# Prepare a testbed for Javascript testing
# This image should be tagged as "isso-js-testbed"

# Note: Do not use alpine images as they do not contain needed GObject, X11
# etc. packages and complicate things
# :22-bookworm resolves to NodeJS 22 on Debian Bookworm as of 04/2024
# https://hub.docker.com/_/node
FROM docker.io/node:22-bookworm AS isso-js-testbed
WORKDIR /src/

# Install everything necessary to run headless
RUN apt-get update && apt-get install -y --no-install-recommends libnss3 libxss1 chromium

# Install the test toolchain from the lockfile, so that the weekly image
# rebuild keeps resolving the versions declared in package.json. Resolving
# these fresh from the registry mixes jest majors: jest-environment-puppeteer
# depends on jest-environment-node ^29, which does not work under jest 30.
#
# This pulls in puppeteer with its ~400Mb headless chrome file, so it takes a
# while.
COPY package.json package-lock.json ./
RUN npm ci

# Need to set $CI so that jest-puppeteer applies sensible launch params for
# running headless chromium. Otherwise, chromium will fail with a "missing
# sandbox" error.
# https://github.com/smooth-code/jest-puppeteer/blob/678ce56b49100f248237757df19f89b2542a9465/packages/jest-environment-puppeteer/src/readConfig.js#L14-L28
ENV CI=true

# Note: No entry point, will be set by docker-compose

# Example of use:
#
# docker build -f docker/Dockerfile-js-testbed -t isso-js-testbed .

# vim: set filetype=dockerfile