, or with a single command in the terminal: To shut the app down, go back to the Quickstart Terminal where you launched the app and press Ctrl-C to stop the containers.
There you have it: you’ve gone from zero to a live development environment, running a complex multi-container application using Python, Redis, Java, Postgres and Node.js without having to install any of them on your computer. Save both files, then refresh both browser tabs. You can also make the same change in result-app, by editing index.html under views. To try this out, open up app.py in the voting-app directory and change the voting candidates to something other than “Cats” and “Dogs” – for example, “Star Trek” and “Star Wars”. This makes it really easy to make incremental changes to those apps and see the results immediately when you refresh the browser.
Note that in docker-compose.yml, the voting-app and result-app services mount their code inside the containers as volumes. You can also browse the code for the Python voting app, Java worker and Node.js results app. You’ll see that it defines five services, using either images straight from the Docker Hub or build directories containing Dockerfiles. Navigate to the directory where the app lives (you’ll find it in your home directory under example-voting-app) and open docker-compose.yml. Now that the app is running, it’s worth having a look at the code. You should see your vote reflected by a 100% turnout. Next, return to Kitematic, click on voteapps_result-app_1, and open it in the browser just as you did with the voting app. You’ll be able to vote for either cats or dogs. Kitematic will show its logs, as well as a web preview.Ĭlick the arrow button above the web preview to open the voting app in a browser. You should see the five containers running in the left-hand column.Ĭlick on voteapps_voting-app_1. To see the containers running, open Kitematic. Docker Compose will pull all the images it needs from the Docker Hub, build the images for the voting app, results app and worker, create all five containers and finally stream their output to the terminal. Next, enter the directory where the app’s source code lives:
Run the following command and press Enter to download the source code for the demo app: When it’s finished, you will see an ASCII-art whale and a command prompt. It will create and start a VirtualBox VM running Docker Engine, then configure the command-line environment so that you can talk to it. It will place two shortcuts on your desktop: Kitematic and Docker Quickstart Terminal. The Toolbox installer will install VirtualBox, Docker Engine, Docker Machine, Docker Compose and Kitematic. To get started, first download and install Docker Toolbox. Here are the steps to reproduce the demo: I then used Kitematic to examine the running app, and showed how I can quickly make changes to it. In the demo I created and ran the containers using Docker Compose, which installs as part of Docker Toolbox, and is now available for the first time on Windows.