Create a development container using Visual Studio Code Remote Development (2023)

ÖContainers for Visual Studio code developmentExtension allows you to use aDocker-Containeras a complete development environment. You can use it to open any folder or repository in a container and use the full functionality of Visual Studio Code. Adevcontainer.jsonFile in your project tells VS Code how to access (or create) adevelopment containerwith a well-defined tool and runtime stack. This container can be used to run an application or separate tools, libraries, or runtimes required to work with a code base.

Path to create a development container

In this document, we will walk through the steps to create a development container (dev) in VS Code:

  1. create adevcontainer.json, which describes how VS Code should start the container and what to do after connecting.
  2. Make and persist changes to the development container using a Dockerfile, e.g. B. Installing new software.
  3. Configure multiple containers via Docker Compose.
  4. As you make changes, create your development container to ensure the changes take effect.

After each of the above steps, you will have a fully functional development container and can proceed to the next step in this tutorial to add more functionality or to finish and continue working in the current development environment.

Note: The Dev Containers extension has aDevelopment Container: Add development container configuration files...Command that allows you to select a predefined container configuration from a list. If you prefer to have a full development container out of the box instead of thedevcontainer.jsonand Dockerfile walkthrough you can skipAutomate the creation of development containers.

Create a devcontainer.json file

The configuration of the VS Code container is done in adevcontainer.jsonArchive. This file is similarlaunch.jsonFile for debug configurations but used to start (or attach) your development container. The development container configuration is located at.devcontainer/devcontainer.jsonor as saved.devcontainer.jsonFile (note the dot prefix) in the root of your project.

You can use an image as a starting point for yoursdevcontainer.json. An image is like a minidisk drive with a set of tools and an operating system preinstalled. You can get images from a container registry, which is a collection of repositories that store images. Here's a simple exampledevcontainer.jsonuses the prebuilt TypeScript and Node.js VS Code Development ContainerBild:

{ "Bild":""}

You can change your configuration to do things like:

  • Install additional tools like Git in the container.
  • Installs extensions automatically.
  • Forward or publish additional ports.
  • Define runtime arguments.
  • reuse orExtend your existing Docker Compose setup.
  • add moreAdvanced container setup.

For this example, if you want to install theExtension for code spell checkingin your container and automatically forward port 3000, yourdevcontainer.jsonit would look like this:

{ "Bild":"", "Adjustments": { "vscode": { "extensions": ["streetsidesoftware.code-spellcheck"]}}, "forwardPorts": [3000]}

Monitoring:Additional configuration is already added to the container based on what is included in the base image. For example, we added thestreetsidesoftware.code-spellcheckExtension above, and the container is also included"dbaeumer.vscode-eslint"Ifthis is This is done automatically during precompilation with devcontainer.json, which you can read more about atStem section.

with abovedevcontainer.json, your development container is functional and you can connect to it and start developing. Try theDev Container: Don't rebuild a containerCommand:

Create a development container using Visual Studio Code Remote Development (1)

After running this command, when you restart VS Code, you'll find yourself in a Node.js and TypeScript development container with port 3000 forwarded and the ESLint extension installed. Once connected, watch the green remote indicator to the left of the status bar to indicate that you are connected to your development container:

Create a development container using Visual Studio Code Remote Development (2)

Additional development container scenarios

Through adevcontainer.jsonfile you can:

  • Spin a standalone container to isolate your toolchain or speed up setup.
  • Working with an application deployed in an image-defined containerDockerfile, orDocker composition.
  • Use Docker or Kubernetesfrom a development container to build and deploy your application.

Sedevcontainer.jsonsupported workflows don't meet your needs, you can tooappend to an already running container.

Top:Want to use a remote Docker host? see theDevelop on a remote Docker hostArticle for configuration details.

install additional software

You may want to install additional software in your development container. Once VS Code is connected to the container, you can open a VS Code terminal and run any command on the operating system inside the container. This allows installing new command line utilities and activating databases or application services from within the Linux container.

Most container images are based on Debian or Ubuntu, with thefitorapt-getCommand is used to install new packages. You can learn more about the commandin the Ubuntu documentation. Alpine images include asimilarapkcommandwährend CentOS / RHEL / Oracle SE / Fedora-ImagesuseYummyorrecentlydnf.

