My Dockerfile vs the generated one
建立於 差異永不過期
# Find eligible builder and runner images on Docker Hub. We use Ubuntu/Debian instead of
# Find eligible builder and runner images on Docker Hub. We use Ubuntu/Debian
# Alpine to avoid DNS resolution issues in production.
# 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/r/hexpm/elixir/tags?page=1&name=ubuntu
# https://hub.docker.com/_/ubuntu?tab=tags
# https://hub.docker.com/_/ubuntu?tab=tags
#
#
#
# This file is based on these images:
# This file is based on these images:
#
#
# - https://hub.docker.com/r/hexpm/elixir/tags - for the build image
# - 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://hub.docker.com/_/debian?tab=tags&page=1&name=bullseye-20230227-slim - for the release image
# - https://pkgs.org/ - resource for finding needed packages
# - https://pkgs.org/ - resource for finding needed packages
# - Ex: hexpm/elixir:1.14.0-erlang-24.3.4-debian-bullseye-20210902-slim
# - Ex: hexpm/elixir:1.14.4-erlang-25.3.2-debian-bullseye-20230227-slim
#
#
ARG ELIXIR_VERSION=1.14.0
ARG ELIXIR_VERSION=1.14.4
ARG OTP_VERSION=24.3.4
ARG OTP_VERSION=26.0
ARG DEBIAN_VERSION=bullseye-20210902-slim
ARG DEBIAN_VERSION=bullseye-20230227-slim
ARG BUILDER_IMAGE="hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
ARG BUILDER_IMAGE="docker.io/hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
ARG RUNNER_IMAGE="debian:${DEBIAN_VERSION}"
ARG RUNNER_IMAGE="docker.io/debian:${DEBIAN_VERSION}"
FROM ${BUILDER_IMAGE} as builder
FROM ${BUILDER_IMAGE} as builder
# install build dependencies
# install build dependencies (CUSTOM: nodejs + npm)
RUN apt-get update -y && apt-get install -y build-essential git \
RUN apt-get update -y && apt-get install -y build-essential git nodejs npm \
&& apt-get clean && rm -f /var/lib/apt/lists/*_*
&& apt-get clean && rm -f /var/lib/apt/lists/*_*
# prepare build dir
# prepare build dir
WORKDIR /app
WORKDIR /app
# install hex + rebar
# install hex + rebar
RUN mix local.hex --force && \
RUN mix local.hex --force && \
mix local.rebar --force
mix local.rebar --force
# set build ENV
# set build ENV
ENV MIX_ENV="prod"
ENV MIX_ENV="prod"
# install mix dependencies
# install mix dependencies
COPY mix.exs mix.lock ./
COPY mix.exs mix.lock ./
RUN mix deps.get --only $MIX_ENV
RUN mix deps.get --only $MIX_ENV
RUN mkdir config
RUN mkdir config
# copy compile-time config files before we compile dependencies
# copy compile-time config files before we compile dependencies
# to ensure any relevant config change will trigger the dependencies
# to ensure any relevant config change will trigger the dependencies
# to be re-compiled.
# to be re-compiled.
COPY config/config.exs config/${MIX_ENV}.exs config/
COPY config/config.exs config/${MIX_ENV}.exs config/
RUN mix deps.compile
RUN mix deps.compile
# CUSTOM: copy `lib` first so tailwind purge will work
COPY lib lib
COPY priv priv
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
COPY assets assets
# CUSTOM: install npm dependencies
RUN cd assets && npm install
# compile assets
# compile assets
RUN mix assets.deploy
RUN mix assets.deploy
# Compile the release
# Compile the release
COPY lib lib
RUN mix compile
RUN mix compile
# Changes to config/runtime.exs don't require recompiling the code
# Changes to config/runtime.exs don't require recompiling the code
COPY config/runtime.exs config/
COPY config/runtime.exs config/
COPY rel rel
COPY rel rel
RUN mix release
RUN mix release
# start a new build stage so that the final image will only contain
# start a new build stage so that the final image will only contain
# the compiled release and other runtime necessities
# the compiled release and other runtime necessities
FROM ${RUNNER_IMAGE}
FROM ${RUNNER_IMAGE}
RUN apt-get update -y && apt-get install -y libstdc++6 openssl libncurses5 locales \
RUN apt-get update -y && apt-get install -y libstdc++6 openssl libncurses5 locales \
&& apt-get clean && rm -f /var/lib/apt/lists/*_*
&& apt-get clean && rm -f /var/lib/apt/lists/*_*
# Set the locale
# Set the locale
RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen && locale-gen
RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen && locale-gen
ENV LANG en_US.UTF-8
ENV LANG en_US.UTF-8
ENV LANGUAGE en_US:en
ENV LANGUAGE en_US:en
ENV LC_ALL en_US.UTF-8
ENV LC_ALL en_US.UTF-8
WORKDIR "/app"
WORKDIR "/app"
RUN chown nobody /app
RUN chown nobody /app
# set runner ENV
# set runner ENV
ENV MIX_ENV="prod"
ENV MIX_ENV="prod"
# Only copy the final release from the build stage
# Only copy the final release from the build stage
COPY --from=builder --chown=nobody:root /app/_build/${MIX_ENV}/rel/my_app ./
COPY --from=builder --chown=nobody:root /app/_build/${MIX_ENV}/rel/my_app ./
USER nobody
USER nobody
CMD /app/bin/server
CMD ["sh", "-c", "/app/bin/my_app eval TodoList.Release.migrate && /app/bin/server"]