Add dockerfile

Dockerfile

@@ -0,0 +1,45 @@
+# Stage 1: build codepair backend
+# Start from the node base image
+FROM node:alpine3.18 AS base
+# Set pnpm installation directory and add it to the PATH
+RUN corepack enable
+RUN corepack use pnpm@9
+
+# Download dependency for Prisma
+RUN apk upgrade --update-cache --available && \
+    apk add openssl && \
+    rm -rf /var/cache/apk/*
+
+# Download dependencies for Puppeteer
+RUN apk add --no-cache \
+    chromium \
+    nss \
+    freetype \
+    harfbuzz \
+    ca-certificates \
+    ttf-freefont
+
+# Set the environment variables
+ENV NODE_ENV production
+ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD true
+ENV PUPPETEER_EXECUTABLE_PATH /usr/bin/chromium-browser
+
+# Stage 2: build stage
+FROM base AS build
+COPY . /usr/src/app
+WORKDIR /usr/src/app
+RUN --mount=type=cache,id=pnpm,target=/pnpm/store pnpm install --frozen-lockfile
+RUN pnpm backend db:generate
+RUN pnpm backend build
+RUN pnpm deploy --filter=backend --prod /prod/backend
+WORKDIR /prod/backend
+RUN pnpx prisma generate
+
+# Stage 3: deploy stage
+FROM base AS backend
+COPY --from=build /prod/backend /prod/backend
+WORKDIR /prod/backend
+EXPOSE 3000
+
+# Run the backend server
+CMD ["pnpm", "run", "start:prod"]