Ubuntu 22.04 Install Script

scripts/installation-ubuntu-22.04.sh

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+#!/bin/bash
+
+echo "This script installs a new BookStack instance on a fresh Ubuntu 22.04 server."
+echo "This script does not ensure system security."
+echo ""
+
+# Generate a path for a log file to output into for debugging
+LOGPATH=$(realpath "bookstack_install_$(date +%s).log")
+
+# Get the current user running the script
+SCRIPT_USER="${SUDO_USER:-$USER}"
+
+# Get the current machine IP address
+CURRENT_IP=$(ip addr | grep 'state UP' -A4 | grep 'inet ' | awk '{print $2}' | cut -f1  -d'/')
+
+# Generate a password for the database
+DB_PASS="$(head /dev/urandom | tr -dc A-Za-z0-9 | head -c 13)"
+
+# The directory to install BookStack into
+BOOKSTACK_DIR="/var/www/bookstack"
+
+# Get the domain from the arguments (Requested later if not set)
+DOMAIN=$1
+
+# Prevent interactive prompts in applications
+export DEBIAN_FRONTEND=noninteractive
+
+# Echo out an error message to the command line and exit the program
+# Also logs the message to the log file
+function error_out() {
+  echo "ERROR: $1" | tee -a "$LOGPATH" 1>&2
+  exit 1
+}
+
+# Echo out an information message to both the command line and log file
+function info_msg() {
+  echo "$1" | tee -a "$LOGPATH"
+}
+
+# Run some checks before installation to help prevent messing up an existing
+# web-server setup.
+function run_pre_install_checks() {
+  # Check we're running as root and exit if not
+  if [[ $EUID -gt 0 ]]
+  then
+    error_out "This script must be ran with root/sudo privileges"
+  fi
+
+  # Check if Apache appears to be installed and exit if so
+  if [ -d "/etc/apache2/sites-enabled" ]
+  then
+    error_out "This script is intended for a fresh server install, existing apache config found, aborting install"
+  fi
+
+  # Check if MySQL appears to be installed and exit if so
+  if [ -d "/var/lib/mysql" ]
+  then
+    error_out "This script is intended for a fresh server install, existing MySQL data found, aborting install"
+  fi
+}
+
+# Fetch domain to use from first provided parameter,
+# Otherwise request the user to input their domain
+function run_prompt_for_domain_if_required() {
+  if [ -z "$DOMAIN" ]
+  then
+    info_msg ""
+    info_msg "Enter the domain (or IP if not using a domain) you want to host BookStack on and press [ENTER]."
+    info_msg "Examples: my-site.com or docs.my-site.com or ${CURRENT_IP}"
+    read -r DOMAIN
+  fi
+
+  # Error out if no domain was provided
+  if [ -z "$DOMAIN" ]
+  then
+    error_out "A domain must be provided to run this script"
+  fi
+}
+
+# Install core system packages
+function run_package_installs() {
+  apt update
+  apt install -y git unzip apache2 php8.1 curl php8.1-curl php8.1-mbstring php8.1-ldap \
+  php8.1-xml php8.1-zip php8.1-gd php8.1-mysql mysql-server-8.0 libapache2-mod-php8.1
+}
+
+# Set up database
+function run_database_setup() {
+  mysql -u root --execute="CREATE DATABASE bookstack;"
+  mysql -u root --execute="CREATE USER 'bookstack'@'localhost' IDENTIFIED WITH mysql_native_password BY '$DB_PASS';"
+  mysql -u root --execute="GRANT ALL ON bookstack.* TO 'bookstack'@'localhost';FLUSH PRIVILEGES;"
+}
+
+# Download BookStack
+function run_bookstack_download() {
+  cd /var/www || exit
+  git clone https://github.com/BookStackApp/BookStack.git --branch release --single-branch bookstack
+}
+
+# Install composer
+function run_install_composer() {
+  EXPECTED_CHECKSUM="$(php -r 'copy("https://composer.github.io/installer.sig", "php://stdout");')"
+  php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
+  ACTUAL_CHECKSUM="$(php -r "echo hash_file('sha384', 'composer-setup.php');")"
+
+  if [ "$EXPECTED_CHECKSUM" != "$ACTUAL_CHECKSUM" ]
+  then
+      >&2 echo 'ERROR: Invalid composer installer checksum'
+      rm composer-setup.php
+      exit 1
+  fi
+
+  php composer-setup.php --quiet
+  rm composer-setup.php
+
+  # Move composer to global installation
+  mv composer.phar /usr/local/bin/composer
+}
+
+# Install BookStack composer dependencies
+function run_install_bookstack_composer_deps() {
+  cd "$BOOKSTACK_DIR" || exit
+  export COMPOSER_ALLOW_SUPERUSER=1
+  php /usr/local/bin/composer install --no-dev --no-plugins
+}
+
+# Copy and update BookStack environment variables
+function run_update_bookstack_env() {
+  cd "$BOOKSTACK_DIR" || exit
+  cp .env.example .env
+  sed -i.bak "s@APP_URL=.*\$@APP_URL=http://$DOMAIN@" .env
+  sed -i.bak 's/DB_DATABASE=.*$/DB_DATABASE=bookstack/' .env
+  sed -i.bak 's/DB_USERNAME=.*$/DB_USERNAME=bookstack/' .env
+  sed -i.bak "s/DB_PASSWORD=.*\$/DB_PASSWORD=$DB_PASS/" .env
+  # Generate the application key
+  php artisan key:generate --no-interaction --force
+}
+
+# Run the BookStack database migrations for the first time
+function run_bookstack_database_migrations() {
+  cd "$BOOKSTACK_DIR" || exit
+  php artisan migrate --no-interaction --force
+}
+
+# Set file and folder permissions
+# Sets current user as owner user and www-data as owner group then
+# provides group write access only to required directories.