(Video) VS Code Remote Container development

The documentation for the software you are trying to install often has specific instructions, but you may not need to prefix commandssudoif you run the container as root.

For example:

# When run as rootapt-get updateapt-get install <pacote>

As long as you run as root, you can install the softwaresudoconfigured in your container. All predefined containers havesudoconfigure, but theAdd a non-root user to a containerThe article can help you configure this for your own containers. Regardless of whether you install and configuresudo, you can use it if you run it as any user, including root.

# If sudo is installed and configuredsudo apt-get updatesudo apt-get install <pacote>

Suppose you want to install Git. You can run the following commands in VS Code's built-in terminal:

# If sudo is installed and configuredsudo apt-get update# Install Gitsudo apt-get install git

You can also use the"Resources"property onedevcontainer.jsonInstall tools and languages ​​from a predefined setresourcesor even your own.

For example, you can install the latest version of Azure CLI as follows:

"Resources": { „“: { "Execution":"Latest"}}

see theFunctional specification of the development containerfor more details.


When editing the content of.devcontainerYou must recreate folders for the changes to take effect. Use theDevelopment container: Rebuild containerCommand for your container to update.

However, if yourebuildthe container, you mustreinstallanything you installed manually. To avoid this problem, you can use thepostCreateCommandproperty onedevcontainer.json.

ÖpostCreateCommandThe actions are run as soon as the container is created, so you can also use the property to run commands likeinstall npmor to run a shell script in your source tree (if you have it mounted).

"postCreateCommand":"bash scripts/"

You can also use an interactive bash shell for your.bashrcis selected and your shell will automatically adapt to your environment:

"postCreateCommand":"bash -i scripts/"

Tools like NVM will not work without use-EUTo put the shell in interactive mode:

"postCreateCommand":"bash -i -c 'nvm install --lts'"

The command must end or the container will not start. For example, when you add an app, start topostCreateCommand, the command was not completed.

There's one toopostStartCommandwhich runs every time the container is started. Parameters behave the same waypostCreateCommand, but the commands are run at startup instead of build.

Instead of linking directly to an imagedevcontainer.jsonor software installation by thepostCreateCommandorpostStartCommand, an even more efficient approach is to use a Dockerfile.


A Dockerfile will also live in the.devcontainerfolder. You can replace thoseBildproperty onedevcontainer.jsoncomdockerfile:

{ "To build": {"dockerfile":"Dockerfile"}, "Adjustments": { "vscode": { "extensions": ["dbaeumer.vscode-eslint"]}}, "forwardPorts": [3000]}

If you make changes, e.g. For example, when installing new software, the changes made to the Dockerfile persist even after the development container is rebuilt.

Use in your DockerfileVONto denote the picture, and theKORREInstructions for installing software. You can use&&to chain multiple commands together. update && export DEBIAN_FRONTEND=noninteractive \&& apt-get -y install git

Note orDEBIAN_FRONTENDexport avoids warnings when you switch to working with your container.

Automate the creation of development containers

Instead of creating one.devcontainermanually by selectingDevelopment Container: Add development container configuration files...command from the command palette (F1) adds the necessary files to your project as a starting point, which you can further customize to suit your needs.

(Video) Remote Development with Visual Studio Code

The command allows you to select a predefined container configuration from a list based on the contents of your folder:

Create a development container using Visual Studio Code Remote Development (3)

The predefined container settings you can choose from are taken from ourOwn and community index, which is part ofSpecification of the development container. We host a number of templates as part of the specificationdevcontainers/templates-Repository. You can browse theOriginFolders of this repository to view the content of each model.

At the end of useDevelopment Container: Add development container configuration files..., see the list of available resources, which are tools and languages ​​that you can easily place in your development container.Development Container: Configure container resourcesallows you to update an existing configuration.

Create a development container using Visual Studio Code Remote Development (4)

You can also reuse an existing Dockerfile:

Create a development container using Visual Studio Code Remote Development (5)

Now that you have onedevcontainer.jsonand Dockerfile, we look at the general process for editing container configuration files.

