add: blog image build

Dockerfile

@@ -0,0 +1,18 @@
+FROM git.d3vyce.fr/d3vyce/hugo:latest AS build
+
+WORKDIR /opt/blog
+COPY . /opt/blog/
+
+RUN git submodule update --recursive
+RUN hugo
+
+
+FROM nginx:1.25-alpine
+
+WORKDIR /usr/share/nginx/html
+COPY --from=build /opt/blog/public /usr/share/nginx/html/
+
+RUN apk update && \
+    apk add --no-cache ca-certificates libc6-compat libstdc++ git
+
+EXPOSE 80/tcp