Update Docker image to Ubuntu 16.04 and PHP 7.0

.dockerignore

@@ -2,7 +2,14 @@
 .git
 .gitignore
 .github
+.gitattributes
 .dockerignore
 .travis.yml
 tests
 scripts
+config.php
+composer.json
+composer.lock
+CONTRIBUTORS.md
+Makefile
+README.markdown

ChangeLog

@@ -14,6 +14,7 @@ Version 1.2.0 (unreleased)
 * Show last parsing error message in user interface
 * Disable automatically a feed after too many failures
 * Add support for Expires and Cache-Control headers (HTTP cache)
+* Update Docker image to Ubuntu 16.04 and PHP 7.0
 * Add unit tests
 
 Migration procedure from 1.1.x to 1.2.0:

Dockerfile

@@ -1,8 +1,10 @@
-FROM ubuntu:14.04
+FROM ubuntu:16.04
 
 RUN apt-get update && \
-    apt-get install -y apache2 php5 php5-sqlite php5-curl && \
+    DEBIAN_FRONTEND=noninteractive apt-get install -y \
-    apt-get clean && rm -rf /var/lib/apt/lists/*
+    apache2 libapache2-mod-php7.0 php7.0-pgsql php7.0-sqlite3 php7.0-xml php7.0-mcrypt \
+    php7.0-opcache php7.0-mcrypt php7.0-mbstring php7.0-json php7.0-curl && \
+    apt-get clean
 
 RUN echo \
     "ServerName localhost\n" \
@@ -23,10 +25,4 @@ VOLUME /var/www/html/data
 
 EXPOSE 80
 
-ENV APACHE_RUN_USER www-data
-ENV APACHE_RUN_GROUP www-data
-ENV APACHE_LOG_DIR /var/log/apache2
-ENV APACHE_LOCK_DIR /var/lock/apache2
-ENV APACHE_PID_FILE /var/run/apache2.pid
-
 CMD /usr/sbin/apache2ctl -D FOREGROUND