176 lines
4.7 KiB
Docker
176 lines
4.7 KiB
Docker
# This file is based on these images:
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#
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# - https://hub.docker.com/r/hexpm/elixir/tags - for the builder image
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# E.g.: docker.io/hexpm/elixir:1.20.2-erlang-29.0.3-debian-trixie-20260713-slim
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# - https://hub.docker.com/_/debian/tags?name=trixie-20260713-slim - for the runner image
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# E.g.: docker.io/debian:trixie-20260713-slim
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#
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# Find builder and runner images on Docker Hub or on Hex's Build Server (Bob).
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# We recommend using Bob's Web UI to find recent tags:
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#
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# - https://bob.hex.pm/docker
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#
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# We suggest using the same Debian version for both the builder and runner images.
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#
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# We suggest Debian/Ubuntu instead of Alpine to avoid production compatibility issues
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# (such as DNS resolution failures, and dynamically linked NIFs/precompiled binaries).
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#
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# For finding packages in Debian, search on https://packages.debian.org/.
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ARG ELIXIR_VERSION=1.20.2
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ARG OTP_VERSION=29.0.3
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ARG DEBIAN_VERSION=trixie-20260713-slim
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ARG BUILDER_IMAGE="docker.io/hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}@sha256:6fcd8ea864221b960c1ec418e3b10fa488298ff9e70c9e0f3db18070e610fb8a"
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ARG RUNNER_IMAGE="docker.io/debian:${DEBIAN_VERSION}@sha256:020c0d20b9880058cbe785a9db107156c3c75c2ac944a6aa7ab59f2add76a7bd"
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FROM docker.io/node:24.18.0-bookworm-slim@sha256:6f7b03f7c2c8e2e784dcf9295400527b9b1270fd37b7e9a7285cf83b6951452d AS node_deps
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WORKDIR /assets
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COPY assets/package.json assets/package-lock.json ./
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RUN npm install --global npm@12.0.1 \
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&& npm ci
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FROM ${BUILDER_IMAGE} AS builder
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# install build dependencies
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RUN apt-get update \
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&& apt-get install -y --no-install-recommends \
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build-essential=12.12 \
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git=1:2.47.3-0+deb13u1 \
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&& rm -rf /var/lib/apt/lists/*
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# prepare build dir
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WORKDIR /app
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# install hex + rebar
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RUN mix local.hex --force \
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&& mix local.rebar --force
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# set build ENV
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ENV MIX_ENV="prod"
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# install mix dependencies
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COPY mix.exs mix.lock ./
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RUN mix deps.get --only $MIX_ENV
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RUN mkdir config
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ARG WNH_E2E_ROUTES=false
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ENV WNH_E2E_ROUTES="${WNH_E2E_ROUTES}"
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# copy compile-time config files before we compile dependencies
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# to ensure any relevant config change will trigger the dependencies
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# to be re-compiled.
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COPY config/config.exs config/${MIX_ENV}.exs config/
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RUN mix deps.compile
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RUN mix assets.setup
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COPY priv priv
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COPY lib lib
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# Compile the release
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RUN mix compile
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COPY assets assets
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COPY --from=node_deps /assets/node_modules assets/node_modules
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# compile assets
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RUN mix assets.deploy
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# Changes to config/runtime.exs don't require recompiling the code
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COPY config/runtime.exs config/
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COPY rel rel
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RUN mix release
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# start a new build stage so that the final image will only contain
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# the compiled release and other runtime necessities
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FROM ${RUNNER_IMAGE} AS final
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RUN apt-get update \
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&& apt-get install -y --no-install-recommends \
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ca-certificates=20250419 \
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curl=8.14.1-2+deb13u4 \
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libncurses6=6.5+20250216-2 \
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libsctp1=1.0.21+dfsg-1 \
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libstdc++6=14.2.0-19 \
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locales=2.41-12+deb13u3 \
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openssl=3.5.6-1~deb13u2 \
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&& rm -rf /var/lib/apt/lists/*
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# Set the locale
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RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen \
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&& locale-gen
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ENV LANG=en_US.UTF-8
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ENV LANGUAGE=en_US:en
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ENV LC_ALL=en_US.UTF-8
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WORKDIR "/app"
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RUN chown nobody /app
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# set runner ENV
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ENV MIX_ENV="prod"
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# Only copy the final release from the build stage
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COPY --from=builder --chown=nobody:root /app/_build/${MIX_ENV}/rel/who_need_help ./
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USER nobody
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# If using an environment that doesn't automatically reap zombie processes, it is
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# advised to add an init process such as tini via `apt-get install`
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# above and adding an entrypoint. See https://github.com/krallin/tini for details
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# ENTRYPOINT ["/tini", "--"]
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CMD ["/app/bin/server"]
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FROM ${BUILDER_IMAGE} AS test
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RUN apt-get update \
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&& apt-get install -y --no-install-recommends \
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build-essential=12.12 \
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ca-certificates=20250419 \
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git=1:2.47.3-0+deb13u1 \
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&& rm -rf /var/lib/apt/lists/*
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WORKDIR /app
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RUN mix local.hex --force \
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&& mix local.rebar --force
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ENV MIX_ENV="test"
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COPY mix.exs mix.lock ./
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RUN mix deps.get --only test
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COPY config config
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RUN mix deps.compile
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COPY .dialyzer_ignore.exs .formatter.exs ./
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COPY priv priv
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COPY lib lib
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COPY test test
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RUN mix compile
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CMD ["mix", "test"]
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FROM test AS quality
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# PLTs are expensive to create but deterministic for the pinned Erlang,
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# Elixir, dependency lock, and test environment. Cache them in this dedicated
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# target so every quality command uses the same analyzed dependency set.
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RUN mix dialyzer --plt
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CMD ["mix", "dialyzer"]
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FROM builder AS load_tools
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CMD ["mix", "wnh.load_fixtures"]
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# Keep the production release as the default build result while exposing the
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# dedicated `test`, `quality`, and isolated `load_tools` targets to local
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# verification scripts.
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FROM final AS release
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