Dockerfile

# use the official Bun image
# see all versions at https://hub.docker.com/r/oven/bun/tags
FROM oven/bun:1 AS base
WORKDIR /usr/src/app

# install dependencies into temp directory
# this will cache them and speed up future builds
FROM base AS install
RUN mkdir -p /temp/packages
COPY package.json bun.lockb /temp/packages/
RUN cd /temp/packages && bun install --frozen-lockfile

# copy node_modules from temp directory
# then copy all (non-ignored) project files into the image
FROM base AS prerelease
COPY --from=install /temp/packages/node_modules node_modules
COPY . .

# [optional] tests & build
ENV NODE_ENV=production
RUN bun test
RUN bun run build

# copy production dependencies and source code into final image
FROM base AS release
COPY --from=install /temp/packages/node_modules node_modules
COPY --from=prerelease /usr/src/app/dist dist
COPY --from=prerelease /usr/src/app/public public
COPY --from=prerelease /usr/src/app/vite.config.ts .
COPY --from=prerelease /usr/src/app/package.json .
COPY --from=prerelease /usr/src/app/index.html .

# give the bun user ownership of the app directory
RUN chown -R bun:bun /usr/src/app

# run the app
USER bun
EXPOSE 3000/tcp
ENTRYPOINT [ "bun", "run", "preview", "--", "--host" ]