Full configuration edit loop

Editing the container configuration is easy. Because rebuilding a container "resets" the container to its original content (except for its local source code), VS Code is not automatically rebuilt when you edit a container configuration file (devcontainer.json,Dockerfile, zdocker-compose.yml). Instead, there are several commands that can be used to make editing your configuration easier.

Here is the typical editing loop with these commands:

Create a development container using Visual Studio Code Remote Development (6)

  1. Start withDevelopment Container: Add development container configuration the command palette (F1).
  2. Edit the content of.devcontainerinsert as needed.
  3. try it withDev Container: Don't rebuild a container.
  4. If you see an error, selectOpen folder locallyin the dialog box that appears.
  5. After the window reloads, a copy of theconstruction logis displayed in the console to help you investigate the problem. Edit the content of.devcontainerinsert as needed. (You can also use theDevelopment Container: Show container logcommand to show the log again when you close it.)
  6. reapDevelopment Container: Rebuild and reopen in the containerand continue to step 4 if necessary.

If you already have a successful build, you can still edit the contents of the file.devcontainerFolder as needed when connected to the container, and then selectDevelopment container: Rebuild containerin the command palette (F1) for the changes to take effect.

You can also iterate your container withDev-Container: clone repository on container volumeCommand.

  1. Start withDev-Container: clone repository on container volumein the command palette (F1). If the repository you entered doesn't have adevcontainer.jsonThis will prompt you to choose a starting point.
  2. Edit the content of.devcontainerinsert as needed.
  3. try it withDEv-Container: Rebuild container.
  4. If you see an error, selectOpen into recovery containerin the dialog box that appears.
  5. Edit the content of.devcontainerFolders as needed in this "recovery container".
  6. UseDev Container: Don't rebuild a containerand continue to step 4 if you continue to have problems.

Using Docker Compose

In some cases, a single container environment is not enough. Suppose you want to add another complex component to your setup, e.g. B. a database. You can try adding it directly to Dockerfile or via an additional container. Luckily Dev supports ContainersDocker compositionmanaged configurations with multiple containers.

You can also:

  1. Working with a service defined in an existing, unmodified servicedocker-compose.yml.
  2. create a new onedocker-compose.yml(or make a copy of an existing one) that you use to develop a service.
  3. Extend your existing Docker Compose configurationto develop the service.
  4. To do this, use separate VS Code windowsWork with multiple services defined by Docker Composeat once.

Monitoring:Some extensions may not work when using Alpine Linux containersglibcnative code dependencies within the extension.

VS Code can be configured this wayautomatically start all necessary containersfor a specific service in a Docker Compose file. If you have already started the configured containers from the command line, VS Code will do soappend to the running serviceYou indicated instead. This gives your multi-container workflow the same quick setup benefits described above for the Docker Image and Dockerfile workflows, while still allowing you to use the command line if you prefer.

To get started quicklyopen to pasteYou want to work in VS Code and theDevelopment Container: Add development container configuration files...command in the command palette (F1).

You will be prompted to select a predefined container configuration in ourOwn and community indexin a filterable list sorted by the contents of your folder. In the VS Code UI, you can choose one of the following templates as a starting point for Docker Compose:

  • Docker Compose is present- Contains a set of files that you can put into an existing project reusing onedocker-compose.ymlFile in the root of your project.
  • Node.js and MongoDB- A Node.js container that connects to a MongoDB database in another container.
  • Python und PostgreSQL- A Python container that connects to PostgreSQL in another container.
  • Docker-de-Docker Compose- Includes the Docker CLI and demonstrates how you can use it to access your local Docker installation from within a per-volume development container by mounting the Docker Unix socket.

Once you've made your selection, VS Code will add it.devcontainer/devcontainer.json(or.devcontainer.json) for the folder.

(Video) Visual Studio Code Development Containers: A Guide for Students

You can also create your configuration manually. To reuse an unmodified Docker Compose file, you can use thedockerComposeFileeServiceproperties inside.devcontainer/devcontainer.json.

