add: create Dockerfile and .dockerignore for containerization

.dockerignore

@@ -0,0 +1,21 @@
+# Folders
+
+coverage/
+dist/
+node_modules/
+out/
+test/
+
+# Files
+
+.dockerignore
+.editorconfig
+.env
+.gitignore
+.lintstagedrc
+.prettierrc
+commitlint.config.js
+Dockerfile
+eslint.config.mjs
+nest-cli.json
+\*.md

Dockerfile

@@ -0,0 +1,38 @@
+FROM node:20.17.0-alpine AS base
+RUN addgroup -S backend && \
+    adduser -S backend -G backend
+
+#--------------------------------------------------
+
+FROM base AS base-dev
+RUN npm install -g --ignore-scripts pnpm
+
+#--------------------------------------------------
+
+FROM base-dev AS build
+WORKDIR /app
+COPY package.json pnpm-lock.yaml tsconfig.json tsconfig.build.json ./
+RUN pnpm install --frozen-lockfile --ignore-scripts
+COPY ./src ./src
+RUN pnpm run build --webpack
+
+#--------------------------------------------------
+
+FROM base-dev AS production-dev
+ARG NODE_ENV=production
+WORKDIR /app
+COPY package.json pnpm-lock.yaml ./
+RUN pnpm install --frozen-lockfile --prod --ignore-scripts && \
+    pnpm cache delete
+
+#--------------------------------------------------
+
+FROM base AS production
+ARG NODE_ENV=production
+WORKDIR /app
+COPY --from=production-dev /app/node_modules ./node_modules
+COPY --from=build /app/dist ./
+COPY package.json ./
+USER backend
+ENTRYPOINT ["node", "main.js"]
+EXPOSE 3000