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Docker Guide

Prerequisites

  1. Install Docker: Ensure Docker is installed and running on your system.

    For Ubuntu:

    for pkg in docker.io docker-doc docker-compose docker-compose-v2 podman-docker containerd runc; do sudo apt-get remove $pkg; done
sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc
echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
$(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

    To verify the installation, run:

    sudo docker run hello-world

  2. A Docker Hub Account:

  3. Log in to Docker Hub:

    • Run the following command to log in to Docker Hub and enter your Docker Hub credentials:
    docker login

Steps to Build, Tag, and Push a Docker Image:

  1. Build the Docker Image

    • Navigate to the directory containing your Dockerfile:

      cd /path/to/your/project

      Example:

      cd redteam_core/miner/commits/text_detection

    • Build the Docker image:

      docker build -t <image_name>:<tag> .
      • Replace <image_name> with the desired name of your image (e.g., challenge_name).
      • Replace <tag> with a version or description for the image (e.g., v1.0, latest).

      Example:

      docker build -t challenge_name:0.0.1 .

  2. Tag the Docker Image

    • Tag your image for Docker Hub by adding your Docker Hub username:

      docker tag <image_name>:<tag> <dockerhub_username>/<repository_name>:<tag>
      • Replace <dockerhub_username> with your Docker Hub username.
      • Replace <repository_name> with the repository name you want to push to.

      Example:

      docker tag challenge_name:0.0.1 redteam/challenge_name:0.0.1

  3. Push the Docker Image to Docker Hub

    • Push the tagged image to Docker Hub:

      docker inspect --format='{{index .RepoDigests 0}}' <dockerhub_username>/<repository_name>:<tag>

      Example:

      docker inspect --format='{{index .RepoDigests 0}}' redteam/challenge_name:0.0.1

  4. Retrieve the SHA256 Digest

    • After pushing the image, retrieve the digest by running:

      docker push <dockerhub_username>/<repository_name>:<tag>

      Example:

      docker push redteam/challenge_name:0.0.1

  5. Verify the Image on Docker Hub

    • Log in to Docker Hub and navigate to your repository to ensure the image has been successfully uploaded.

Notes:

  • Ensure your <repository_name> already exists on Docker Hub or create it before pushing the image.
  • Use descriptive tags to manage different versions of your Docker images effectively.