For example:

{ "Name":"[Optional] Your project name here", "dockerComposeArquivo":"../docker-compose.yml", "Service":"the-name-of-the-service-you-want-to-work-with-vscode", "Pasta Workspace":"/default/workspace/path/in/container/to/open", "shutdown action":"stopCompor"}

see thedevcontainer.json referencefor information about other available properties, such asWorkspacePastaeShutdownAktion.

After adding a.devcontainer/devcontainer.jsonfile in your folder, run theDev Container: Don't rebuild a containercommand (orDevelopment container: Open folder in container...if you are not already in a container) from the command palette (F1).

If the containers aren't already running, VS calls Codedocker-compose -f ../docker-compose.yml hochin this example. theServiceThe property specifies which service in your Docker Compose file you want VS Code to connect to, not which service to start with. If you started them manually, VS Code will attach to the service you specified.

You can also create a development copy of your Docker Compose file. For example if you had.devcontainer/docker-compose.devcontainer.yml, you would simply change the following line todevcontainer.json:


However, a better approach is usually to avoid making a copy of the Docker Compose file.expand with another. we will coverExpand a Docker Compose filein the next section.

To prevent the container from shutting down when the default container command fails or exits, you can modify your Docker Compose file for the specified servicedevcontainer.jsonas follows:

# Overrides the default command so things don't exit after the process exits.command:/bin/sh -c "while sleeping 1000; do :; done"

If you haven't already, you can"bind" mount your local source codeinside the container with theList of volumes in your Docker Compose file.

For example:

volumes: # Mount the project folder on '/workspace'. The target path within the container # must match your application's expectations. In this case, the compose file # in a subfolder, so mount '..'. You would then reference that path as # "workspaceFolder" in ".devcontainer/devcontainer.json" so VS Code starts here.-..:/workspace:cached

However, on Linux it may be necessary to configure andSpecify a non-root userIf you use a mandatory mount or a file you create, you are root. SeeAdding a non-root user to your development containerfor details. To have VS Code run as a different user, add thisdevcontainer.json:


If you want all processes to run under a different user, add this to the appropriate service in your Docker Composefile:

from the user:your-username-here

If you are not creating a custom Dockerfile for development, you may want additional developer tools such ascurlingin the service container. Although less efficient than adding these tools to the container image, you can also use thepostCreateCommandproperty for this purpose.

Verinstall additional softwarefor more information about installing the software anddevcontainer.json referencefor more information aboutpostCreateCommandProperty.

If your app was built with C++, Go, or Rust, or any other language that uses a ptrace-based debugger, you must also add the following settings to your Docker Compose file:

# Required for ptrace-based debuggers like C++, Go, and Rustcap_add:-SYS_PTRACEsecurity opt:-seccomp: unlimited

After creating your container for the first time, you need to run theDevelopment container: Rebuild containerCommand for updates toodevcontainer.json, your Docker Compose files or related Dockerfiles take effect.

Using localhost in Docker Compose

You can add more services to yourdocker-compose.ymlfile as described inDocker Documentation. However, if you want everything running on this service to be available in the container on localhost or you want to route the service locally, add this line to the service's configuration:

# Run the service on the same network as the database container, enable "forwardPorts" in the devcontainer.json mode:Service: DB

You can see an exampleNetwork mode: Service: dbnoNode.js and MongoDB sample development containers.

Extend your Docker Compose file for development

Pointing to an existing/non-development deploymentdocker-compose.ymlit has some potential downsides.

For example:

(Video) DockerCon 2021: Container-Based Development with Visual Studio Code

  • Docker Compose shuts down a container when its entry point shuts down. This is problematic for situations where you need to debug and repeatedly restart your application.
  • You might also not map the local file system to the container or not free ports for other resources like databases that you want to access.
  • You may want to copy the content of your location.sshfolder in the container or set the ptrace options described above inUsing Docker Compose.

You can solve these and similar problems by extending your entire Docker Compose configuration withseveraldocker-compose.ymlfilesthat replace or supplement your client.

