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The Docker extension makes it easy to build, manage and deploy containerized applications from Visual Studio Code.

This page provides an overview of the Docker extension capabilities; use the side menu to learn more about topics of interest. If you are just getting started with Docker development, read about Docker application development first to understand key Docker concepts.

Installation

Install Docker on your machine and add it to the system path.

On Linux, you should also enable Docker CLI for the non-root user account that will be used to run VS Code.

To install the extension, open Extensions view (Ctrl+Shift+X), search for docker to filter results and select Docker extension authored by Microsoft.

Editing Docker files

You can get IntelliSense when editing your Dockerfile and docker-compose.yml files, with completions and syntax help for common commands.

In addition, you can use the Problems panel to view common errors for Dockerfile and docker-compose.yml files.

Generating Docker files

You can add Docker files to your workspace by opening the Command Palette (F1 key) and using Docker: Add Docker Files to Workspace command. The command will generate Dockerfile and .dockerignore files and add them to your workspace. The command will also query you if you want the Docker Compose files added as well; this is optional.

The extension recognizes workspaces that use most popular development languages (C#, Node.js, Python, Ruby, Go and Java) and customizes generated Docker files accordingly.

Docker view

The Docker extension contributes a Docker view to VS Code. The Docker view lets you examine and manage Docker assets: containers, images, volumes, networks, and container registries. If the Azure Account extension is installed, you can browse your Azure Container Registries as well.

The right-click menu provides access to commonly-used commands for each type of asset.

You can rearrange the Docker view panes by dragging them up or down with a mouse and use the context menu to hide or show them.

Docker commands

Many of the most common Docker commands are built right into the Command Palette:

You can run Docker commands to manage images, networks, volumes, image registries and Docker Compose. In addition, the Docker: Prune System command will remove stopped containers, dangling images, and unused networks and volumes.

Using image registries

You can display the content and push/pull/delete images from Docker Hub and Azure Container Registry:

An image in an Azure Container Registry can be deployed to Azure App Service directly from VS Code—see Deploy images to Azure App Service page. For more information about how to authenticate to and work with registries see Work with container registries page.

Debugging services running inside a container

You can debug services build using .NET (C#) and Node.js that are running inside a container. The extension offers custom tasks that help with launching a service under the debugger and with attaching the debugger to a running service instance. For more information see Debug container application and Extension Properties and Tasks pages.

Azure CLI integration

You can start Azure CLI (command-line interface) in a standalone, Linux-based container with Docker Images: Run Azure CLI command. This allows access to full Azure CLI command set in an isolated environment. See Get started with Azure CLI page for more information on available commands.