# This dockerfile builds an image for the backend package.
# It should be executed with the root of the repo as docker context.
#
# Before building this image, be sure to have run the following commands in the repo root:
#
# yarn install
# yarn tsc
# yarn build
#
# Once the commands have been run, you can build the image using `yarn build-image`

FROM node:16-bullseye-slim

# Install sqlite3 dependencies. You can skip this if you don't use sqlite3 in the image,
# in which case you should also move better-sqlite3 to "devDependencies" in package.json.
RUN apt-get update && \
    apt-get install -y --no-install-recommends libsqlite3-dev python3 build-essential && \
    rm -rf /var/lib/apt/lists/* && \
    yarn config set python /usr/bin/python3

# From here on we use the least-privileged `node` user to run the backend.
WORKDIR /app
RUN chown node:node /app
USER node


# This switches many Node.js dependencies to production mode.
ENV NODE_ENV production

# Copy over Yarn 3 configuration, release, and plugins
COPY --chown=node:node .yarn ./.yarn
COPY --chown=node:node .yarnrc.yml ./

# Copy repo skeleton first, to avoid unnecessary docker cache invalidation.
# The skeleton contains the package.json of each package in the monorepo,
# and along with yarn.lock and the root package.json, that's enough to run yarn install.
COPY --chown=node:node yarn.lock package.json packages/backend/dist/skeleton.tar.gz ./
RUN tar xzf skeleton.tar.gz && rm skeleton.tar.gz

# Note that this install is not immutable, which is one of the reasons we don't recommend Yarn 3 yet
RUN yarn workspaces focus --all --production && rm -rf "$(yarn cache clean)"

# Then copy the rest of the backend bundle, along with any other files we might want.
COPY --chown=node:node packages/backend/dist/bundle.tar.gz app-config*.yaml ./
RUN tar xzf bundle.tar.gz && rm bundle.tar.gz

CMD ["node", "packages/backend", "--config", "app-config.yaml"]