Docker Windows fails to pull mcr.microsoft.com/devcontainers/base:0-alpine-3.20 due to connection reset

Docker on Windows: Failure to Pull mcr.microsoft.com/devcontainers/base:0-alpine-3.20 due to Connection Reset

Docker has become an essential tool for many developers, enabling them to build, distribute, and run applications in containers. Docker on Windows provides a convenient way to develop applications using a familiar Windows environment. However, there are times when issues arise, like failing to pull an image due to a connection reset error. This article will explore this issue in detail, covering key concepts and providing a solution.

Prerequisites

To follow along with this article, you should have Docker Desktop installed on your Windows machine, with WSL2 enabled. If you haven't already done so, you can download Docker Desktop from the official Docker website.

The Problem: Failing to Pull the devcontainers/base Image

When trying to pull the mcr.microsoft.com/devcontainers/base:0-alpine-3.20 image using Docker Desktop for Windows with WSL2 enabled, you might encounter a connection reset error:

Understanding the Connection Reset Error

A connection reset error typically occurs when the remote server terminates the connection unexpectedly. In this case, the Docker engine receives a TCP RST packet from the remote server (mcr.microsoft.com) while attempting to connect. Possible reasons for this issue include:

• The server is experiencing a high load and can't handle new connections.
• A network issue is preventing a stable connection between your Windows machine and the remote server.
• Firewall or antivirus software on your machine is blocking access to the remote server.

Solving the Connection Reset Error

To resolve this issue, you can try the following:

1. Check your internet connection and ensure that you can access other websites without issues.
2. Disable any firewall or antivirus software temporarily and attempt to pull the image again.
3. Pull the image using the Docker CLI instead of the Docker Desktop GUI. This can help avoid any issues with the Docker Desktop application.
docker pull mcr.microsoft.com/devcontainers/base:0-alpine-3.20

Key Concepts

Docker Containers: Docker containers are lightweight, isolated runtime environments in which applications can run. Containers share the host system's OS kernel, yet remain separated from the host system and each other.

Docker Images: Docker images are the read-only templates used to create Docker containers. An image contains all the necessary files, libraries, and runtime settings for an application to run.

Docker Hub: Docker Hub is a cloud-based registry where you can store and distribute Docker images. It offers both public and private repositories for image management.

WSL2 (Windows Subsystem for Linux 2): WSL2 is a virtual machine that runs Linux distributions natively on Windows, allowing for faster and more efficient container operations than with WSL1 or Hyper-V.

• Docker on Windows can experience connection issues when pulling images, such as a connection reset error.
• The connection reset error is usually caused by issues with the server, network, or software on your machine.
• To solve the connection reset error, check your internet connection, disable firewall/antivirus software, and try pulling the image using the Docker CLI.

References

• Docker pull Command
• Docker CLI Reference
• Windows Subsystem for Linux (WSL)