Deployment

.dockerignore

@@ -0,0 +1,39 @@
+# flyctl launch added from .elixir_ls/.gitignore
+.elixir_ls/**/*
+
+# flyctl launch added from .gitignore
+# The directory Mix will write compiled artifacts to.
+_build
+
+# If you run "mix test --cover", coverage assets end up here.
+cover
+
+# The directory Mix downloads your dependencies sources to.
+deps
+
+# Where 3rd-party dependencies like ExDoc output generated docs.
+doc
+
+# Ignore .fetch files in case you like to edit your project deps locally.
+.fetch
+
+# If the VM crashes, it generates a dump, let's ignore it too.
+**/erl_crash.dump
+
+# Also ignore archive artifacts (built via "mix archive.build").
+**/*.ez
+
+# Ignore package tarball (built via "mix hex.build").
+**/book_search-*.tar
+
+# Ignore assets that are produced by build tools.
+priv/static/assets
+
+# Ignore digested assets cache.
+priv/static/cache_manifest.json
+
+# In case you use Node.js/npm, you want to ignore these.
+**/npm-debug.log
+assets/node_modules
+
+fly.toml

.github/workflows/fly.yml

@@ -0,0 +1,15 @@
+name: Fly Deploy
+on:
+  push:
+    branches:
+      - deployment
+env:
+  FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}
+jobs:
+  deploy:
+      name: Deploy app
+      runs-on: ubuntu-latest
+      steps:
+        - uses: actions/checkout@v3
+        - uses: superfly/flyctl-actions/setup-flyctl@master
+        - run: flyctl deploy --remote-only

.github/workflows/tests.yml

@@ -0,0 +1,27 @@
+on: push
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    services:
+      db:
+        image: postgres:11
+        ports: ['5432:5432']
+        env:
+          POSTGRES_PASSWORD: postgres
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+
+    name: run tests
+    steps:
+      - uses: actions/checkout@v2
+      - uses: erlef/setup-beam@v1
+        with:
+          otp-version: '25.2'
+          elixir-version: '1.14.2'
+      - run: mix deps.get
+      - run: mix test

Dockerfile

@@ -0,0 +1,95 @@
+# 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:1.14.2-erlang-25.1.2-debian-bullseye-20210902-slim
+#
+ARG ELIXIR_VERSION=1.14.2
+ARG OTP_VERSION=25.0.3
+ARG DEBIAN_VERSION=bullseye-20210902-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/book_search ./
+
+USER nobody
+
+CMD ["/app/bin/server"]
+# Appended by flyctl
+ENV ECTO_IPV6 true
+ENV ERL_AFLAGS "-proto_dist inet6_tcp"

config/prod.exs

@@ -9,7 +9,8 @@ import Config
 # manifest is generated by the `mix phx.digest` task,
 # which you should run after static files are built and
 # before starting your production server.
-config :book_search, BookSearchWeb.Endpoint, cache_static_manifest: "priv/static/cache_manifest.json"
+config :book_search, BookSearchWeb.Endpoint,
+  cache_static_manifest: "priv/static/cache_manifest.json"
 
 # Do not print debug messages in production
 config :logger, level: :info

fly.toml

@@ -0,0 +1,43 @@
+# fly.toml file generated for booksearch on 2022-12-27T18:49:21-08:00
+
+app = "booksearch"
+kill_signal = "SIGTERM"
+kill_timeout = 5
+processes = []
+
+[deploy]
+  release_command = "/app/bin/migrate"
+
+[env]
+  PHX_HOST = "booksearch.fly.dev"
+  PORT = "8080"
+
+[experimental]
+  allowed_public_ports = []
+  auto_rollback = true
+
+[[services]]
+  http_checks = []
+  internal_port = 8080
+  processes = ["app"]
+  protocol = "tcp"
+  script_checks = []
+  [services.concurrency]
+    hard_limit = 25
+    soft_limit = 20
+    type = "connections"
+
+  [[services.ports]]
+    force_https = true
+    handlers = ["http"]
+    port = 80
+
+  [[services.ports]]
+    handlers = ["tls", "http"]
+    port = 443
+
+  [[services.tcp_checks]]
+    grace_period = "1s"
+    interval = "15s"
+    restart_limit = 0
+    timeout = "2s"

