added unatendded-upgrades on build

Dockerfile

@@ -14,12 +14,13 @@ apt-get update; \
 apt-get install -y software-properties-common apt-transport-https cron vim ssmtp monit; \
 add-apt-repository -y ppa:ondrej/php; \
 export DEBIAN_FRONTEND=noninteractive; \
-apt-get install -yq php$PHP_VERSION php$PHP_VERSION-cli php$PHP_VERSION-common php$PHP_VERSION-curl php$PHP_VERSION-fpm php$PHP_VERSION-json php$PHP_VERSION-mysql php$PHP_VERSION-opcache php$PHP_VERSION-readline php$PHP_VERSION-xml php$PHP_VERSION-xsl php$PHP_VERSION-gd php$PHP_VERSION-intl php$PHP_VERSION-bz2 php$PHP_VERSION-bcmath php$PHP_VERSION-imap php$PHP_VERSION-gd php$PHP_VERSION-mbstring php$PHP_VERSION-pgsql php$PHP_VERSION-sqlite3 php$PHP_VERSION-xmlrpc php$PHP_VERSION-zip  php$PHP_VERSION-odbc php$PHP_VERSION-snmp php$PHP_VERSION-interbase php$PHP_VERSION-ldap php$PHP_VERSION-tidy php-tcpdf php-redis php-imagick;
+apt-get install -yq php$PHP_VERSION php$PHP_VERSION-cli php$PHP_VERSION-common php$PHP_VERSION-curl php$PHP_VERSION-fpm php$PHP_VERSION-json php$PHP_VERSION-mysql php$PHP_VERSION-opcache php$PHP_VERSION-readline php$PHP_VERSION-xml php$PHP_VERSION-xsl php$PHP_VERSION-gd php$PHP_VERSION-intl php$PHP_VERSION-bz2 php$PHP_VERSION-bcmath php$PHP_VERSION-imap php$PHP_VERSION-gd php$PHP_VERSION-mbstring php$PHP_VERSION-pgsql php$PHP_VERSION-sqlite3 php$PHP_VERSION-xmlrpc php$PHP_VERSION-zip  php$PHP_VERSION-odbc php$PHP_VERSION-snmp php$PHP_VERSION-interbase php$PHP_VERSION-ldap php$PHP_VERSION-tidy php-tcpdf php-redis php-imagick; \
+/usr/bin/unattended-upgrades -v;
 
 COPY ./conf/ssmtp.conf.template /etc/ssmtp/
 COPY ./monit/monitrc /etc/monit/
 COPY ./monit/cron ./monit/php-fpm /etc/monit/conf-enabled/
 COPY ./php/www.conf /etc/php/$PHP_VERSION/fpm/pool.d/
 COPY ./php/php-fpm.conf ./php/php.ini ./conf/env.conf /etc/php/$PHP_VERSION/fpm/
 
-ENTRYPOINT ["/docker-entrypoint.sh"]
+ENTRYPOINT ["/docker-entrypoint.sh"]