Add container support

Containerfile

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+FROM php:7-apache
+
+RUN docker-php-ext-install exif
+
+RUN set -eux; \
+	\
+	apt-get update; \
+	apt-get install -y --no-install-recommends git; \
+	rm -rf /var/lib/apt/lists/*; \
+	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false
+
+COPY --chown=www-data:www-data . /var/www/html
+
+RUN set -eux; \
+	\
+	sed -i "s/BASE_PATH \\. //" /var/www/html/config.php; \
+	sed -i "s/'GIT_COMMIT_ENABLED', false/'GIT_COMMIT_ENABLED', true/" /var/www/html/config.php
+
+VOLUME /pages
+EXPOSE 80
+
+CMD /var/www/html/container-start.sh

container-start.sh

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+#!/bin/bash
+set -e
+
+# on empty volume copy default pages
+if ! test -f /pages/Home.md ; then
+	cp /var/www/html/pages/* /pages
+
+	(
+		cd /pages
+		git init
+		git config user.email "w2wiki@w2wiki"
+		git config user.name "w2wiki"
+
+		git add -A .
+		git commit -m "Init with default pages"
+	)
+fi
+
+mkdir -p /pages/images
+chown -R www-data:www-data /pages
+
+exec apache2-foreground "$@"