docker v1.0.0A

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---
description: 'Please check if docker is already installed. If so, to start Docker
  in a container environment:'
metadata:
  agent: CodeActAgent
  type: knowledge
  version: 1.0.0
name: docker
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
```

## Verifying Docker Installation

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

```bash
sudo docker run hello-world
```