Docker | Secure Data Transfer | Resistance Leader's Guide

Introduction

In the midst of a futuristic war, the resistence leader, codenamed "RebelX," is in urgent need of transferring crucial encrypted data between the host system and a secure container. Ensuring the successful transfer of this data is pivotal to the outcome of the resistance's battle against the oppressive regime.

Skills Graph

%%%%{init: {'theme':'neutral'}}%%%% flowchart RL docker(("Docker")) -.-> docker/VolumeOperationsGroup(["Volume Operations"]) docker/VolumeOperationsGroup -.-> docker/cp("Copy Data Between Host and Container") subgraph Lab Skills docker/cp -.-> lab-268695{{"Data Transfer in Futuristic Warfare"}} end

Host to Container

In this step, RebelX needs to copy files from the host system to the secure container using the docker cp command.

Pull the ubuntu image:
```
docker pull ubuntu
```

Start the secure container:

docker run -itd --name secure-container ubuntu

Copy the files from the host system to the secure container:
```
docker cp ~/project/data.txt secure-container:/var
```

Container to Host

In this step, RebelX needs to retrieve processed data from the secure container back to the host system.

Process the data within the secure container:
```
docker exec secure-container /bin/sh -c 'echo "secure data" > /var/processed_data.txt'
```
Assuming the data processing commands are executed within the secure container, the processed data will be available within /var/processed_data.txt.

Copy the processed data from the secure container to the host system:

docker cp secure-container:/var/processed_data.txt ~/project/processed_data.txt

Summary

In this lab, the focus was on facilitating the transfer of critical data between the host system and a secure Docker container using the docker cp command. The scenario was designed to provide a realistic context for learning this essential Docker skill. Through the step-by-step guidance and interactive checking process, participants can effectively understand and practice the data transfer process, propelling their Docker proficiency to new heights.