dockerize app

Dockerfile

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+FROM hexpm/elixir:1.16.1-erlang-26.2.3-debian-buster-20240130 AS elixir-builder
+
+RUN apt update && apt install -y git build-essential
+
+# If you're using a hex mirror:
+# ENV HEX_MIRROR=https://my_hex_mirror
+
+RUN mix local.hex --force
+RUN mix local.rebar --force
+
+# -----------------------------------
+# Base Image #2: Elixir Runner
+# - Elixir Application Runner
+#   This is used as a simple operating
+#   system image to host your
+#   application
+# -----------------------------------
+FROM debian:buster as elixir-runner
+
+# You can add any libraries required by your application
+# here:
+
+RUN apt-get update && \
+  apt-get install -y \
+  # If you're using `:crypto`, you'll need openssl installed \
+  libssl-dev \
+  locales \
+  curl \
+  openssh-client
+
+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
+
+# -----------------------------------
+# - stage: install
+# - job: dependencies
+# -----------------------------------
+FROM elixir-builder AS deps
+
+ENV MIX_ENV=prod
+
+# If you're using a hex mirror:
+# ENV HEX_MIRROR=https://my_hex_mirror
+
+WORKDIR /src
+
+COPY config /src/config
+COPY mix.exs mix.lock /src/
+COPY apps/core/mix.exs /src/apps/core/mix.exs
+COPY apps/web/mix.exs /src/apps/web/mix.exs
+
+# Download public key for github.com
+RUN mkdir -p -m 0600 ~/.ssh && ssh-keyscan github.com >> ~/.ssh/known_hosts
+
+# If inside an umbrella project, you also need to add all `mix.exs`
+# e.g
+# COPY apps/my_app_1/mix.exs /src/apps/my_app_1/mix.exs
+# COPY apps/my_app_2/mix.exs /src/apps/my_app_2/mix.exs
+
+RUN --mount=type=ssh mix deps.get --only $MIX_ENV
+
+# -----------------------------------
+# - stage: build
+# - job: compile_deps
+# -----------------------------------
+FROM deps AS compile_deps
+WORKDIR /src
+
+ENV MIX_ENV=prod
+RUN mix deps.compile
+
+# -----------------------------------
+# - stage: build
+# - job: compile_app
+# -----------------------------------
+FROM compile_deps AS compile_app
+WORKDIR /src
+
+ENV MIX_ENV=prod
+
+COPY . .
+
+RUN mix compile --warnings-as-errors
+RUN cd apps/web && mix phx.digest
+
+# -----------------------------------
+# - stage: release
+# - job: mix_release
+# -----------------------------------
+FROM compile_app AS mix_release
+
+WORKDIR /src
+
+ENV MIX_ENV=prod
+
+RUN mix release --path /app --quiet
+
+# -----------------------------------
+# - stage: release
+# - job: release_image
+# -----------------------------------
+FROM elixir-runner AS release_image
+
+# If you need to inject the app revision into the container,
+# uncomment below:
+ARG APP_REVISION=latest
+ENV APP_REVISION=$APP_REVISION
+
+ENV MIX_ENV=prod
+
+USER nobody
+
+COPY --from=mix_release --chown=nobody:nogroup /app /app
+COPY --from=mix_release /src/liveness.sh /app/
+WORKDIR /app
+
+ENTRYPOINT ["/app/bin/go_escuela_lms"]
+CMD ["start"]

docker-compose.yml

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+version: "3.2"
+
+services:
+  postgres:
+    image: sameersbn/postgresql
+    restart: always
+    environment:
+      - PG_PASSWORD=postgres
+    ports:
+      - "5432:5432"

liveness.sh

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+#!/bin/sh
+if ( curl --silent --fail "http://localhost:4000/api" > /dev/null --max-time 10 ) ; then
+    echo "Main Health Endpoint - ok"
+else
+    echo "Main Health Endpoint - Time Out"
+    exit 1
+fi