6 Docker Setup

Fr4nz D13trich edited this page 2025-10-02 18:36:25 +02:00

Table of Contents

• Dependencies & Repo
• Install & Setup
• Test Docker
• Uninstall Docker

Dependencies & Repo

1. Install the required dependencies with the following apt command:

sudo apt install ca-certificates curl gnupg lsb-release

2. Create key directory --if-not-exists

sudo mkdir -p /etc/apt/keyrings

3. Download and add Docker's official GPG key:

curl -fsSL https://download.docker.com/linux/debian/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

4. Add Docker's APT repository with:

echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

5. Update the package list:

sudo apt update

Install & Setup

1. Install essential Docker packages with:

sudo apt install docker-ce docker-ce-cli containerd.io

2. Add the user to the Docker group with:

sudo usermod -aG docker $USER

3. Logout and back in or reboot host machine

Test Docker

To confirm Docker is running correctly, test the setup with a simple container. Run the "hello-world" container with the following docker run command:

docker run hello-world

Uninstall Docker

1. Use the apt purge command to uninstall the Docker-related packages:

sudo apt purge docker-ce docker-ce-cli containerd.io

2. To delete leftover data, run the following command:

sudo rm -rf /var/lib/docker

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