Docker

Docker is a platform that enables developers to build, deploy, and run applications in containers. This guide will walk you through the steps to install Docker.io on a Linux system.

Prerequisites

• A Linux-based operating system (e.g., Ubuntu, Debian, CentOS)

• A user account with sudo privileges

Steps to Install Docker.io

1. Update the package index:

   Before installing Docker, update your package index to ensure you have the latest information about available packages.

   sudo apt-get update
   

2. Install required packages:

   Install the necessary packages to allow apt to use a repository over HTTPS.

   sudo apt-get install \
       apt-transport-https \
       ca-certificates \
       curl \
       software-properties-common
   

3. Add Docker’s official GPG key:

   Add Docker’s official GPG key to your system.

   curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
   

4. Set up the Docker repository:

   Add the Docker repository to apt sources.

   sudo add-apt-repository \
       "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
       $(lsb_release -cs) \
       stable"
   

5. Update the package index again:

   After adding the Docker repository, update the package index again.

   sudo apt-get update
   

6. Install Docker.io:

   Install Docker from the Docker repository.

   sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
   

7. Manage Docker as a non-root user:

   To avoid typing sudo whenever you run the docker command, add your user to the docker group.

   sudo groupadd -f docker && sudo usermod -aG docker $USER
   

   Log out and log back in so that your group membership is re-evaluated.

8. Start the Docker service:

   Start the Docker service if it is not already running.

   sudo system start docker
   

9. Verify the Docker installation:

   Verify that Docker is installed correctly by running the hello-world image.

   sudo docker run hello-world
   

   If Docker is installed correctly, you should see a message indicating that the installation was successful.

Enable NVIDIA GPU Support

To enable NVIDIA GPU support in Docker, follow these steps:

1. Install NVIDIA drivers:

   Ensure that you have the appropriate NVIDIA drivers installed on your system. You can download the drivers from the NVIDIA website or install them using your package manager.

   sudo add-apt-repository ppa:graphics-drivers/ppa
   sudo apt-get install nvidia-driver-560
   

2. Install NVIDIA Container Toolkit:

   Install the NVIDIA Container Toolkit to enable GPU support in Docker.

   sudo curl -s -L https://nvidia.github.io/nvidia-docker/gpgkey | sudo apt-key add -
   distribution=$(. /etc/os-release;echo $ID$VERSION_ID)
   sudo curl -s -L https://nvidia.github.io/nvidia-docker/$distribution/nvidia-docker.list | sudo tee /etc/apt/sources.list.d/nvidia-docker.list
   sudo apt-get update
   sudo apt-get install -y nvidia-docker2
   

3. Configure Docker to use the NVIDIA runtime:

   Configure Docker to use the NVIDIA runtime by default.

   sudo tee /etc/docker/daemon.json <<EOF
   {
       "default-runtime": "nvidia",
       "runtimes": {
           "nvidia": {
               "path": "nvidia-container-runtime",
               "runtimeArgs": []
           }
       }
   }
   EOF
   sudo systemctl restart docker
   

4. Verify NVIDIA Docker installation:

   Verify that the NVIDIA Docker installation is successful by running a test container.

   sudo docker run --rm --gpus all nvidia/cuda:11.0-base nvidia-smi
   

   If the installation is successful, you should see the output of nvidia-smi showing the details of your GPU.

With these steps, you have enabled NVIDIA GPU support in Docker.

Congratulations! You have successfully installed Docker.io on your Linux system.