Installing Docker on the RevPi

Step 1: Removing Conflicting Packages #

▷ Before you can install Docker Engine, uninstall any conflicting packages.

for pkg in docker.io docker-doc docker-compose podman-docker containerd runc; do sudo apt-get remove $pkg; done

Step 2: Setting up Docker’s Repository #

▷ Add Docker’s Official GPG Key.

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/debian/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

Step 3: Adding Repository to Apt Sources #

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

Step 4: Updating System and Installing Required Packages #

▷ Start by updating the system and installing the packages required for Docker:

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

Step 5: Verifying Installation #

▷ Verify the installation by displaying the Docker version:

sudo docker --version

▷ To ensure Docker is working, run a simple test container:

sudo docker run hello-world

❯❯ If the container runs correctly, Docker is successfully installed on the RevPi.

Using Docker without sudo #

▷ If you want to run Docker commands without sudo, add your user to the Docker group:

sudo usermod -aG docker $USER