#!/bin/bash

echo
echo "  => Docker"
echo

# Check for Docker
pkgs="docker-ce
      docker-ce-cli
      containerd.io
      docker-buildx-plugin
      docker-compose-plugin"

for pkg in $pkgs
do
    dpkg-query -W -f='${Status}' $pkg 2>&1 | grep -q " installed"
    if [ $? -ne 0 ]; then
        installed=false
    fi
done
if [ -z $installed ]; then
    echo "Docker found."
    exit
fi

# Install needed packages
pkgs="ca-certificates
      curl"
for pkg in $pkgs
do
    dpkg-query -W -f='${Status}' $pkg 2>&1 | grep -q " installed"
    if [ $? -ne 0 ]; then
        apt-get install $pkg -y
    fi
done
# Add Docker's official GPG key:
install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc
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/debian \
    $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
    tee /etc/apt/sources.list.d/docker.list > /dev/null
apt-get update
# Install packages
apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin -y