chore: add docker configuration

apps/user-app/Dockerfile

@@ -0,0 +1,37 @@
+FROM node:20-alpine AS alpine
+RUN apk update
+RUN apk add --no-cache libc6-compat
+
+# Setup pnpm
+ENV PNPM_HOME="/pnpm"
+ENV PATH="$PNPM_HOME:$PATH"
+RUN corepack enable pnpm
+
+FROM alpine AS builder
+WORKDIR /app
+RUN pnpm i -g turbo
+COPY . .
+RUN turbo prune user-app --docker
+
+FROM alpine AS installer
+WORKDIR /app
+# First install dependencies
+COPY .gitignore .gitignore
+COPY --from=builder /app/out/json/ .
+COPY --from=builder /app/out/pnpm-lock.yaml ./pnpm-lock.yaml
+RUN pnpm install
+
+# Build the project
+COPY --from=builder /app/out/full/ .
+COPY turbo.json turbo.json
+RUN pnpm turbo run build --filter=user-app...
+
+FROM nginx:alpine AS runner
+# Copy custom Nginx configuration
+COPY nginx-spa.conf /etc/nginx/conf.d/default.conf
+
+# Copy the built files from the installer stage
+COPY --from=installer /app/apps/user-app/dist /usr/share/nginx/html
+
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]