Update docker-compose to run seeder

Dockerfile

@@ -32,14 +32,8 @@ RUN yarn install --check-files
 # Precompile assets with esbuild and TailwindCSS
 RUN bundle exec rake assets:precompile
 
-# Run database migrations
-# RUN rails db:create db:migrate
-
-# Run database migrations
-# RUN bundle exec rake db:migrate
-
 # Precompile assets with esbuild and TailwindCSS
 RUN yarn build
 
-# Start the Rails server
-CMD ["rails", "server", "-b", "0.0.0.0"]
+# Change permissions of start.sh script to make it executable
+RUN chmod +x ./bin/docker-entrypoint

README.md

@@ -3,5 +3,12 @@
 This is the code used for [https://rubyandrails.info](https://rubyandrails.info) website.
 
 
-# Local Deployment with Docker (Tested on Linux Ubuntu 22.04)
-`docker-compose up --build`
+### Local Deployment with Docker (Tested on Linux Ubuntu 22.04)
+#### Start dev environment
+`docker-compose up -d --build`
+
+#### Allow to drop && seed database when initializing the dev environment
+export $RECREATE_DB=true
+
+#### Access the shell in the app container
+`docker-compose run --rm --entrypoint sh app`

bin/docker-entrypoint

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# Remove a potentially pre-existing server.pid for Rails.
+rm -f /app/tmp/pids/server.pid
+
+# Check if RECREATE_DB is set to true and RAILS_ENV is development or test
+echo "ENV RECREATE_DB: ${RECREATE_DB}"
+echo "RAILS_ENV ${RAILS_ENV}"
+
+if test "${RECREATE_DB}" = "true" && ( test "${RAILS_ENV}" = "development" || test "${RAILS_ENV}" = "test" ); then
+  echo "Dropping && preparing DB"
+  bundle exec rake db:drop
+  bundle exec rake db:prepare
+else
+    echo "Preparing DB"
+    bundle exec rake db:prepare
+fi
+
+# Start the Rails server
+bundle exec rails server -b 0.0.0.0

db/seeds.rb

@@ -10,15 +10,19 @@
 require 'faker'
 
 
-20.times do |tag|
-  Tag.create(title: Faker::Lorem.word)
+if Tag.none?
+  20.times do |tag|
+    Tag.create(title: Faker::Lorem.word)
+  end
 end
 
-100.times do |book|
-  Book.create!(title: Faker::Book.title[0..40], 
-               subtitle: Faker::Book.title[0..20], 
-               content: Faker::Lorem::paragraph, 
-               cover: "rails-novice-to-ninja.jpg", 
-               year: Faker::Number.between(from: 2000, to: 2022),
-               tag_ids: [] )
+if Book.none?
+  100.times do |book|
+    Book.create!(title: Faker::Book.title[0..40], 
+                subtitle: Faker::Book.title[0..20], 
+                content: Faker::Lorem::paragraph, 
+                cover: "rails-novice-to-ninja", 
+                year: Faker::Number.between(from: 2000, to: 2022),
+                tag_ids: [] )
+  end
 end

docker-compose.yml

@@ -20,11 +20,13 @@ services:
       - "3000:3000"
     environment:
       DATABASE_URL: postgres://postgres:password@db:5432/rubyandrails_info_development
+      RAILS_ENV: development
+      RECREATE_DB: ${RECREATE_DB}
     volumes:
       - .:/app
       - node_modules:/app/node_modules
       - bundle:/usr/local/bundle
-    command: ["rails", "server", "-b", "0.0.0.0"]
+    command: ["sh", "./bin/docker-entrypoint"]
 
 volumes:
   db_data: