Dockerfile-discord-bot

# Official lightweight Node.js image
# https://hub.docker.com/_/node
FROM node:18-slim

# Arbitrary but conventional working directory
WORKDIR /usr/src/app

# Note we isolate work across sub-packages below, organized from least to most
# likely to change, to maximize Docker filesystem layer cache hits. For
# example, organized this way a site content only change will usually only need
# to execute the final Eleventy build step.

# External dependencies
COPY package*.json tsconfig.base.json ./
COPY packages/lit-dev-tools-cjs/package*.json ./packages/lit-dev-tools-cjs/
COPY packages/lit-dev-tools-esm/package*.json ./packages/lit-dev-tools-esm/
COPY packages/lit-dev-server/package*.json ./packages/lit-dev-server/
COPY packages/lit-dev-discord-bot/package*.json ./packages/lit-dev-discord-bot/
RUN npm ci

# Tooling code
COPY packages/lit-dev-tools-cjs/ ./packages/lit-dev-tools-cjs/
COPY packages/lit-dev-tools-esm/ ./packages/lit-dev-tools-esm/
COPY packages/lit-dev-server/ ./packages/lit-dev-server/
COPY packages/lit-dev-discord-bot/ ./packages/lit-dev-discord-bot/
RUN npm run build:ts -w packages/lit-dev-tools-cjs -w packages/lit-dev-tools-esm -w packages/lit-dev-server -w packages/lit-dev-discord-bot

# Run the web service on container startup.
#
# IMPORTANT: Keep --max-old-space-size in sync with the --memory flag in
# ./cloudbuild-main.yaml. The flag here should be set a little lower than
# --memory (e.g. 75%) to give headroom for other uses [0].
#
# (Node isn't aware of Docker memory limits, so if we don't set this flag we're
# at higher risk for termination and restart. This value determines when V8
# decides to perform garbage collection. Node uses sysinfo totalram as the
# default limit [1], which will be higher than our Docker memory limit.)
#
# [0] https://nodejs.org/api/cli.html#cli_max_old_space_size_size_in_megabytes
# [1] https://github.com/nodejs/node/pull/25576
CMD [ "node", "--max-old-space-size=768", "packages/lit-dev-discord-bot/lib/index.js" ]