For example, consider this add-on.devcontainer/docker-compose.extend.ymlArchive:

execution:'3'Services: Your-service-name-here: volumes: # Mount the project folder on '/workspace'. While this file resides in .devcontainer, # Mounts are relative to the first file in the list one level up.-.:/workspace:cached # [Optional] Required for ptrace-based debuggers such as C++, Go, and Rust cap_add:-SYS_PTRACE security opt:-seccomp: unlimited # Overrides the default command so things don't exit after the process exits. command:/bin/sh -c "while sleeping 1000; do :; done"

The same file can provide additional settings such as port mappings if needed. To use it, refer to your originaldocker-compose.ymlfile plus.devcontainer/docker-compose.extend.ymlin a specific order:

{ "Name":"[Optional] Your project name here", // File order is important as later files overwrite earlier ones "dockerComposeArquivo": ["../docker-compose.yml","docker-compose.extend.yml"], "Service":"your-service-name-here", "Pasta Workspace":"/Workplace", "shutdown action":"stopCompor"}

VS Code will thenautomatically use both fileswhen starting any container. You can also start them from the command line like this:

docker-compose -f docker-compose.yml -f .devcontainer/docker-compose.extend.yml hoch

DuringpostCreateCommandproperty you can install additional tools in your container, in some cases you might want to have a specific Dockerfile for development. You can also use the same approach to reference aDockerfilespecifically for development without modifying your existing Docker Compose file. For example, you can update.devcontainer/devcontainer.extend.ymlas follows:

execution:'3'Services: Your-service-name-here: # Note that the Dockerfile path and context are relative to *main* # docker-compose.yml file (first in devcontainer.json "dockerComposeFile" # Diversity). The following example assumes that your main file is in the root of your project. To build: context:. dockerfile:.devcontainer/Dockerfile volumes:-.:/workspace:cached command:/bin/sh -c "while sleeping 1000; do :; done"

congratulations! You have now set up a development container in Visual Studio Code. Read on to learn how to share container configurations between teammates and multiple projects.

Add configuration files to a repository

You can easily share a custom development container template for your project by adding itdevcontainer.jsonSource Control Files. By including these files in your repository, anyone who opens a local copy of your repository in VS Code will be automatically prompted to reopen the folder in a container, provided they have the Dev Containers extension installed.

Create a development container using Visual Studio Code Remote Development (7)

In addition to the benefits of your team using a consistent environment and toolchain, it also makes it easier for new contributors or team members to get started quickly. New contributors require less guidance and have fewer issues related to setting up the environment.

Add an open seal in the development container

You can also add a badge or link to your repository so users can easily open your project in Dev Containers. It installs the Dev Containers extension and clones the repository into a container if neededVolumeand start the dev container.

As an example, a badge to open would look like this:

[![Open in dev containers](](

You can also add oneopen in the development containerdirect connection:

If you already have VS Code and Docker installed, click the badge above or [on here]( begin. When you click these links, VS Code will automatically install the Dev Containers extension if needed, clone the source code to a container volume, and launch a development container for use.

Alternative: Repository-Konfigurationsordner

In some cases, you might want to create a configuration for a repository that you don't control, or you might want no configuration included in the repository itself. To deal with this situation, you can configure a location on your local file system to store configuration files that are automatically selected based on the repository.

First update theDev > Container: Repository-Konfigurationspfade user configurationwith the local folder you want to use to store your repository container configuration files.

In the config editor you can search for "dev container repo" to find the config:

Create a development container using Visual Studio Code Remote Development (8)

Next place yours.devcontainer/devcontainer.json(and associated files) in a subfolder reflecting the remote location of the repository. For example, if you want to create a configuration, you would create the following folder structure:

📁 📁 devcontainers 📁 modelos 📁 .devcontainer

Once the configuration is in place, it will be automatically selected when you use any of the Dev Containers commands. Once inside the container, you can also chooseDevelopment Container: Open the container configuration filefrom the command palette (F1) to open the related onedevcontainer.jsonfile and make further edits.

The path used to find the configuration is derived from the output ofgit remote -v. If the configuration is not found when you try to reopen the folder in a container, check the logDevelopment Container: Show container login the command palette (F1) for the list of checked paths.

Next Steps

  • Attach to a running container- Attach to an already running Docker container.
  • Advanced Containers- Find solutions for advanced container scenarios.
  • devcontainer.json reference- Check thedevcontainer.jsonthe plan.


(Video) Using Visual Studio Code for Remote Development


What is VS Code remote containers? ›

The Visual Studio Code Remote - Containers extension lets you use a Docker container as a full-featured development environment, which helps ensure a consistent environment across developer machines and makes it easy for new team members and contributors to get up and running.

How do I attach a remote running container in VS Code? ›

To attach to a Docker container, either select Dev Containers: Attach to Running Container... from the Command Palette (F1) or use the Remote Explorer in the Activity Bar and from the Containers view, select the Attach to Container inline action on the container you want to connect to.

How do you turn an application into a container? ›

How To Dockerize An Application
  1. 1.Install Docker.
  2. Choose a base Image.
  3. Install the necessary packages.
  4. Add your custom files.
  5. Define which user will (or can) run your container.
  6. Define the exposed ports.
  7. Define the entrypoint.
  8. Define a Configuration method.
Dec 28, 2021

How do I remote into a container? ›

How to Connect to Remote Docker using docker context CLI
  1. Pre-requisite: ...
  2. Listing the current context values. ...
  3. Run a new Docker container on Node 2. ...
  4. Listing the container. ...
  5. Setting the Environment Variable. ...
  6. Verify you configured variable. ...
  7. Configure SSH to trust the host. ...
  8. Connecting to Nodes with DOCKER_HOST.
May 4, 2022

What is a development container? ›

A Development Container (or Dev Container for short) allows you to use a container as a full-featured development environment. It can be used to run an application, to separate tools, libraries, or runtimes needed for working with a codebase, and to aid in continuous integration and testing.

Is a container the same as a VM? ›

The key differentiator between containers and virtual machines is that virtual machines virtualize an entire machine down to the hardware layers and containers only virtualize software layers above the operating system level.

Are containers the same as virtual machines? ›

Key differences: containers and virtual machines

Containers virtualize the operating system so the application can run independently on any platform. Virtual machines go beyond that to virtualize physical machines, so you can use your hardware resources efficiently.

How do I add a container in Visual Studio? ›

To add container orchestrator support using Docker Compose, right-click on the project node in Solution Explorer, and choose Add > Container Orchestrator Support. Then choose Docker Compose to manage the containers.

How do I run a Visual Studio container? ›

To view your containers in Visual Studio at any time, use Ctrl+Q to activate the Visual Studio Search box, and type Containers and choose the first item. You can also open the Containers window from the main menu. Use the menu path View > Other Windows > Containers.

What is the difference between dev containers and Codespaces? ›

Dev Containers let you run any project in a Docker container. You can do this locally, as we've seen, or you can do it remotely in the cloud using Github's Codespaces. Codespaces is a cloud computing service that lets you run a Dev Container on remote hardware and access it from almost anywhere.

Can you run a container on a virtual machine? ›

Again, the answer is absolutely yes. Running your application in a set of Docker containers doesn't preclude it from talking to the services running in a VM. For instance, your application may need to interact with a database that resides in a virtual machine.

How to run Docker in Visual Studio Code? ›

Create a container
  1. Set Docker to Linux container mode. ...
  2. In VS Code, select Terminal > New Terminal.
  3. In the terminal window or a Bash window, run this command. ...
  4. In VS Code, select the Docker icon on the left to view the Docker extension. ...
  5. Right-click on docker/getting-started to open a context menu. ...
  6. Refresh your browser.
Jan 31, 2023

Should you use Docker for local development? ›

Docker helps to ensure that all the developers have access to all the necessary bits and pieces of the software they work on. So if someone adds software dependencies, everyone has them when needed. If it is just one developer, there is no such need.

Can you Containerize an application? ›

Application containerization is an OS-level virtualization method used to deploy and run distributed applications without launching an entire virtual machine (VM) for each app. Multiple isolated applications or services run on a single host and access the same OS kernel.

How many applications can run in a container? ›

Container-based application design encourages certain principles. One of these principles is that there should just be one process running in a container. That is to say, a Docker container should have just one program running inside it.

What is an example of a container application? ›

Kubernetes and Amazon Elastic Container Service (ECS) are examples of popular container orchestration tools.

How do you run a container and keep it running? ›

The simplest way to keep the container running is to pass a command that never ends. We can use never-ending commands in any of the following ways: ENTRYPOINT or CMD directive in the Dockerfile. Overriding ENTRYPOINT or CMD in the docker run command.

How do virtual containers work? ›

Instead of virtualizing the underlying hardware, containers virtualize the operating system (typically Linux or Windows) so each individual container contains only the application and its libraries and dependencies.

Why would a developer use a container? ›

Containers allow applications to be more rapidly deployed, patched, or scaled. Containers support agile and DevOps efforts to accelerate development, test, and production cycles.

Should I use containers for development? ›

Containers are lightweight and fast. They provide a simple way to replicate an application's environment or stack locally. More importantly, they enable a workflow for your code that allows you to develop and test locally, push to upstream, and ensure what you build locally will likely work in production, too.

What are the two types of containers in computer? ›

There are two types of containers that are oriented to solve different problems.
  • System Containers — one of the oldest container types, which is quite similar to virtual machines. ...
  • Application Containers — a relatively new container type, which commonly runs a single process inside.
Aug 6, 2020

Which is faster VM or container? ›

Docker containers are generally faster and less resource-intensive than virtual machines, but full VMware virtualization still has its unique core benefits—namely, security and isolation.

What are the disadvantages of moving to containers from virtual machines? ›

Container: CONS

Containers still do not offer the same security and stability that VMs can. Since they share the host's kernel, they cannot be as isolated as a virtual machine. Consequently, containers are process-level isolated, and one container can affect others by compromising the stability of the kernel.

What are the 3 types of virtualization? ›

There are three main types of server virtualization: full-virtualization, para-virtualization, and OS-level virtualization.

Which is better VM or container? ›

Containers are more lightweight than VMs, as their images are measured in megabytes rather than gigabytes. Containers require fewer IT resources to deploy, run, and manage. Containers spin up in milliseconds. Since their order of magnitude is smaller.

Which is more secure VM or container? ›

Traditional applications are not properly isolated from each other within a VM, giving scope for a malicious program to penetrate and control others. Whereas, containers run isolated from each other, with each of them possessing its own level of security and remaining unharmed.

Are containers cheaper than virtual machines? ›

Cost: One of the biggest advantages of Containers is that they are much cheaper to use than Virtual Machines. A single Container can use much less CPU and memory than a Virtual Machine, which makes them a more cost-effective option for applications that need to run on a limited number of resources.

How do I create a JAR file in Visual Studio? ›

  1. Run command palette Ctrl+Shift+P.
  2. Type Build Jar.
Apr 15, 2020

How to use Docker as a development environment? ›

Learning objectives
  1. Install the Visual Studio Code Dev Containers extension.
  2. Load and connect to a project in a Docker container.
  3. Access ports in the container from your local machine.
  4. Customize settings while working with your container.
  5. Add software to the container environment.

How do I create a Docker file in Visual Studio? ›

Open the project in Visual Studio, and choose one of the following options:
  1. Select Docker Support from the Project menu.
  2. Right-click the project in Solution Explorer and select Add > Docker Support.
Feb 15, 2023

What is remote container? ›

The Visual Studio Code Remote - Containers extension lets you use a Docker container as a full-featured development environment, which helps ensure a consistent environment across developer machines and makes it easy for new team members and contributors to get up and running.

Can Visual Studio run in a container? ›

Visual Studio provides a consistent way to develop Docker containers and validate your application locally. You can run and debug your apps in Linux or Windows containers running on your local Windows desktop with Docker installed, and you don't have to restart the container each time you make a code change.

Can you run containers on Windows? ›

You can also run containers natively on Windows Server. Develop, test, publish, and deploy Windows-based containers using the powerful container support in Visual Studio and Visual Studio Code, which include support for Docker, Docker Compose, Kubernetes, Helm, and other useful technologies.

What is the difference between Docker and container? ›

Multiple containers can run simultaneously, each based on the same or different images. Docker is similar to virtual machines in the way it creates multiple instances of an operating system. However, Docker lets you create containers that run on the same operating system.

Is Kubernetes the same as containers? ›

While the promise of containers is to code once and run anywhere, Kubernetes provides the potential to orchestrate and manage all your container resources from a single control plane. It helps with networking, load-balancing, security, and scaling across all Kubernetes nodes which runs your containers.

What is the difference between containers and microservices? ›

The main difference between microservices and containers is that microservices are an architectural paradigm, while containers are a means to implement that paradigm. Containers host the individual microservices that form a microservices application.

How do I create my own Docker container? ›

This is the recommended workflow for creating your own Docker image for your application:
  1. Write a Dockerfile for your application.
  2. Build the image with docker build command.
  3. Host your Docker image on a registry.
  4. Pull and run the image on the target machine.

What is a code container? ›

Code containers are properties of components, application shells, entities and fields that hold the ProcScript and JavaScript code used to define application behavior for the specific object.

How to create a Docker file in VS Code? ›

Generating Docker files

You can add Docker files to your workspace by opening the Command Palette (Ctrl+Shift+P) and using Docker: Add Docker Files to Workspace command. The command will generate Dockerfile and .dockerignore files and add them to your workspace.

Can I run VS Code in a Docker container? ›

After you install the Docker extension for VS Code, you can work with containers in VS Code. In addition to context menus in the Docker pane, you can select Terminal > New Terminal to open a command-line window. You can also run commands in a Bash window.

How do I create a first docker container? ›

Now let's create your first application
  1. Install Docker on your machine. For Ubuntu: ...
  2. Create your project. In order to create your first Docker application, I invite you to create a folder on your computer. ...
  3. Edit the Python file. ...
  4. Edit the Docker file. ...
  5. Create the Docker image. ...
  6. Run the Docker image.
Apr 2, 2019

Can I create a docker container without docker image? ›

Buildah makes it possible to create containers without using Docker, which means that users can implement Docker- and OCI-compliant container images with Buildah without the need for executing a container runtime daemon. Developers normally need to use a number of tools and daemons to create a Linux container image.

Is a docker image a container? ›

A Docker image is a file used to execute code in a Docker container. Docker images act as a set of instructions to build a Docker container, like a template. Docker images also act as the starting point when using Docker. An image is comparable to a snapshot in virtual machine (VM) environments.

What are 4 types of containers? ›

The 4 Most Common Types of Shipping Containers
  • Dry Storage Container. Dry storage containers are among the most common shipping containers on the market. ...
  • Flat Rack Container. Flat racks are another common type of shipping container. ...
  • Refrigerated ISO Containers. ...
  • Special Purpose Containers.
Jun 13, 2022

What are the two types of containers in computer programming? ›

Types. Containers may be classified as either single-value containers or associative containers. Single-value containers store each object independently. Objects may be accessed directly, by a language loop construct (e.g. for loop) or with an iterator.

What are some examples of container programming? ›

Container runtimes
  • Docker. The first and still most popular container technology, Docker's open-source containerization engine works with most of the products that follow, as well as many open-source tools.
  • Docker Enterprise. ...
  • CRI-O. ...
  • rktlet. ...
  • containerd. ...
  • Microsoft Containers. ...
  • Kubernetes. ...
  • Istio and Envoy.

Can we create container from Dockerfile? ›

In order to build the container image, you'll need to use a Dockerfile . A Dockerfile is simply a text-based file with no file extension. A Dockerfile contains a script of instructions that Docker uses to create a container image.

Can I run Visual Studio in a Docker container? ›

Visual Studio provides a consistent way to develop Docker containers and validate your application locally. You can run and debug your apps in Linux or Windows containers running on your local Windows desktop with Docker installed, and you don't have to restart the container each time you make a code change.


1. VSCode - Develop Inside a Docker Container
(Maksim Ivanov)
2. Visual Studio Code: Remote dev with Containers & Codespaces
(Microsoft Developer)
3. Container-Based Development with Visual Studio Code | STUDIO12
(Microsoft Developer)
4. Easy VS Code Docker Remote Containers | Dockerize Development Environment Easily with VS Code (2020)
5. Adding a dev container to a project [3 of 8] | Beginner's Series to: Dev Containers
(Visual Studio Code)
6. How To Use Visual Studio Dev Containers To Develop Node.js Apps Remotely on AWS


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