Installation script for RStudioServer

install_RStudioServer.bash

#!/bin/bash

## Install R, bspm and RStudio Server on Ubuntu 20.04 or 22.04 (focal or jammy).
##
## Install via ssh with:
## ssh -i "RStudioServerKey.pem" ubuntu@ec2-instance 'sudo bash -s' < $THIS_SCRIPT
##
## Note that RStudio Server starts immediately after installation.
## Access it via http://ec2-xx-xx-xx-xx.eu-central-1.compute.amazonaws.com:8787

# Set strict mode
set -euo pipefail

# Global variables
LOG_FILE="/tmp/rstudio_install_$(date +%Y%m%d_%H%M%S).log"
RSTUDIO_SERVER_VERSION="2024.04.2-764"
RSTUDIO_SERVER_DEB="rstudio-server-${RSTUDIO_SERVER_VERSION}-amd64.deb"

# Function to log messages
log()
{
	echo "[$(date +'%Y-%m-%d %H:%M:%S')] $1" | tee -a "$LOG_FILE"
}

# Quit the script with an error message
bail()
{
	local errormsg="${1:-Unknown error}"
	log "Error: $errormsg"
	printf "\033[1;31mError: %s\033[0m\n" "$errormsg" >&2
	exit 1
}

# Cleanup function
cleanup()
{
	log "Cleaning up..."
	rm -f "$RSTUDIO_SERVER_DEB"
}

# Check internet connectivity
check_internet()
{
	log "Checking internet connectivity..."
	if ! ping -c 1 google.com &> /dev/null; then
		bail "No internet connection. Please check your network settings."
	fi
}

# Check if script is run as root
check_root()
{
	log "Checking root privileges..."
	if [ "$EUID" -ne 0 ]; then
		bail "This script must be run as root"
	fi
}

# Check Ubuntu version
check_ubuntu_version()
{
	log "Checking Ubuntu version..."
	UBUNTU_VERSION=$(lsb_release -cs)
	if [[ ! "$UBUNTU_VERSION" =~ ^(focal|jammy)$ ]]; then
		bail "Unsupported Ubuntu version: $UBUNTU_VERSION"
	fi
}

# Install R and set up CRAN repository
install_r_and_cran()
{
	log "Installing R and setting up CRAN repository..."
	bash <(curl -L "https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_${UBUNTU_VERSION}.sh") >> "$LOG_FILE" 2>&1 || bail "Failed to run r2u script"
}

# Install dependencies
install_dependencies()
{
	log "Installing dependencies..."
	apt-get update >> "$LOG_FILE" 2>&1 || bail "Failed to update package lists"
	apt-get install -y libssl3 libssl-dev libclang-dev libclang-14-dev >> "$LOG_FILE" 2>&1 || bail "Failed to install dependencies"
}

# Install RStudio Server
install_rstudio_server()
{
	log "Installing RStudio Server..."
	wget --no-verbose "https://download2.rstudio.org/server/${UBUNTU_VERSION}/amd64/${RSTUDIO_SERVER_DEB}" >> "$LOG_FILE" 2>&1 || bail "Failed to download RStudio Server"
	dpkg -i "$RSTUDIO_SERVER_DEB" >> "$LOG_FILE" 2>&1 || bail "Failed to install RStudio Server"
}

# Main function
main()
{
	log "Starting installation process..."

	check_root
	check_internet
	check_ubuntu_version

	install_r_and_cran
	install_dependencies
	install_rstudio_server

	log "Installation completed successfully"
}

# Set trap for cleanup
trap cleanup EXIT

# Run main function
main
printf '🌈\033[38;5;196mS\033[38;5;208mU\033[38;5;226mC\033[38;5;46mC\033[38;5;21mE\033[38;5;93mS\033[38;5;163mS\033[0m!✨\n'
exit 0