who_need_help/Dockerfile

146 lines
3.8 KiB
Docker

# This file is based on these images:
#
# - https://hub.docker.com/r/hexpm/elixir/tags - for the builder image
# E.g.: docker.io/hexpm/elixir:1.18.4-erlang-27.3.4.13-debian-trixie-20260623-slim
# - https://hub.docker.com/_/debian/tags?name=trixie-20260623-slim - for the runner image
# E.g.: docker.io/debian:trixie-20260623-slim
#
# Find builder and runner images on Docker Hub or on Hex's Build Server (Bob).
# We recommend using Bob's Web UI to find recent tags:
#
# - https://bob.hex.pm/docker
#
# We suggest using the same Debian version for both the builder and runner images.
#
# We suggest Debian/Ubuntu instead of Alpine to avoid production compatibility issues
# (such as DNS resolution failures, and dynamically linked NIFs/precompiled binaries).
#
# For finding packages in Debian, search on https://packages.debian.org/.
ARG ELIXIR_VERSION=1.18.4
ARG OTP_VERSION=27.3.4.13
ARG DEBIAN_VERSION=trixie-20260623-slim
ARG BUILDER_IMAGE="docker.io/hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
ARG RUNNER_IMAGE="docker.io/debian:${DEBIAN_VERSION}"
FROM docker.io/node:22.21.1-bookworm-slim AS node_deps
WORKDIR /assets
COPY assets/package.json assets/package-lock.json ./
RUN npm ci
FROM ${BUILDER_IMAGE} AS builder
# install build dependencies
RUN apt-get update \
&& apt-get install -y --no-install-recommends build-essential git \
&& rm -rf /var/lib/apt/lists/*
# 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
RUN mix assets.setup
COPY priv priv
COPY lib lib
# Compile the release
RUN mix compile
COPY assets assets
COPY --from=node_deps /assets/node_modules assets/node_modules
# compile assets
RUN mix assets.deploy
# Changes to config/runtime.exs don't require recompiling the code
COPY config/runtime.exs config/
COPY rel rel
RUN mix release
# start a new build stage so that the final image will only contain
# the compiled release and other runtime necessities
FROM ${RUNNER_IMAGE} AS final
RUN apt-get update \
&& apt-get install -y --no-install-recommends libstdc++6 openssl libncurses6 locales ca-certificates curl \
&& rm -rf /var/lib/apt/lists/*
# Set the locale
RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen \
&& locale-gen
ENV LANG=en_US.UTF-8
ENV LANGUAGE=en_US:en
ENV LC_ALL=en_US.UTF-8
WORKDIR "/app"
RUN chown nobody /app
# set runner ENV
ENV MIX_ENV="prod"
# Only copy the final release from the build stage
COPY --from=builder --chown=nobody:root /app/_build/${MIX_ENV}/rel/who_need_help ./
USER nobody
# If using an environment that doesn't automatically reap zombie processes, it is
# advised to add an init process such as tini via `apt-get install`
# above and adding an entrypoint. See https://github.com/krallin/tini for details
# ENTRYPOINT ["/tini", "--"]
CMD ["/app/bin/server"]
FROM ${BUILDER_IMAGE} AS test
RUN apt-get update \
&& apt-get install -y --no-install-recommends build-essential git ca-certificates \
&& rm -rf /var/lib/apt/lists/*
WORKDIR /app
RUN mix local.hex --force \
&& mix local.rebar --force
ENV MIX_ENV="test"
COPY mix.exs mix.lock ./
RUN mix deps.get --only test
COPY config config
RUN mix deps.compile
COPY .formatter.exs ./
COPY priv priv
COPY lib lib
COPY test test
RUN mix compile
CMD ["mix", "test"]
# Keep the production release as the default build result while exposing the
# dedicated `test` target to scripts/test.sh.
FROM final AS release