优化 docker 构建的镜像文件大小，添加自动化构建 (#42)

* perf: optimize docker image

* perf: shrink image size

* fix: build docker image

* fix: docker image namespace

* docs: add docker compose example

* docs: fix docker compose example

* docs: fix again :)

* docs: and again.....

Dockerfile

@@ -1,19 +1,20 @@
-FROM node:lts
+# build front-end
+FROM node:lts-alpine AS builder
 
-# copy resource
-RUN mkdir /app
 COPY ./ /app
 WORKDIR /app
 
-# build
-RUN npm install pnpm -g
-RUN pnpm bootstrap
-WORKDIR /app/service
-RUN pnpm install
-WORKDIR /app
+RUN npm install pnpm -g && pnpm install && pnpm run build
+
+# service
+FROM node:lts-alpine
+
+COPY /service /app
+COPY --from=builder /app/dist /app/public
+
+WORKDIR /app
+RUN npm install pnpm -g && pnpm install
 
-EXPOSE 1002
 EXPOSE 3002
 
-CMD ["/bin/bash","./start.sh"]
-
+CMD ["pnpm", "run", "start"]