Add dockerfile for export

.dockerignore

@@ -1,3 +1,4 @@
 .next
 out
-node_modules
+node_modules
+.devcontainer

Dockerfile.export

@@ -0,0 +1,28 @@
+
+# Install dependencies only when needed
+FROM node:lts-alpine AS deps
+WORKDIR /app
+# Check https://github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.
+RUN apk update --no-cache \
+  && apk upgrade --no-cache \
+  && apk add --no-cache libc6-compat \
+  && yarn config set registry https://registry.npmmirror.com \
+  && yarn config set sharp_binary_host "https://npmmirror.com/mirrors/sharp" \
+  && yarn config set sharp_libvips_binary_host "https://npmmirror.com/mirrors/sharp-libvips"
+COPY package.json yarn.lock ./
+RUN yarn install --frozen-lockfile
+
+# Rebuild the source code only when needed
+FROM node:lts-alpine AS builder
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+RUN apk update --no-cache \
+  && apk upgrade --no-cache \
+  && yarn config set registry https://registry.npmmirror.com \
+  # && yarn build && yarn install --production --ignore-scripts --prefer-offline
+  && yarn build:export
+
+FROM nginx:alpine
+WORKDIR /app
+COPY --from=builder /app/out /usr/share/nginx/html