Added dockerfile

Dockerfile

@@ -0,0 +1,20 @@
+FROM debian:buster AS builder
+
+RUN apt-get -qq update \
+	&& DEBIAN_FRONTEND=noninteractive apt-get -qq install -y --no-install-recommends libstdc++6 python-pygments git ca-certificates asciidoc curl \
+	&& rm -rf /var/lib/apt/lists/*
+
+ENV HUGO_VERSION 0.74.3
+ENV HUGO_BINARY hugo_extended_${HUGO_VERSION}_Linux-64bit.deb
+RUN curl -sL -o /tmp/hugo.deb \
+    https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/${HUGO_BINARY} && \
+    dpkg -i /tmp/hugo.deb && \
+    rm /tmp/hugo.deb && \
+    mkdir ${SITE_DIR}
+
+WORKDIR /app
+ADD . .
+RUN hugo -d /usr/share/nginx/html/
+
+FROM nginx:latest
+COPY --from=builder /usr/share/nginx/html/ /usr/share/nginx/html/