Switch to SOLID stack

.github/workflows/ci.yml

@@ -10,22 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
 
-    services:
-      postgres:
-        image: postgres:17-alpine
-        ports: ['5432:5432']
-        env:
-          POSTGRES_PASSWORD: postgres
-
-      redis:
-        image: redis:alpine
-        ports: ['6379:6379']
-
     env:
-      DB_HOST: localhost
-      DB_USER: postgres
-      DB_PASSWORD: postgres
-      REDIS_URL: redis://localhost:6379/0
       RAILS_ENV: test
       CI: true
       RUBY_YJIT_ENABLE: 1
@@ -56,7 +41,7 @@ jobs:
       - name: Check for TypeScript errors
         run: bin/yarn tsc
 
-      - name: Setup PostgreSQL
+      - name: Setup Database
         run: bin/rails db:create
 
       - name: Compile assets

.rubocop.yml

@@ -13,6 +13,9 @@ AllCops:
     - bin/**/*
     - coverage/**/*
     - db/schema.rb
+    - db/cable_schema.rb
+    - db/cache_schema.rb
+    - db/queue_schema.rb
     - db/migrate/**/*
     - log/**/*
     - node_modules/**/*

Brewfile

@@ -1,4 +1,2 @@
 brew 'puma/puma/puma-dev'
-brew 'postgresql@17'
-brew 'redis'
 brew 'overmind'

Gemfile

@@ -20,21 +20,27 @@ gem 'phlex-rails'
 # Heroicons extension for Phlex (https://github.com/nejdetkadir/phlex-heroicons)
 gem 'phlex-heroicons', github: 'nejdetkadir/phlex-heroicons'
 
-# Pg is the Ruby interface to the PostgreSQL RDBMS (https://github.com/ged/ruby-pg)
-gem 'pg', '~> 1.1'
+# Ruby library to interface with the SQLite3 database engine (http://www.sqlite.org). (https://github.com/sparklemotion/sqlite3-ruby)
+gem 'sqlite3', '>= 2.1'
 
-# Puma is a simple, fast, threaded, and highly parallel HTTP 1.1 server for Ruby/Rack applications (https://puma.io)
+# A Ruby/Rack web server built for parallelism. (https://puma.io)
 gem 'puma', '>= 5.0'
 
+# A database backed ActiveSupport::Cache::Store (http://github.com/rails/solid_cache)
+gem 'solid_cache'
+
+# Database-backed Active Job backend. (https://github.com/rails/solid_queue)
+gem 'solid_queue'
+
+# Database-backed Action Cable backend. (https://github.com/rails/solid_cable)
+gem 'solid_cable'
+
 # Boot large ruby/rails apps faster (https://github.com/Shopify/bootsnap)
 gem 'bootsnap', '>= 1.4.4', require: false
 
 # Timezone Data for TZInfo (https://tzinfo.github.io)
 gem 'tzinfo-data', platforms: %i[windows jruby]
 
-# A Ruby client library for Redis (https://github.com/redis/redis-rb)
-gem 'redis', '>= 4.0.1'
-
 # Tame Rails' multi-line logging into a single line per request (https://github.com/roidrage/lograge)
 gem 'lograge'
 
@@ -47,9 +53,6 @@ gem 'rack-canonical-host'
 # Brotli compression for Rack responses (http://github.com/marcotc/rack-brotli/)
 gem 'rack-brotli'
 
-# Simple, efficient background processing for Ruby (https://sidekiq.org)
-gem 'sidekiq'
-
 # Lock staging servers from search engines and prying eyes. (http://lockup.interdiscipline.com)
 gem 'lockup', github: 'interdiscipline/lockup'
 