lib/book_search/authors/author.ex

@@ -4,6 +4,7 @@ defmodule BookSearch.Authors.Author do
 
   schema "authors" do
     field :name, :string
+    has_many :books, BookSearch.Books.Book
 
     timestamps()
   end

lib/book_search/books.ex

@@ -0,0 +1,105 @@
+defmodule BookSearch.Books do
+  @moduledoc """
+  The Books context.
+  """
+
+  import Ecto.Query, warn: false
+  alias BookSearch.Repo
+
+  alias BookSearch.Books.Book
+
+  @doc """
+  Returns the list of books.
+
+  ## Examples
+
+      iex> list_books()
+      [%Book{}, ...]
+
+  """
+  def list_books do
+    Repo.all(Book) |> Repo.preload(:tags)
+  end
+
+  @doc """
+  Gets a single book.
+
+  Raises `Ecto.NoResultsError` if the Book does not exist.
+
+  ## Examples
+
+      iex> get_book!(123)
+      %Book{}
+
+      iex> get_book!(456)
+      ** (Ecto.NoResultsError)
+
+  """
+  def get_book!(id), do: Repo.get!(Book, id) |> Repo.preload(:tags)
+
+  @doc """
+  Creates a book.
+
+  ## Examples
+
+      iex> create_book(%{field: value})
+      {:ok, %Book{}}
+
+      iex> create_book(%{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def create_book(attrs \\ %{}, tags \\ []) do
+    %Book{}
+    |> Book.changeset(attrs, tags)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a book.
+
+  ## Examples
+
+      iex> update_book(book, %{field: new_value})
+      {:ok, %Book{}}
+
+      iex> update_book(book, %{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def update_book(%Book{} = book, attrs, tags \\ []) do
+    book
+    |> Repo.preload(:book_content)
+    |> Book.changeset(attrs, tags)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a book.
+
+  ## Examples
+
+      iex> delete_book(book)
+      {:ok, %Book{}}
+
+      iex> delete_book(book)
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def delete_book(%Book{} = book) do
+    Repo.delete(book)
+  end
+
+  @doc """
+  Returns an `%Ecto.Changeset{}` for tracking book changes.
+
+  ## Examples
+
+      iex> change_book(book)
+      %Ecto.Changeset{data: %Book{}}
+
+  """
+  def change_book(%Book{} = book, attrs \\ %{}) do
+    Book.changeset(book, attrs)
+  end
+end

lib/book_search/books/book.ex

@@ -0,0 +1,22 @@
+defmodule BookSearch.Books.Book do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  schema "books" do
+    field :title, :string
+    belongs_to :author, BookSearch.Authors.Author
+    has_one :book_content, BookSearch.Books.BookContent
+    many_to_many :tags, BookSearch.Tags.Tag, join_through: "book_tags", on_replace: :delete
+
+    timestamps()
+  end
+
+  @doc false
+  def changeset(book, attrs, tags \\ []) do
+    book
+    |> cast(attrs, [:title, :author_id])
+    |> validate_required([:title])
+    |> put_assoc(:tags, tags)
+    |> cast_assoc(:book_content)
+  end
+end

lib/book_search/books/book_content.ex

@@ -0,0 +1,18 @@
+defmodule BookSearch.Books.BookContent do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  schema "book_content" do
+    field :full_text, :string
+    belongs_to :book, BookSearch.Books.Book
+
+    timestamps()
+  end
+
+  @doc false
+  def changeset(book_content, attrs) do
+    book_content
+    |> cast(attrs, [:full_text])
+    |> validate_required([:full_text])
+  end
+end