Serve buscribe-web out of the main nginx container, like thrimbletrimmer

This involves, as part of the nginx build process, having a build container that runs less
in order to render the css before copying it over.

nginx/Dockerfile

@@ -1,6 +1,13 @@
+FROM node:17-alpine AS less
+RUN npm install less -g
+ADD buscribe-web /assets
+WORKDIR /assets
+RUN lessc style.less > style.css
+
 # nginx container contains config that exposes all the various services metrics
 FROM nginx:latest
 ADD nginx/generate-config /
+COPY --from=less /assets /etc/nginx/html/buscribe
 COPY thrimbletrimmer /etc/nginx/html/thrimbletrimmer
 LABEL org.opencontainers.image.source https://github.com/dbvideostriketeam/wubloader
 ENTRYPOINT ["/bin/sh", "-c", "/generate-config && nginx -g \"daemon off;\""]

nginx/generate-config

@@ -5,6 +5,7 @@
 
 # Other vars:
 #  THRIMBLETRIMMER: Set non-empty to also serve thrimbletrimmer on /thrimbletrimmer
+#  BUSCRIBE: Set non-empty to also serve buscribe on /buscribe
 #  SEGMENTS: Set to path to segments dir to also serve segments dir on /segments
 #  SSL: Set to path to file containing SSL cert and key, if any.
 
@@ -26,6 +27,8 @@ LOCATIONS=$(
 	[ -n "$THRIMBLETRIMMER" ] &&
 		echo -e "\t\tlocation = / { return 301 /thrimbletrimmer/; }" &&
 		echo -e "\t\tlocation /thrimbletrimmer { }"
+	[ -n "$BUSCRIBE" ] &&
+		echo -e "\t\tlocation /buscribe { }"
 	[ -n "$SEGMENTS" ] &&
 		echo -e "\t\tlocation /segments/ { alias $SEGMENTS/; }"
 )