docker/docker-entrypoint.sh

#!/bin/sh
set -eu

# run an command with the www-data user
run_as() {
  set -- -c "cd /var/www/html; $*"
  if [ "$(id -u)" -eq 0 ]; then
    su - www-data -s /bin/sh "$@"
  else
    sh "$@"
  fi
}

# checks if the the first parameter is greater than the second parameter
version_greater() {
  [ "$(printf '%s\n' "$@" | sort -r -t '-' -k2,2 | sort -t '.' -n -k1,1 -k2,2 -s | head -n 1)" != "$1" ]
}

setup_msmtp() {
  if [ -n "${SMTP_DOMAIN+x}" ] && [ -n "${SMTP+x}" ] && [ "${SMTP}" != "localhost" ]; then
    SITENAME="${FRIENDICA_SITENAME:-Friendica Social Network}"
    echo "Setup MSMTP for '$SITENAME' with '$SMTP' ..."

    smtp_from="${SMTP_FROM:=no-reply}"

    # Setup MSMTP
    usermod --comment "$(echo "$SITENAME" | tr -dc '[:print:]')" root
    usermod --comment "$(echo "$SITENAME" | tr -dc '[:print:]')" www-data

    # add possible mail-senders
    {
      echo "www-data: $smtp_from@$SMTP_DOMAIN"
      echo "root: $smtp_from@$SMTP_DOMAIN"
    } >/etc/aliases

    # create msmtp settings
    {
      echo "account default"
      echo "host $SMTP_DOMAIN"
      if [ -n "${SMTP_PORT+x}" ]; then echo "port $SMTP_PORT"; else echo "port 587"; fi
      echo "from $smtp_from@$SMTP_DOMAIN"
      echo "tls_certcheck off" # No certcheck because of internal docker mail-hostnames
      if [ -n "${SMTP_TLS+x}" ]; then echo "tls on"; fi
      if [ -n "${SMTP_STARTTLS+x}" ]; then echo "tls_starttls on"; fi
      if [ -n "${SMTP_AUTH_USER+x}" ]; then echo "auth on"; fi
      if [ -n "${SMTP_AUTH_USER+x}" ]; then echo "user $SMTP_AUTH_USER"; fi
      if [ -n "${SMTP_AUTH_PASS+x}" ]; then echo "password $SMTP_AUTH_PASS"; fi
      echo "logfile /var/log/msmtp.log"
      echo "aliases /etc/aliases"
    } >/etc/msmtprc

    echo "Setup finished"
  fi
}

setup_msmtp

# just check if we execute apache or php-fpm
if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ]; then
  installed_version="0.0.0.0"
  if [ -f /var/www/html/VERSION ]; then
    installed_version="$(cat /var/www/html/VERSION)"
  fi

  image_version="$(cat /usr/src/friendica/VERSION)"

  # no downgrading possible
  if version_greater "$installed_version" "$image_version"; then
    echo "Can't copy Friendica sources because the version of the data ($installed_version) is higher than the docker image ($image_version)"
    exit 1
  fi

  # check it just in case the version is greater or if we force the upgrade
  if version_greater "$image_version" "$installed_version" || [ "${FRIENDICA_UPGRADE:-false}" = "true" ]; then
    echo "Initializing Friendica $image_version ..."

    if [ "$installed_version" != "0.0.0.0" ]; then
      echo "Upgrading Friendica from $installed_version ..."
    fi

    if [ "$(id -u)" -eq 0 ]; then
      rsync_options="-rlDog --chown=www-data:www-data"
    else
      rsync_options="-rlD"
    fi

    rsync $rsync_options --delete --exclude-from=/upgrade.exclude /usr/src/friendica/ /var/www/html/

    # Update docker-based config files, but never delete other config files
    rsync $rsync_options --update /usr/src/friendica/config/ /var/www/html/config/

    # In case there is no .htaccess, copy it from the default dist file
    if [ ! -f "/var/www/html/.htaccess" ]; then
      cp "/var/www/html/.htaccess-dist" "/var/www/html/.htaccess"
    fi

    if [ -d /var/www/html/view/smarty3 ]; then
      chmod -R 777 /var/www/html/view/smarty3
    fi
    echo "Initializing finished"

    # install
    if [ "$installed_version" = "0.0.0.0" ]; then
      echo "New Friendica instance"

      install=false
      if [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${FRIENDICA_ADMIN_MAIL+x}" ] && [ -n "${FRIENDICA_URL+x}" ]; then
        echo "Installation with environment variables"

        FRIENDICA_TZ=${FRIENDICA_TZ:-America/LosAngeles}
        FRIENDICA_LANG=${FRIENDICA_LANG:-en}
        MYSQL_PORT=${MYSQL_PORT:-3306}

        # shellcheck disable=SC2016
        install_options='-s --dbhost "'$MYSQL_HOST'" --dbport "'$MYSQL_PORT'" --dbdata "'$MYSQL_DATABASE'" --dbuser "'$MYSQL_USER'" --dbpass "'$MYSQL_PASSWORD'"'

        # shellcheck disable=SC2016
        install_options=$install_options' --admin "'$FRIENDICA_ADMIN_MAIL'" --tz "'$FRIENDICA_TZ'" --lang "'$FRIENDICA_LANG'" --url "'$FRIENDICA_URL'"'
        install=true
      fi

      if [ "$install" = true ]; then
        echo "Waiting for MySQL $MYSQL_HOST initialization..."
        if run_as "php /var/www/html/bin/wait-for-connection $MYSQL_HOST ${MYSQL_PORT:-3306} 300"; then

          echo "Starting Friendica installation ..."
          run_as "php /var/www/html/bin/console.php autoinstall $install_options"

          rm -fr /var/www/html/view/smarty3/compiled

          # load other config files (*.config.php) to the config folder
          if [ -d "/usr/src/config" ]; then
            rsync $rsync_options --ignore-existing /usr/src/config/ /var/www/html/config/
          fi

          echo "Installation finished"
        else
          echo "[ERROR] Waited 300 seconds, no response" >&2
        fi
      else
        echo "Running web-based installer on first connect!"
      fi
    # upgrade
    else
      echo "Upgrading Friendica ..."
      run_as 'php /var/www/html/bin/console.php dbstructure update'
      echo "Upgrading finished"
    fi
  fi
fi

exec "$@"