for pkg in docker.io docker-doc docker-compose docker-compose-v2 podman-docker containerd runc; do sudo apt-get remove -y $pkg; done

# Add Docker's official GPG key:

sudo apt-get update -y

sudo apt-get install -y 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

# Add the repository to Apt sources:

echo \

"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \

$(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") stable" | \

sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

sudo apt-get update -y

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

# Test if Docker is running correctly without downloading additional images

sudo docker info || { echo "Docker is not running properly"; exit 1; }

echo "Docker is installed and running properly"

# Create the docker group if it doesn't exist

sudo groupadd -f docker

# Add current user to the docker group

sudo usermod -aG docker $USER

# Apply new group settings (note: this will only take effect after logout/login)

echo "User added to docker group. Log out and log back in (or run 'newgrp docker') for changes to take effect."

echo "After logging out and back in, you should be able to run Docker without sudo:"

echo "docker run hello-world"