add docker setup

.tool-versions

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+ruby 3.1.1

Dockerfile

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+FROM ruby:3.1.1-alpine
+
+ENV APP_PATH /posterr/
+ENV APP_USER posterr
+ENV APP_USER_HOME /home/posterr
+
+ENV BUNDLE_PATH $APP_USER_HOME
+ENV GEM_HOME $APP_USER_HOME/bundle
+ENV BUNDLE_BIN $GEM_HOME/bin
+
+ENV RAILS_LOG_TO_STDOUT=true
+ENV TZ=America/Sao_Paulo
+
+ENV PATH $PATH:$BUNDLE_BIN
+
+# Puma
+EXPOSE 3000
+
+ARG UID
+RUN : "${UID:?You must provide a UID argument when building this image.}"
+
+RUN adduser -h $APP_USER_HOME -D -u $UID $APP_USER
+
+WORKDIR $APP_PATH
+
+COPY Gemfile* $APP_PATH
+
+# The package shared-mime-info is required in a Rails dependency
+RUN apk update && \
+  apk add --no-cache \
+    git \
+    build-base \
+    postgresql-dev \
+    tzdata \
+    less \
+    shared-mime-info && \
+  bundle config jobs $(nproc --all) && \
+  bundle install && \
+  chown -R $APP_USER:$APP_USER $APP_USER_HOME && \
+  chown -R $APP_USER:$APP_USER $APP_PATH && \
+  rm -r /var/cache/apk/*
+
+COPY --chown=posterr . $APP_PATH
+
+USER $APP_USER

README.md

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 # README
 
+## Setup
+  1. Run setup script (docker) `./scripts/setup`
+  2. Execute seeds rake with `docker-compose run --rm web rails db:seed`
+  3. Start project with `docker-compose up`
+  4. Seed routes documentation `http://localhost:3000/rails/info/routes`
+
 ## Planning
 
 ### Question for the Product Manager

docker-compose.yml

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+version: "3.6"
+
+services:
+  web:
+    image: strider-posterr
+    volumes:
+      - .:/posterr:delegated
+      - gems:/home/posterr:delegated
+    environment:
+      - DATABASE_URL=postgres://postgres:postgres@db:5432
+    depends_on:
+      - db
+
+    container_name: strider-posterr-web
+    command: >
+      sh -c '
+        bundle check || bundle install &&
+        rm -f tmp/pids/server.pid &&
+        rails s -b 0.0.0.0'
+    ports:
+      - "3000:3000"
+
+  db:
+    image: postgres:11-alpine
+    container_name: strider-posterr-db
+    volumes:
+      - pg-data:/var/lib/postgresql/data:delegated
+      - ./scripts:/scripts:delegated
+      - ./tmp:/tmp:delegated
+    ports:
+      - "5435:5432"
+
+  gems:
+    image: busybox:latest
+    container_name: strider-posterr-gems
+    volumes:
+      - /gems
+
+volumes:
+  gems:
+  pg-data:

scripts/setup

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+#!/usr/bin/env bash
+
+set -e
+
+cd $(dirname $(dirname $0))
+
+yellow_text(){
+  echo "`tput setaf 3`$@`tput sgr0`"
+}
+
+green_text(){
+  echo "`tput setaf 2`$@`tput sgr0`"
+}
+
+if [ -f Dockerfile  ]; then
+  docker build --build-arg UID=$UID -t strider-posterr .
+else
+  red_text 'Could not find Dockerfile. Please run this script from the root of the project.'
+  return
+fi
+
+yellow_text 'Preparing the database...'
+docker-compose run --rm web rails db:create db:migrate
+
+green_text 'Everything ready to run!'