Kai 44fd2a6871
Add Phoenix + Ecto example (#60)
* Boostrap Phoenix application from mix phx.new

* Add opentelemetry dependencies

* Setup opentelemetry for local env

* Setup Dockerfile, docker-compose and otel config

* Configure runtime config for exporter to export to otel collector in prod env

* Generate Posts HTML resources

* Add Release module to run migration in release

* Generate Users LiveView resource

* Add exporter configuration to export directly to external service

* Update README.md to include description and instructions

* Update README.md to include more details on exporting traces

* Fix otlp collector deprecated ports as suggested
2022-02-25 18:45:46 -07:00

90 lines
2.5 KiB
Docker

# 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:1.12.0-erlang-24.0.1-debian-bullseye-20210902-slim
#
ARG BUILDER_IMAGE="hexpm/elixir:1.12.0-erlang-24.0.1-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 \
&& 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 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/demo ./
USER nobody
CMD /app/bin/demo start