fork and modify dockerfile for prod

dockerfile

@@ -0,0 +1,16 @@
+FROM ruby:3.3.0-alpine3.19 as build
+
+COPY . /tmp/
+
+RUN apk update \
+    && apk add npm \
+    && apk add --virtual build-dependencies build-base \
+    && gem install bundler jekyll \
+    && cd /tmp/ \
+    && npm i \
+    && bundle install \
+    && bundle exec jekyll build
+
+FROM nginx:1.25.3-alpine3.18 as prod
+
+COPY --from=build /tmp/_site /usr/share/nginx/html