Gcp Notes/basic-web-server-startup.sh

#! /bin/bash
  if [ -f /etc/startup_script_completed ]; then
  exit 0
  fi
  apt-get update
  apt-get install apache2 -y
  a2ensite default-ssl
  a2enmod ssl
  file_ports="/etc/apache2/ports.conf"
  file_http_site="/etc/apache2/sites-available/000-default.conf"
  file_https_site="/etc/apache2/sites-available/default-ssl.conf"
  http_listen_prts="Listen 80\nListen 8008\nListen 8080\nListen 8088"
  http_vh_prts="*:80 *:8008 *:8080 :8088"
  https_listen_prts="Listen 443\nListen 8443"
  https_vh_prts=":443 :8443"
  vm_hostname="$(curl -H "Metadata-Flavor:Google" 

  http://metadata.google.internal/computeMetadata/v1/instance/name)"
  echo "Page served from: $vm_hostname" | 

  tee /var/www/html/index.html
  echo "Page served from: $vm_hostname" | 

  tee /var/www/html/index.html
  prt_conf="$(cat "$file_ports")"
  prt_conf_2="$(echo "$prt_conf" | sed "s|Listen 80|${http_listen_prts}|")"
  prt_conf="$(echo "$prt_conf_2" | sed "s|Listen 443|${https_listen_prts}|")"
  echo "$prt_conf" | tee "$file_ports"
  http_site_conf="$(cat "$file_http_site")"
  http_site_conf_2="$(echo "$http_site_conf" | sed "s|:80|${http_vh_prts}|")"
  echo "$http_site_conf_2" | tee "$file_http_site"
  https_site_conf="$(cat "$file_https_site")"
  https_site_conf_2="$(echo "$https_site_conf" | sed "s|default:443|${https_vh_prts}|")"
  echo "$https_site_conf_2" | tee "$file_https_site"
  systemctl restart apache2
  touch /etc/startup_script_completed