Dockerfile with pnpm

[ndrean]

You seemed to have had problems with npm in the dev mode and used successfully pnpm to overcome this.

For the Dockerfile, you don't use pnpm and I assume it works.

If you want to match the code with the Dockerfile, you may want to use pnpmtoo.

For this, you need to install a recent Node.js version via cURL (Debian comes with v12 installed whilst pnpm requires >v16). Note that node comes with npm.

You can use the Dockerfile below.

Note I optionally updated to the most recent Elixir version to match the Elixir 1.16 also optionally updated in the MixProject.

# see https://hub.docker.com/r/hexpm/elixir/tags?page=1
ARG ELIXIR_VERSION=1.16.2
                    ^^^
ARG OTP_VERSION=25.3.2.10
                    ^^^
ARG DEBIAN_VERSION=bullseye-20240130
                    ^^^

ARG BUILDER_IMAGE="hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
ARG RUNNER_IMAGE="debian:${DEBIAN_VERSION}"

FROM ${BUILDER_IMAGE} as builder

# install build dependencies (and curl for EXLA)
RUN apt-get update -y && apt-get install -y build-essential git curl -y libmagic-dev && \
  curl -sL https://deb.nodesource.com/setup_18.x | bash - && \
    ^^^
  apt-get install -y nodejs && \
  apt-get clean && rm -f /var/lib/apt/lists/*_* && \
  node --version && \
  npm --version

RUN npm install -g pnpm
  ^^^

# prepare build dir
WORKDIR /app

# install hex + rebar
RUN mix local.hex --force && \
  mix local.rebar --force

# set build ENV
ENV MIX_ENV="prod"

# install mix dependencies
COPY mix.exs mix.lock ./
RUN mix deps.get --only $MIX_ENV
RUN mkdir config

# copy compile-time config files before we compile dependencies
# to ensure any relevant config change will trigger the dependencies
# to be re-compiled.
COPY config/config.exs config/${MIX_ENV}.exs config/
RUN mix deps.compile

COPY priv priv

COPY lib lib

COPY assets assets

# Install dependencies for assets folder
RUN pnpm install --prefix assets
  ^^^
...

[ndrean]

opened PR #87