fix: Dockerfile to use multi-stage build (#121)

Author: the-mzakrzewski

Dockerfile

@@ -1,14 +1,25 @@
 ARG NODE_VERSION=20
-
-FROM node:${NODE_VERSION}
-LABEL org.opencontainers.image.source https://github.com/eddiehubcommunity/CreatorsRegistry
+FROM node:${NODE_VERSION} as builder
 
 WORKDIR /usr/src/app
 
-COPY . .
+COPY package*.json ./
 
 RUN npm ci
 
+COPY . .
+
+RUN npx prisma generate
+RUN npm run build
+
+# Production image, copy all the files and run next
+FROM node:${NODE_VERSION} as production
+LABEL org.opencontainers.image.source https://github.com/eddiehubcommunity/CreatorsRegistry
+
+WORKDIR /usr/src/app
+
+COPY --from=builder /usr/src/app .
+
 EXPOSE 3000
 
-CMD npm run db:prod:migrate && npm run build && npm run start
+CMD npm run db:prod:migrate && npm run start