Build static and use nginx instead of the full hugo server (#8)

This pull request will close #4

Hugo server needs about 800mb of memory just to do what nginx can with a way smaller requirements, so it makes sense to stop using `hugo` for serving statics

Dockerfile

@@ -1,13 +1,16 @@
 FROM alpine:latest AS builder
 WORKDIR /src
+COPY . /src
 ARG GOHUGO_LINK=https://github.com/gohugoio/hugo/releases/download/v0.110.0/hugo_0.110.0_linux-amd64.tar.gz
 RUN apk update && apk add curl tar
 RUN curl -LJO ${GOHUGO_LINK} && tar -xf hugo_0.110.0_linux-amd64.tar.gz
-RUN chmod +x /src/hugo
+RUN mv /src/hugo /usr/local/bin/hugo
+RUN chmod +x /usr/local/bin/hugo
+RUN hugo
+
+FROM nginx:stable-alpine
+COPY --from=builder /src/public /var/www
+COPY configs/nginx.conf /etc/nginx/conf.d/default.conf
+EXPOSE 80
+CMD [ "nginx", "-g", "daemon off;" ]
 
-FROM alpine:latest
-WORKDIR /src
-COPY --from=builder /src/hugo /usr/bin/hugo
-COPY . /src
-ENTRYPOINT ["/usr/bin/hugo"]
-CMD ["--help"]