Merge pull request #15 from tminaorg/bun-docker-distroless

fix: Node lts slim and switch to tini

Dockerfile

@@ -1,5 +1,7 @@
-# use dumb-init to add graceful shutdown
-FROM building5/dumb-init:1.2.1 as init
+# use tini to add graceful shutdown
+FROM debian:stable-slim as init
+RUN apt-get -qq update \
+    && apt-get -qq install -y tini
 
 # use the official Bun image
 # see all versions at https://hub.docker.com/r/oven/bun/tags
@@ -9,33 +11,32 @@ WORKDIR /usr/src/app
 # use the official Node image until Bun fixes bug for static assets
 # install dependencies into temp directory
 # this will cache them and speed up future builds
-FROM node:20.9.0-slim AS install
+FROM node:lts-slim AS install
 WORKDIR /usr/src/app
 RUN mkdir -p /temp
 COPY package.json package-lock.json /temp/
 RUN cd /temp && npm ci
 
 # copy node_modules from temp directory
 # then copy all (non-ignored) project files into the image
-FROM base AS prerelease
+FROM base AS build
 COPY --from=install /temp/node_modules node_modules
 COPY . .
 
 # build
 ENV NODE_ENV=production
-RUN bun run build
+RUN [ "bun", "run", "build" ]
 
 # copy production dependencies and source code into final image
 FROM base AS release
-COPY --from=init /dumb-init /usr/local/bin/
-COPY --from=prerelease /usr/src/app/node_modules node_modules
-COPY --from=prerelease /usr/src/app/build ./
-COPY --from=prerelease /usr/src/app/package.json ./
 
-# switch to nonroot user
-USER bun
+COPY --from=init /usr/bin/tini /usr/bin/
+COPY --from=build /usr/src/app/node_modules node_modules/
+COPY --from=build /usr/src/app/build ./
+COPY --from=build /usr/src/app/package.json ./
+
 EXPOSE 3000
 
 # run the app
-ENTRYPOINT [ "/usr/local/bin/dumb-init", "--" ]
+ENTRYPOINT [ "tini", "--" ]
 CMD [ "bun", "run", "start" ]