Blog/Dockerfile

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Docker

# use the official Bun image
# see all versions at https://hub.docker.com/r/oven/bun/tags
FROM oven/bun:1.0.25-alpine 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/dev
COPY package.json bun.lockb /temp/dev/
RUN cd /temp/dev && bun install --frozen-lockfile
# install with --production (exclude devDependencies)
RUN mkdir -p /temp/prod
COPY package.json bun.lockb /temp/prod/
RUN cd /temp/prod && bun install --frozen-lockfile --production
# copy node_modules from temp directory
# then copy all (non-ignored) project files into the image
FROM base AS release
COPY --from=install /temp/dev/node_modules node_modules
COPY . .
# [optional] tests & build
ENV NODE_ENV=production
RUN bun test
# run the app
USER bun
EXPOSE 3000/tcp
ENTRYPOINT [ "bun", "run", "./src/index.ts" ]