feat: improve image builder

.dockerignore

@@ -8,7 +8,9 @@
 /doc/
 /test/
 /tmp/
-.elixir_ls
+.elixir_ls/
+.elixir-tools/
+.lexical/
 
 # Mix artifacts
 /_build/
@@ -19,9 +21,9 @@
 erl_crash.dump
 
 # Static artifacts - These should be fetched and built inside the Docker image
-/apps/plataforma_digital/assets/node_modules/
-/apps/plataforma_digital/priv/static/assets/
-/apps/plataforma_digital/priv/static/cache_manifest.json
+/assets/node_modules/
+/priv/static/assets/
+/priv/static/cache_manifest.json
 
 # Nix artifacts
 /.postgres/

Dockerfile

@@ -0,0 +1,82 @@
+ARG ELIXIR_VERSION=1.15.4
+ARG OTP_VERSION=25.3.2.5
+ARG DEBIAN_VERSION=buster-20230612
+
+ARG BUILDER_IMAGE="hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
+ARG RUNNER_IMAGE="debian:${DEBIAN_VERSION}"
+
+FROM ${BUILDER_IMAGE} as builder
+
+# prepare build dir
+WORKDIR /app
+
+RUN apt-get update -y
+RUN apt-get install -y build-essential curl
+RUN curl -sL https://deb.nodesource.com/setup_18.x | bash -
+RUN apt-get install -y nodejs
+RUN apt-get clean && rm -f /var/lib/apt/lists/*_*
+
+# 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
+
+# compile assets
+COPY assets assets
+# RUN echo $(npm --version) && exit 1
+RUN npm ci --prefix assets
+RUN mix assets.deploy
+
+COPY lib lib
+
+# 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 ${RUNNER_IMAGE}
+
+RUN apt-get update -y
+RUN apt-get install -y libstdc++6 openssl libncurses5 locales
+RUN apt-get clean && rm -f /var/lib/apt/lists/*_*
+
+# Set the locale
+RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen && locale-gen
+
+ENV LANG en_US.UTF-8
+ENV LANGUAGE en_US:en
+ENV LC_ALL en_US.UTF-8
+
+WORKDIR "/app"
+RUN chown nobody /app
+
+# set runner ENV
+ENV MIX_ENV="prod"
+
+# Only copy the final release from the build stage
+COPY --from=builder --chown=nobody:root /app/_build/${MIX_ENV}/rel/pescarte ./
+
+USER nobody
+
+CMD ["/app/bin/server"]

Earthfile

@@ -2,8 +2,9 @@ VERSION 0.7
 
 deps:
   ARG ELIXIR=1.15.4
-  ARG OTP=26.0.2
-  FROM hexpm/elixir:${ELIXIR}-erlang-${OTP}-debian-buster-20230612-slim
+  ARG OTP=25.3.2.5
+  ARG DEBIAN_VERSION=buster-20230612
+  FROM hexpm/elixir:${ELIXIR}-erlang-${OTP}-debian-${DEBIAN_VERSION}
   RUN apt update -y && apt install -y build-essential
   WORKDIR /src
   COPY mix.exs mix.lock ./
@@ -59,13 +60,7 @@ release:
   SAVE ARTIFACT /src/_build/prod/rel/pescarte /app/_build/prod/rel/pescarte AS LOCAL release
 
 docker-prod:
-  FROM debian:buster-20230612-slim
-  RUN apt update -y && apt install -y openssl libncurses5
-  WORKDIR /app
-  RUN chown nobody /app
-  USER nobody
-  COPY +release/app/_build/prod/rel/pescarte .
-  CMD ["./bin/pescarte", "eval", "Pescarte.Release.migrate", "&&", "exec", "./bin/pescarte", "start"]
+  FROM DOCKERFILE .
   ARG GITHUB_REPO
   SAVE IMAGE --push ghcr.io/$GITHUB_REPO:prod