add docker support

.docker/nginx-vhost.conf

+server {
+    listen       80;
+    server_name  localhost;
+
+    location / {
+        root   /usr/share/nginx/html;
+        index  index.html index.htm;
+    }
+
+    location ~ /\.docker {
+        deny  all;
+    }
+
+    location /images {
+        alias /images;
+        autoindex on;
+    }
+}
+
+

.gitignore

+*.swp
 config.js
 images/*

Dockerfile

+FROM nginx:alpine
+
+COPY . /usr/share/nginx/html/
+COPY .docker/nginx-vhost.conf /etc/nginx/conf.d/default.conf 
+
+HEALTHCHECK --interval=1m --timeout=10s \
+	CMD nc -z localhost 80 
+
+VOLUME ["/images"]

README.md

@@ -31,6 +31,14 @@ location /path/to/builds/ {
 #### Python Webserver
 For testing purposes or to share files in a LAN, Python can be used. Run `python -m http.server 8080` from within this directory (the directory where `README.md` can be found) and you are done.
 
+#### Docker
+```
+docker build -t gluon-firmware-selector .
+docker run -p 80:80 -v /path/to/firmware/:/images:ro -v /path/to/config.js:/usr/share/nginx/html/config.js:ro --name web_firmware gluon-firmware-selector
+```
+For https support check [jrcs/letsencrypt-nginx-proxy-companion](https://hub.docker.com/r/jrcs/letsencrypt-nginx-proxy-companion)
+
+
 ### List of available router models
 All available router models are specified in `devices.js` via that will match against the filenames.
 If no hardware revision is given or is it is empty, the revision is extracted from the file name.