build: Refactor Dockerfile for multi-stage build and smaller image size

Author: ericc-ch

Dockerfile

@@ -1,23 +1,20 @@
-FROM oven/bun:1.2.5 AS base
-WORKDIR /usr/src/app
+FROM oven/bun:alpine AS builder
+WORKDIR /app
 
-FROM base AS install
-COPY package.json bun.lock ./
-RUN bun install --frozen-lockfile --production
+COPY ./package.json ./bun.lock ./
+RUN bun install --frozen-lockfile
 
-
-FROM base AS prerelease
-COPY --from=install /usr/src/app/node_modules node_modules
 COPY . .
-
-ENV NODE_ENV=production
-RUN bun test
 RUN bun run build
 
-FROM base AS release
-COPY --from=install /usr/src/app/node_modules node_modules
-COPY --from=prerelease /usr/src/app/dist/ .
+FROM oven/bun:alpine AS runner
+WORKDIR /app
+
+COPY ./package.json ./bun.lock ./
+RUN bun install --frozen-lockfile --production --ignore-scripts --no-cache
+
+COPY --from=builder /app/dist ./dist
+
+EXPOSE 4141
 
-USER bun
-EXPOSE 4141/tcp
-ENTRYPOINT [ "bun", "main.js"]
+CMD ["bun", "run", "dist/main.js"]

package.json

@@ -27,7 +27,7 @@
     "knip": "knip-bun",
     "lint": "eslint .",
     "prepack": "bun run build",
-    "prepare": "NODE_ENV=production || simple-git-hooks",
+    "prepare": "simple-git-hooks",
     "release": "bumpp && bun publish --access public",
     "start": "NODE_ENV=production bun run ./src/main.ts"
   },