Import Apache websites along with their conf files and Let's Encrypt SSL certs from another server

import_sites.sh

#!/bin/bash

# Purpose: Transfer /var/www files from another server
# This PULLS the changes, i.e. it'll fetch stuff from another server
# and write on the one you're running the command from
# Pull: sync remote with local

# Include a config.sh file that has variables
# scriptPath="${BASH_SOURCE%/*}"
# source "${scriptPath}/config.sh"

REMOTE_SSH_HOST='123.123.123.123' # Server IP or FQDN of the remote server you're importing from
REMOTE_SSH_USER='root' 
REMOTE_SSH_KEY="~/.ssh/id_rsa"
REMOTE_SSH_PORT='22'


WWW_DIR='/var/www' # /var/www is the default sites directory for your websites
REMOTE_WWW_DIR='/var/www'

SITES_AVAILABLE_DIR='/etc/apache2/sites-available' # /etc/apache2/sites-available is where vhost.conf files for all domains are by default
REMOTE_SITES_AVAILABLE_DIR='/etc/apache2/sites-available' 

REMOTE_SITES_ENABLED_DIR='/etc/apache2/sites-enabled'
SITES_ENABLED_DIR='/etc/apache2/sites-enabled' # /etc/apache2/sites-enabled is where vhost.conf files for enabled domains is (symlinks to files in sites-available)

import_sites() {
  # apt update && apt install -y rsync

  #Access via remote shell:
  #  Pull: rsync [OPTION...] [USER@]HOST:SRC... [DEST]
  #  Push: rsync [OPTION...] SRC... [USER@]HOST:DEST

  # -q: quiet
  # -a: archive (equivalent of -rlptgoD)
  # -z: compress
  # -e: the shell you want to use

  # /var/www
  echo -e "\n\n  Transferring ${WWW_DIR}"
  rsync -qaze "ssh -p ${REMOTE_SSH_PORT} -i ${REMOTE_SSH_KEY}" ${REMOTE_SSH_USER}@${REMOTE_SSH_HOST}:${REMOTE_WWW_DIR}/* ${WWW_DIR}/

  # /etc/apache2/sites-available
  echo -e "\n\n  Transferring ${SITES_AVAILABLE_DIR}"
  rsync -qaze "ssh -p ${REMOTE_SSH_PORT} -i ${REMOTE_SSH_KEY}" ${REMOTE_SSH_USER}@${REMOTE_SSH_HOST}:${REMOTE_SITES_AVAILABLE_DIR}/* ${SITES_AVAILABLE_DIR}/

  # /etc/apache2/sites-enabled
  echo -e "\n\n  Transferring ${SITES_ENABLED_DIR}"
  rsync -qaze "ssh -p ${REMOTE_SSH_PORT} -i ${REMOTE_SSH_KEY}" ${REMOTE_SSH_USER}@${REMOTE_SSH_HOST}:${REMOTE_SITES_ENABLED_DIR}/* ${SITES_ENABLED_DIR}/

  # SSL Cert files
  echo -e "\n\n  Transferring Let's Encrypt SSL Certificates"
  rsync -qaze "ssh -p ${REMOTE_SSH_PORT} -i ${REMOTE_SSH_KEY}" ${REMOTE_SSH_USER}@${REMOTE_SSH_HOST}:/etc/letsencrypt/archive :/etc/letsencrypt/live :/etc/letsencrypt/renewal /etc/letsencrypt/


  # This works but asks for SSH key passphrase every time the rsync command runs

  # LINKS
  # - https://explainshell.com/explain?cmd=rsync+-avzhe+ssh+tecmint%40webserver.example.com%3A%2Fvar%2Fwww%2F+%2Fvar%2Fwww
  # - https://community.letsencrypt.org/t/moving-and-merging-certs-from-server-a-to-b/19015/3
  # - https://unix.stackexchange.com/questions/368210/how-to-rsync-multiple-source-folders  
}

import_sites