Allow different base URLs in caddy and build

Caddyfile

-http://teckids.org {
+http:// {
+    error 404
+}
+
+http://teckids.org, http://*.review.teckids.org {
     root * /srv
     encode zstd gzip
     file_server

Dockerfile

 FROM alpine:latest AS build
 
+ARG BASE_URL=https://teckids.org
+
 RUN apk add --update-cache --repository http://dl-cdn.alpinelinux.org/alpine/edge/community/ zola yarn
 
 COPY . /src
 WORKDIR /src
 
 RUN yarn install
-RUN zola build
+RUN zola build -u $BASE_URL
 
 
 FROM caddy:alpine AS serve