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45 changes: 45 additions & 0 deletions .dockerignore
Original file line number Diff line number Diff line change
@@ -0,0 +1,45 @@
# This file excludes paths from the Docker build context.
#
# By default, Docker's build context includes all files (and folders) in the
# current directory. Even if a file isn't copied into the container it is still sent to
# the Docker daemon.
#
# There are multiple reasons to exclude files from the build context:
#
# 1. Prevent nested folders from being copied into the container (ex: exclude
# /assets/node_modules when copying /assets)
# 2. Reduce the size of the build context and improve build time (ex. /build, /deps, /doc)
# 3. Avoid sending files containing sensitive information
#
# More information on using .dockerignore is available here:
# https://docs.docker.com/engine/reference/builder/#dockerignore-file

.dockerignore

# Ignore git, but keep git HEAD and refs to access current commit hash if needed:
#
# $ cat .git/HEAD | awk '{print ".git/"$2}' | xargs cat
# d0b8727759e1e0e7aa3d41707d12376e373d5ecc
.git
!.git/HEAD
!.git/refs

# Common development/test artifacts
/cover/
/doc/
/test/
/tmp/
.elixir_ls

# Mix artifacts
/_build/
/deps/
*.ez

# Generated on crash by the VM
erl_crash.dump

# Static artifacts - These should be fetched and built inside the Docker image
/assets/node_modules/
/priv/static/assets/
/priv/static/cache_manifest.json
92 changes: 92 additions & 0 deletions Dockerfile
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@@ -0,0 +1,92 @@
# 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-20240130-slim - for the release image
# - https://pkgs.org/ - resource for finding needed packages
# - Ex: hexpm/elixir:1.16.1-erlang-26.1.2-debian-bullseye-20240130-slim
#
ARG ELIXIR_VERSION=1.16.1
ARG OTP_VERSION=26.1.2
ARG DEBIAN_VERSION=bullseye-20240130-slim

ARG BUILDER_IMAGE="hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
ARG RUNNER_IMAGE="debian:${DEBIAN_VERSION}"

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

COPY lib lib

COPY assets assets

# compile assets
RUN mix assets.deploy

# Compile the release
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

# 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/fitness ./

USER nobody

CMD ["/app/bin/server"]
7 changes: 4 additions & 3 deletions config/config.exs
Original file line number Diff line number Diff line change
Expand Up @@ -17,8 +17,9 @@ config :fitness, FitnessWeb.Endpoint,
pubsub_server: Fitness.PubSub,
live_view: [signing_salt: "vOF6D4CD"]


config :tailwind, version: "3.3.1", default: [
config :tailwind,
version: "3.3.1",
default: [
args: ~w(
--config=tailwind.config.js
--input=css/app.css
Expand All @@ -27,7 +28,7 @@ config :fitness, FitnessWeb.Endpoint,
cd: Path.expand("../assets", __DIR__)
]

config :chartkick, json_serializer: Jason
config :chartkick, json_serializer: Jason

# Configures the mailer
#
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2 changes: 1 addition & 1 deletion config/prod.exs
Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@ import Config
config :fitness, FitnessWeb.Endpoint, cache_static_manifest: "priv/static/cache_manifest.json"

# Do not print debug messages in production
config :logger, level: :info
config :logger, level: :warning

# ## SSL Support
#
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