git:20260108.2035010 to git:20260701.599cc4d

5 added, 0 removed. Audit A to A.

---

name: docker

description: Run Docker commands within a container environment, including starting the Docker daemon and managing containers. Use when building, running, or managing Docker containers and images.

triggers:

- docker

- container

---

# Docker Usage Guide

## Starting Docker in Container Environments

Please check if docker is already installed. If so, to start Docker in a container environment:

```bash

# Start Docker daemon in the background

sudo dockerd > /tmp/docker.log 2>&1 &

# Wait for Docker to initialize

sleep 5

```

+ On Windows, start Docker Desktop or the Docker service instead of running `sudo dockerd`; then run Docker commands from PowerShell without `sudo`.

## Verifying Docker Installation

To verify Docker is working correctly, run the hello-world container:

```bash

sudo docker run hello-world

```

+ PowerShell equivalent after Docker Desktop is running: `docker run hello-world`.