[bash] Install Docker

install-docker.sh

#!/bin/bash

ARGS=($*)
BOLD=$(tput bold)
RED=$(tput setaf 1)
GREEN=$(tput setaf 2)
BLUE=$(tput setaf 4)
RESET=$(tput sgr0)

function __run_cmd() {
    local cmd
	local output
	local exit_code
	cmd="$@"
	output=$(eval "$cmd" 2>&1; exit ${PIPESTATUS[0]})
	exit_code=$?
	if [[ $exit_code -ne 0 ]]; then
		echo -e "${RED}${output}\n${BOLD}Command: $cmd failed with exit status code: ${exit_code}\nPlease check the error message above and try again${RESET}" >&2
		exit $exit_code
	fi
	return 0
}

function __get_os() {
    local version
    local id_like
    version=$(. /etc/os-release && echo "$VERSION_CODENAME")
    id_like=$(. /etc/os-release && echo "$ID_LIKE")
    if echo "$id_like" | grep -qi "ubuntu"; then
        if ! echo "$version" | grep -Eqi "jammy|bionic"; then
            version=$(. /etc/os-release && echo "$UBUNTU_CODENAME")
			if ! echo "$version" | grep -Eqi "jammy|bionic"; then
				echo "Incompatible operating system found" >&2
				return 2
			fi
		fi
		echo "$version"
    else
        echo "Incompatible operating system found" >&2
        return 2
    fi
}

function __main() {
	local BARGS
	BARGS=($*)
	local OS
	OS=$(__get_os)
	echo -e "${BLUE}Removing old Docker versions...${RESET}"
	__run_cmd "for pkg in docker.io docker-doc docker-ce docker-ce-cli docker-compose docker-compose-v2 docker-compose-plugin podman-docker containerd containerd.io runc; do sudo apt-get -y remove \${pkg}; done && sudo apt-get autoclean"
	echo -e "${BLUE}Installing keyrings...${RESET}"
	__run_cmd "sudo apt-get -y update"
	__run_cmd "sudo apt-get -y install ca-certificates curl"
	__run_cmd "sudo install -m 0755 -d /etc/apt/keyrings"
	__run_cmd "sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc"
	__run_cmd "sudo chmod a+r /etc/apt/keyrings/docker.asc"
	echo -e "${BLUE}Adding Docker repository...${RESET}"
	__run_cmd "echo \"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu $OS stable\" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null"
	__run_cmd "sudo apt-get -y update"
	echo -e "${BLUE}Installing Docker...${RESET}"
	__run_cmd "sudo apt-get -y install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin"
	echo -e "${BLUE}Adding user to docker group...${RESET}"
	__run_cmd "sudo usermod -aG docker $USER"
	echo -e "${GREEN}Docker installed successfully${RESET}"
}

__main ${ARGS[@]}