+# Hides the `.env` file so it's not visible to other users on the system.
+function run_set_application_file_permissions() {
+  cd "$BOOKSTACK_DIR" || exit
+  chown -R "$SCRIPT_USER":www-data ./
+  chmod -R 755 ./
+  chmod -R 775 bootstrap/cache public/uploads storage
+  chmod 740 .env
+
+  # Tell git to ignore permission changes
+  git config core.fileMode false
+}
+
+# Setup apache with the needed modules and config
+function run_configure_apache() {
+  # Enable required apache modules
+  a2enmod rewrite
+  a2enmod php8.1
+
+  # Set-up the required BookStack apache config
+  cat >/etc/apache2/sites-available/bookstack.conf <<EOL
+<VirtualHost *:80>
+  ServerName ${DOMAIN}
+
+  ServerAdmin webmaster@localhost
+  DocumentRoot /var/www/bookstack/public/
+
+  <Directory /var/www/bookstack/public/>
+      Options -Indexes +FollowSymLinks
+      AllowOverride None
+      Require all granted
+      <IfModule mod_rewrite.c>
+          <IfModule mod_negotiation.c>
+              Options -MultiViews -Indexes
+          </IfModule>
+
+          RewriteEngine On
+
+          # Handle Authorization Header
+          RewriteCond %{HTTP:Authorization} .
+          RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
+
+          # Redirect Trailing Slashes If Not A Folder...
+          RewriteCond %{REQUEST_FILENAME} !-d
+          RewriteCond %{REQUEST_URI} (.+)/$
+          RewriteRule ^ %1 [L,R=301]
+
+          # Handle Front Controller...
+          RewriteCond %{REQUEST_FILENAME} !-d
+          RewriteCond %{REQUEST_FILENAME} !-f
+          RewriteRule ^ index.php [L]
+      </IfModule>
+  </Directory>
+
+  ErrorLog \${APACHE_LOG_DIR}/error.log
+  CustomLog \${APACHE_LOG_DIR}/access.log combined
+
+</VirtualHost>
+EOL
+
+  # Disable the default apache site and enable BookStack
+  a2dissite 000-default.conf
+  a2ensite bookstack.conf
+
+  # Restart apache to load new config
+  systemctl restart apache2
+}
+
+info_msg "This script logs full output to $LOGPATH which may help upon issues."
+sleep 1
+
+run_pre_install_checks
+run_prompt_for_domain_if_required
+info_msg ""
+info_msg "Installing using the domain or IP \"$DOMAIN\""
+info_msg ""
+sleep 1
+
+info_msg "[1/9] Installing required system packages... (This may take several minutes)"
+run_package_installs >> "$LOGPATH" 2>&1
+
+info_msg "[2/9] Preparing MySQL database..."
+run_database_setup >> "$LOGPATH" 2>&1
+
+info_msg "[3/9] Downloading BookStack to ${BOOKSTACK_DIR}..."
+run_bookstack_download >> "$LOGPATH" 2>&1
+
+info_msg "[4/9] Installing Composer (PHP dependency manager)..."
+run_install_composer >> "$LOGPATH" 2>&1
+
+info_msg "[5/9] Installing PHP dependencies using composer..."
+run_install_bookstack_composer_deps >> "$LOGPATH" 2>&1
+
+info_msg "[6/9] Creating and populating BookStack .env file..."
+run_update_bookstack_env >> "$LOGPATH" 2>&1
+
+info_msg "[7/9] Running initial BookStack database migrations..."
+run_bookstack_database_migrations >> "$LOGPATH" 2>&1
+
+info_msg "[8/9] Setting BookStack file & folder permissions..."
+run_set_application_file_permissions >> "$LOGPATH" 2>&1
+
+info_msg "[9/9] Configuring apache server..."
+run_configure_apache >> "$LOGPATH" 2>&1
+
+info_msg "----------------------------------------------------------------"
+info_msg "Setup finished, your BookStack instance should now be installed!"
+info_msg "- Default login email: admin@admin.com"
+info_msg "- Default login password: password"
+info_msg "- Access URL: http://$CURRENT_IP/ or http://$DOMAIN/"
+info_msg "- BookStack install path: $BOOKSTACK_DIR"
+info_msg "- Install script log: $LOGPATH"
+info_msg "---------------------------------------------------------------"