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- # Find eligible builder and runner images on Docker Hub. We use Ubuntu/Debian instead of
- # Alpine to avoid DNS resolution issues in production.
- #
- # https://hub.docker.com/r/hexpm/elixir/tags?page=1&name=ubuntu
- # https://hub.docker.com/_/ubuntu?tab=tags
- #
- #
- # This file is based on these images:
- #
- # - https://hub.docker.com/r/hexpm/elixir/tags - for the build image
- # - https://hub.docker.com/_/debian?tab=tags&page=1&name=bullseye-20210902-slim - for the release image
- # - https://pkgs.org/ - resource for finding needed packages
- # - Ex: hexpm/elixir:1.13.1-erlang-24.2-debian-bullseye-20210902-slim
- #
- ARG BUILDER_IMAGE="hexpm/elixir:1.13.1-erlang-24.2-debian-bullseye-20210902-slim"
- ARG RUNNER_IMAGE="debian:bullseye-20210902-slim"
- FROM ${BUILDER_IMAGE} as builder
- # install build dependencies
- RUN apt-get update -y && apt-get install -y build-essential git npm \
- && apt-get clean && rm -f /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
- COPY priv priv
- # note: if your project uses a tool like https://purgecss.com/,
- # which customizes asset compilation based on what it finds in
- # your Elixir templates, you will need to move the asset compilation
- # step down so that `lib` is available.
- COPY assets assets
- # compile assets
- RUN cd assets && npm install
- RUN mix assets.deploy
- # Compile the release
- COPY lib lib
- RUN mix compile
- # 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}
- RUN apt-get update -y && apt-get install -y libstdc++6 openssl libncurses5 locales \
- && apt-get clean && rm -f /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
- # Only copy the final release from the build stage
- COPY --from=builder --chown=nobody:root /app/_build/prod/rel/wb_portfolio ./
- USER nobody
- CMD ["/app/bin/server"]
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