Get ready for deployment

.dockerignore

@@ -0,0 +1,18 @@
+.dockerignore
+# there are valid reasons to keep the .git, namely so that you can get the
+# current commit hash
+#.git
+.log
+tmp
+
+# Mix artifacts
+_build
+deps
+*.ez
+releases
+
+# Generate on crash by the VM
+erl_crash.dump
+
+# Static artifacts
+node_modules

Dockerfile

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+# 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:1.13.4-erlang-24.3.3-debian-bullseye-20210902-slim
+#
+ARG BUILDER_IMAGE="hexpm/elixir:1.13.4-erlang-24.3.3-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/aggiedit ./
+
+USER nobody
+
+CMD ["/app/bin/server"]

config/config.exs

@@ -27,7 +27,7 @@ config :aggiedit, AggieditWeb.Endpoint,
 config :aggiedit, Aggiedit.Mailer, adapter: Swoosh.Adapters.Local
 
 # Swoosh API client is needed for adapters other than SMTP.
-config :swoosh, :api_client, false
+# config :swoosh, :api_client, false
 
 # Configure esbuild (the version is required)
 config :esbuild,

config/runtime.exs

@@ -32,6 +32,16 @@ if config_env() == :prod do
     pool_size: String.to_integer(System.get_env("POOL_SIZE") || "10"),
     socket_options: maybe_ipv6
 
+  config :aggiedit, Aggiedit.Mailer,
+    adapter: Swoosh.Adapters.SMTP,
+    relay: System.get_env("SMTP_SERVER"),
+    port: 587,
+    username: System.get_env("CONTACT_EMAIL"),
+    password: System.get_env("EMAIL_PASSWORD"),
+    tls: :always,
+    auth: :always,
+    no_mx_lookups: true
+
   # The secret key base is used to sign/encrypt cookies and other secrets.
   # A default value is used in config/dev.exs and config/test.exs but you
   # want to use a different value for prod and you most likely don't want

lib/aggiedit/release.ex

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+defmodule Aggiedit.Release do
+  @moduledoc """
+  Used for executing DB release tasks when run in production without Mix
+  installed.
+  """
+  @app :aggiedit
+
+  def migrate do
+    load_app()
+
+    for repo <- repos() do
+      {:ok, _, _} = Ecto.Migrator.with_repo(repo, &Ecto.Migrator.run(&1, :up, all: true))
+    end
+  end
+
+  def rollback(repo, version) do
+    load_app()
+    {:ok, _, _} = Ecto.Migrator.with_repo(repo, &Ecto.Migrator.run(&1, :down, to: version))
+  end
+
+  defp repos do
+    Application.fetch_env!(@app, :ecto_repos)
+  end
+
+  defp load_app do
+    Application.load(@app)
+  end
+end

rel/overlays/bin/migrate

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+#!/bin/sh
+cd -P -- "$(dirname -- "$0")"
+exec ./aggiedit eval Aggiedit.Release.migrate

rel/overlays/bin/migrate.bat

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+call "%~dp0\aggiedit" eval Aggiedit.Release.migrate

rel/overlays/bin/server

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+#!/bin/sh
+cd -P -- "$(dirname -- "$0")"
+PHX_SERVER=true exec ./aggiedit start

rel/overlays/bin/server.bat

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+set PHX_SERVER=true
+call "%~dp0\aggiedit" start