feat: change to Hugo-generated site

Dockerfile

@@ -1,11 +1,20 @@
-FROM nginx
-MAINTAINER Joakim Olsson <joakim@unbound.se>
+FROM nginx:alpine as build
 
-ADD files/*.html /usr/share/nginx/html/
+RUN apk add --update \
+    wget
 
-ADD files/styles/*.css /usr/share/nginx/html/styles/
+ARG HUGO_VERSION="0.89.4"
+RUN wget --quiet "https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_${HUGO_VERSION}_Linux-64bit.tar.gz" && \
+    tar xzf hugo_${HUGO_VERSION}_Linux-64bit.tar.gz && \
+    rm -r hugo_${HUGO_VERSION}_Linux-64bit.tar.gz && \
+    mv hugo /usr/bin
 
+COPY ./ /site
+WORKDIR /site
+RUN hugo
+
+FROM nginx:alpine
 ADD default.conf /etc/nginx/conf.d/default.conf
+COPY --from=build /site/public /usr/share/nginx/html
 
-ENV ALLOW_HUP true
-ENV ROTATE_LOGS true
+WORKDIR /usr/share/nginx/html