Merge branch 'master' into feat-startup

webmails/roundcube/Dockerfile

@@ -3,7 +3,7 @@ FROM php:7.2-apache
 ENV ROUNDCUBE_URL https://github.com/roundcube/roundcubemail/releases/download/1.3.7/roundcubemail-1.3.7-complete.tar.gz
 
 RUN apt-get update && apt-get install -y \
-      zlib1g-dev python3 \
+      zlib1g-dev curl python3 \
  && docker-php-ext-install zip \
  && echo date.timezone=UTC > /usr/local/etc/php/conf.d/timezone.ini \
  && rm -rf /var/www/html/ \
@@ -19,12 +19,12 @@ RUN apt-get update && apt-get install -y \
  && rm -rf /var/lib/apt/lists
 
 COPY php.ini /usr/local/etc/php/conf.d/roundcube.ini
-
 COPY config.inc.php /var/www/html/config/
-
 COPY start.py /start.py
 
 EXPOSE 80/tcp
 VOLUME ["/data"]
 
 CMD /start.py
+
+HEALTHCHECK CMD curl -f -L http://localhost/ || exit 1