Add experimental Dockerfile

Currently the Dockerfile is not used for the build.

Dockerfile

@@ -0,0 +1,17 @@
+FROM debian AS builder
+
+RUN apt-get update \
+ && apt-get install -y curl jq \
+ && URL=$(curl -sS -H 'Accept: appliction/vnd.github.v3+json' https://api.github.com/repos/gohugoio/hugo/releases/latest | jq -r '.assets[] | select(.name | test("hugo_[^e].*Linux-64bit.tar.gz")) | .browser_download_url') \
+ && curl -sSL -o hugo.tar.gz $URL \
+ && tar -C /usr/local/bin -xf hugo.tar.gz hugo
+
+COPY . /site
+
+WORKDIR /site
+
+RUN hugo
+
+FROM nginx
+
+COPY --from=builder /site/public/ /usr/share/nginx/html