lxdui installer

lxdui-install.sh

#!/bin/bash

# LXDUI Installer

GITREPO=https://github.com/AdaptiveScale/lxdui.git
APP=lxdui

# Check if the OS is ubuntu 14, 16, or 18. 
# Exit with an error message if not!
prerequisites(){
	ver=`lsb_release -r -s`
	lts="$(echo $ver | cut -d'.' -f 1)"
	case "$lts" in
#		14)
#			lts="trusty"
#			echo "OS = Ubuntu Trusty $ver"
#			checkForPreviousLXD
#			installDependenciesTrusty
#		;;
		16)
			lts="xenial"
			echo "OS = Ubuntu Xenial $ver"
			checkForPreviousLXD
			installDependencies
		;;
		18)
			lts="bionic"
			echo "OS = Ubuntu Bionic $ver"
			checkForPreviousLXD
			installDependencies
		;;
		*)
			echo "Sorry! This install script doesn't support your Linux distribution."
			exit
		;;
	esac
}

# Update package manager and install all prerequisites
installDependenciesTrusty(){
	sudo apt-add-repository --yes ppa:zfs-native/stable
	sudo apt update
	sudo apt install -y snapd git libssl-dev build-essential python3-dev python3-pip ubuntu-zfs bridge-utils #&> /dev/null
}
installDependencies(){
	sudo apt update #&> /dev/null
	sudo apt install -y snapd git libssl-dev build-essential python3-dev python3-pip zfsutils-linux bridge-utils criu #&> /dev/null
}

checkForPreviousLXD(){
	if `command -v lxd > /dev/null 2>&1`; then
		echo "Found LXD version `lxd --version`"
		echo ""
		echo "Warning...This script will attemp to remove the LXD instance"  
	  	echo "on the host and install the latest LXD snap package."
	  	echo "This is a destructive process. If you already have containers created" 
	  	echo "please back them up along with the lxd configuration before continuing."
	  	echo ""
		echo "LXD will be automatically initialized with preset values."
		read -r -p "Continue? [y/N] " choice	
		confirm
	fi
}

installLXD(){
	sudo apt purge lxd lxd-client -y
	sudo snap install lxd
	lxd init
}

confirm(){
	case "$choice" in
	    [yY][eE][sS]|[yY]) 
	        sudo rm -rf $APP
	        ;;
	    *)
	        echo "Installation terminated."
	        exit
	        ;;
	esac
}

installAppFromGit(){
	#if the directory already exists warn the user and decide if ths scipt should proceed
	if [ -d "$APP" ]; then
		echo ""
		echo "The '$APP' directory already exists."
		echo "If you continue the previous installation will be deleted."
		echo ""
		read -r -p "Continue with replacing $APP? [y/N] " choice
		confirm
	fi

	git clone $GITREPO

	cd $APP
	sudo pip3 install pip --upgrade
	#python3 setup.py install --user
	pip install . --user #&> /dev/null

}

banner(){
cat<<EOF

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 ██║      ╚██╗██╔╝ ██╔══██╗ ██║   ██║ ██║
 ██║       ╚███╔╝  ██║  ██║ ██║   ██║ ██║
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 ███████╗ ██╔╝ ██╗ ██████╔╝ ╚██████╔╝ ██║
 ╚══════╝ ╚═╝  ╚═╝ ╚═════╝   ╚═════╝  ╚═╝

 LXDUI Installer                              

EOF
}

banner
prerequisites
installLXD
installAppFromGit