https://github.com/pratikshinde55/docker-gui_container

Setting Up and Accessing a GUI Container on EC2 Using VNC
https://github.com/pratikshinde55/docker-gui_container

docker docker-container docker-gui tightvnc vnc-viewer

Last synced: 4 months ago
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Setting Up and Accessing a GUI Container on EC2 Using VNC

• Host: GitHub
• URL: https://github.com/pratikshinde55/docker-gui_container
• Owner: Pratikshinde55
• Created: 2024-07-28T08:05:45.000Z (almost 2 years ago)
• Default Branch: main
• Last Pushed: 2024-09-25T12:57:16.000Z (over 1 year ago)
• Last Synced: 2025-04-05T19:18:48.227Z (about 1 year ago)
• Topics: docker, docker-container, docker-gui, tightvnc, vnc-viewer
• Homepage:
• Size: 90.8 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# Docker-GUI_Container

![image](https://github.com/user-attachments/assets/9a7633b6-6dc7-4a67-b566-2e3f2b47f46e)

- Description:

In this task, we will set up a GUI container on an EC2 Ubuntu instance using Docker and access it remotely via VNC.

The process involves pulling and running a Docker image that provides an Ubuntu environment 

with an XFCE desktop environment and a VNC server. We will then access this environment using TightVNC Viewer and a web browser.

 

- Prerequisites:

 1. AWS Account: (I use EC2 instance as OS for docker and AMI-ubuntu)

    

 2. Security Group Settings:

     (Modify the security group associated with your EC2 instance to allow inbound traffic on the following ports:

     Port 22 (SSH), Port 5901 (VNC), Port 6901 (noVNC),Port 80 (HTTP) ).

    

   ![Screenshot 2024-07-28 135712](https://github.com/user-attachments/assets/c0da6b3b-4739-40a0-9327-c3e490670d37)

 3. Local Machine Setup:

  (TightVNC Viewer installed on your local machine for accessing the VNC server).

 4. Putty (SSH access to the EC2 instance ).

### Step-1: [Install Docker and Start Docker services]

 

    sudo apt-get update

    

Install Docker commad for ubuntu:   

    sudo apt-get install -y docker.io

    

Start Docker service command:

    sudo systemctl start docker 

### Step-2: [Launch Container using image which support GUI]

- Note:

  

 The "consol/ubuntu-xfce-vnc" Docker image is designed to provide a lightweight, easy-to-use VNC (Virtual Network Computing) 

 server environment running on an Ubuntu base with the Xfce desktop environment. This image allows you to run GUI applications 

 within a container and access them remotely via a VNC client.

    sudo docker pull consol/ubuntu-xfce-vnc

Lanuch container in detached Mode and expose:

    sudo docker run -d --name=pratik1 -p 5901:5901 -p 6901:6901 -e VNC_PASSWORD=pratik consol/ubuntu-xfce-vnc

here,

 

 **-d: Run the container in detached mode.**

    

 **-p 5901:5901: Map port 5901 of the container to port 5901 of the host (VNC access).**

    

 **-p 6901:6901: Map port 6901 of the container to port 6901 of the host (web-based VNC access).**

**-e environmental variables** 

    

Now check container logs and we get image build details:

    sudo docker logs pratik1

- Note:

    

we can try to connect container from outside (browser) world.

here show error while connecting to container by HTTP (http://52.90.226.27:6901/?password=pratik) we write password then also unable to connect -

![image](https://github.com/user-attachments/assets/070c9471-cc3c-4b4a-8d72-2ecea5747da7)

#### TightVNC Viewer:

[TightVNC-download-link](https://www.tightvnc.com/download.php)

  

*TightVNC is a remote desktop software that allows you to see and control a remote computer's desktop. It uses the RFB (Remote FrameBuffer) protocol

and is an improved version of the standard VNC (Virtual Network Computing) software.*

Now using TightVNC viewer for GUI container:

Fill public Ip of EC2 and port no. -->> (52.90.226.27:5901)

![image](https://github.com/user-attachments/assets/99d21477-3f4d-4623-a5cd-3ad9783d029a)

While fill password also unble to connect GUI container :

![image](https://github.com/user-attachments/assets/95bf9c5d-c26a-4136-87bd-49982e444545)

- Note : (Authentication Failure)

I can manually reset the VNC password by attaching to the running container and using the "vncpasswd" command.

    sudo docker exec -it pratik1 bash

Set new VNC password inside the Container cmd:

    vncpasswd

After resetting the password, restart the VNC server within the container:

    vncserver -kill :1

    vncserver :1

![image](https://github.com/user-attachments/assets/7373b6c0-08be-4bae-9c53-6a6002dd785c)

### Step-3: [On Browser]

Now again check on Browser with newly saved password (newpassowrd - pratik55)

public IP of EC2 : port no (http://52.90.226.27:6901/?password=pratik55)

![image](https://github.com/user-attachments/assets/ff95071c-e1d4-4279-a63e-a0788b8526f8)

- check GUI Container from TightVNC viewer:

fill new password 

![Screenshot 2024-07-28 141953](https://github.com/user-attachments/assets/b95063a9-2775-44f1-839e-8d143c3545e3)

    

## Summary 

- Docker Setup on EC2 Instance:

  Install Docker on your EC2 instance.

  

  Pull a Docker image capable of running a GUI application with VNC support.

  

- Running the Docker Container:

  Start the Docker container with ports 5901 and 6901 exposed for VNC and noVNC access.

 

  Set a VNC password.

 

- Connecting via TightVNC Viewer:

  Use TightVNC Viewer on your local machine to connect to the VNC server running in the Docker container on the EC2 instance.