Added configuration for Docker

Dockerfile

@@ -0,0 +1,46 @@
+FROM alpine:latest
+
+RUN apk --update \
+    add lighttpd && \
+    rm -rf /var/cache/apk/*
+
+ADD lighttpd.conf /etc/lighttpd/lighttpd.conf
+RUN adduser www-data -G www-data -H -s /bin/false -D
+
+RUN apk --update add \
+    php \
+    php-common \
+    php-cgi \
+    php-dom && \
+    rm -rf /var/cache/apk/*
+    #php-iconv \
+    #php-json \
+    #php-gd \
+    #php-curl \
+    #php-xml \
+    #php-simplexml \
+    #php-pgsql \
+    #php-imap \
+    #fcgi \
+    #php-pdo \
+    #php-pdo_pgsql \
+    #php-soap \
+    #php-xmlrpc \
+    #php-posix \
+    #php-gettext \
+    #php-ldap \
+    #php-ctype \
+
+RUN mkdir -p /run/lighttpd/ && \
+    chown www-data. /run/lighttpd/
+
+ADD lighttpd.conf /etc/lighttpd/lighttpd.conf
+ADD index.php /var/www/index.php
+ADD php.ini /etc/php7/php.ini
+
+EXPOSE 80
+
+VOLUME /var/www
+WORKDIR /var/www
+
+CMD  lighttpd -D -f /etc/lighttpd/lighttpd.conf

Makefile

@@ -0,0 +1,7 @@
+build:
+	mkdir -p files
+	docker build -t lightphp .
+start:
+	sudo docker-compose up -d
+stop:
+	sudo docker-compose rm -s

README.md

@@ -63,3 +63,18 @@ $file_max_age = $MIN_FILEAGE +
 ```
 ...which is a basic exponential decay curve that favours smaller files, meaning small files are kept longer and really big ones are deleted relatively quickly.  
 **$DECAY_EXP** is one of the configurable globals and basically makes the curve more or less exponential-looking. Set to 1 for a completely linear relationship.  
+
+# Using Docker
+Easy way to deploy services.
+Configuration allows you to start a server for 80 of your host.
+The image is built on Alpine + Lighttpd and a minimal PHP set. Image size 21MB. 
+
+Installation 
+```
+make build
+make start
+```
+To purge the old files, add string  to your crontab string
+```
+0 0 * * * docker exec --user www-data lightphp php index.php purge  > /dev/null
+```

docker-compose.yml

@@ -0,0 +1,15 @@
+version: '3'
+
+services:
+  app:
+    image: "lightphp"
+    container_name: lightphp
+    restart: always
+    ports:
+      - "80:80"
+    volumes:
+      - ./files:/var/www/files
+      # OR
+      #- ./www:/var/www
+      #- ./lighttpd:/etc/lighttpd
+      #- ./php7:/etc/php7

lighttpd.conf

@@ -0,0 +1,27 @@
+server.document-root = "/var/www/"
+
+server.port = 80
+
+server.username = "www-data"
+server.groupname = "www-data"
+
+mimetype.assign = (
+  ".html" => "text/html",
+  ".htm" => "text/html",
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png",
+  ".gif" => "image/gif",
+  ".ico" => "image/vnd.microsoft.icon"
+)
+
+include "mod_fastcgi.conf"
+
+static-file.exclude-extensions = ( ".fcgi", ".php", ".rb", "~", ".inc" )
+index-file.names = ( "index.html", "index.htm" , "index.php")
+
+server.modules += ( "mod_rewrite" )
+url.rewrite = (
+  "^/?$" => "/index.php",
+  "^/(.*)$" => "/files/$1"
+)