Auto reload caddy and add basicauth example (#1706)

* add live reload and basicauth

caddy/Dockerfile

@@ -6,12 +6,14 @@ ARG plugins="cors"
 
 ## ARG plugins="cors cgi cloudflare azure linode"
 
-
 RUN caddyplug install ${plugins}
-    
+
+RUN apk add --no-cache inotify-tools \
+    && echo -e "#!/bin/sh\nwhile inotifywait -e modify /etc/caddy; do\n\tpkill caddy\ndone " >> /start.sh \
+    && chmod +x /start.sh
 
 EXPOSE 80 443 2015
 
 WORKDIR /var/www/public
 
-CMD ["/usr/bin/caddy", "-conf", "/etc/Caddyfile","-agree"]
+CMD ["sh","-c","/start.sh & /usr/bin/caddy -conf /etc/caddy/Caddyfile -agree"]