Gemfile.lock

@@ -125,6 +125,8 @@ GEM
     drb (2.2.1)
     dry-cli (1.2.0)
     erubi (1.13.1)
+    et-orbi (1.2.11)
+      tzinfo
     factory_bot (6.5.0)
       activesupport (>= 5.0.0)
     factory_bot_rails (6.4.4)
@@ -134,6 +136,9 @@ GEM
     ffi (1.17.1-x86_64-linux-gnu)
     ffi (1.17.1-x86_64-linux-musl)
     formatador (1.1.0)
+    fugit (1.11.1)
+      et-orbi (~> 1, >= 1.2.11)
+      raabro (~> 1.4)
     globalid (1.2.1)
       activesupport (>= 6.1)
     guard (2.19.1)
@@ -226,7 +231,6 @@ GEM
     parser (3.3.7.0)
       ast (~> 2.4.1)
       racc
-    pg (1.5.9)
     phlex (1.11.0)
     phlex-rails (1.2.2)
       phlex (>= 1.10, < 2)
@@ -240,6 +244,7 @@ GEM
     public_suffix (6.0.1)
     puma (6.5.0)
       nio4r (~> 2.0)
+    raabro (1.4.0)
     racc (1.8.1)
     rack (3.1.8)
     rack-brotli (2.0.0)
@@ -296,10 +301,6 @@ GEM
     rdoc (6.11.0)
       psych (>= 4.0.0)
     redcarpet (3.6.0)
-    redis (5.3.0)
-      redis-client (>= 0.22.0)
-    redis-client (0.23.2)
-      connection_pool
     regexp_parser (2.10.0)
     reline (0.6.0)
       io-console (~> 0.5)
@@ -361,18 +362,31 @@ GEM
     ruby-progressbar (1.13.0)
     securerandom (0.4.1)
     shellany (0.0.1)
-    sidekiq (7.3.8)
-      base64
-      connection_pool (>= 2.3.0)
-      logger
-      rack (>= 2.2.4)
-      redis-client (>= 0.22.2)
     simplecov (0.22.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
       simplecov_json_formatter (~> 0.1)
     simplecov-html (0.13.1)
     simplecov_json_formatter (0.1.4)
+    solid_cable (3.0.5)
+      actioncable (>= 7.2)
+      activejob (>= 7.2)
+      activerecord (>= 7.2)
+      railties (>= 7.2)
+    solid_cache (1.0.6)
+      activejob (>= 7.2)
+      activerecord (>= 7.2)
+      railties (>= 7.2)
+    solid_queue (1.1.2)
+      activejob (>= 7.1)
+      activerecord (>= 7.1)
+      concurrent-ruby (>= 1.3.1)
+      fugit (~> 1.11.0)
+      railties (>= 7.1)
+      thor (~> 1.3.1)
+    sqlite3 (2.5.0-arm64-darwin)
+    sqlite3 (2.5.0-x86_64-linux-gnu)
+    sqlite3 (2.5.0-x86_64-linux-musl)
     stimulus-rails (1.3.4)
       railties (>= 6.0.0)
     stringio (3.1.2)
@@ -436,15 +450,13 @@ DEPENDENCIES
   lograge
   lookbook
   ostruct
-  pg (~> 1.1)
   phlex-heroicons!
   phlex-rails
   puma (>= 5.0)
   rack-brotli
   rack-canonical-host
   rack-cors
   rails (~> 8.0.0)
-  redis (>= 4.0.1)
   rexml
   rorvswild
   rspec-rails
@@ -455,8 +467,11 @@ DEPENDENCIES
   rubocop-rails
   rubocop-rspec
   rubocop-rspec_rails
-  sidekiq
   simplecov
+  solid_cable
+  solid_cache
+  solid_queue
+  sqlite3 (>= 2.1)
   stimulus-rails
   turbo-rails
   tzinfo-data

README.md

@@ -21,9 +21,8 @@ There are two sister repositories:
 - [Ruby](https://www.ruby-lang.org/de/) 3.4
 - [Ruby on Rails](https://rubyonrails.org/) 8.0
 - [ActionCable](https://guides.rubyonrails.org/action_cable_overview.html) for WebSocket communication
-- [PostgreSQL](https://www.postgresql.org/) for using as SQL database
-- [Sidekiq](https://sidekiq.org/) for background processing
-- [Redis](https://redis.io/) for Caching, ActionCable, and Sidekiq
+- [SQLite](https://www.sqlite.org/) for using as SQL database
+- [SolideQueue](https://github.com/rails/solid_queue) for background processing
 
 ### Frontend
 
@@ -175,7 +174,7 @@ git clone [email protected]:templatus/templatus-hotwire.git
 cd templatus-hotwire
 ```
 
-2. Install PostgreSQL, Redis, and puma-dev (if not already present). On a Mac with HomeBrew, run this to install from the `Brewfile`:
+2. Install puma-dev (if not already present). On a Mac with HomeBrew, run this to install from the `Brewfile`:
 
 ```bash
 brew bundle

app/controllers/cypress/cleanup_controller.rb

@@ -9,9 +9,7 @@ def destroy
       tables.delete 'schema_migrations'
       tables.each do |table|
         sanitized_table = ActiveRecord::Base.connection.quote_table_name(table)
-        ActiveRecord::Base.connection.execute(
-          "TRUNCATE #{sanitized_table} CASCADE",
-        )
+        ActiveRecord::Base.connection.execute("DELETE FROM #{sanitized_table}")
       end
 
       head :ok

app/jobs/application_job.rb

@@ -1,7 +1,7 @@
 class ApplicationJob < ActiveJob::Base
   # Automatically retry jobs that encountered a deadlock
   # retry_on ActiveRecord::Deadlocked
-  #
+
   # Most jobs are safe to ignore if the underlying records are no longer available
   # discard_on ActiveJob::DeserializationError
 end

app/models/click.rb

@@ -2,8 +2,8 @@
 #
 # Table name: clicks
 #
-#  id         :bigint           not null, primary key
-#  ip         :inet             not null
+#  id         :integer          not null, primary key
+#  ip         :string           not null
 #  user_agent :string           not null
 #  created_at :datetime         not null
 #

app/views/components/about_component.rb

@@ -54,26 +54,10 @@ def feature(item)
 
       dd(class: 'mt-2 text-base text-gray-600 ml-9') do
         plain item[:description]
-
-        sidekiq_link if item[:gem] == 'sidekiq'
       end
     end
   end
 
-  def sidekiq_link
-    p(class: 'mt-2 text-xs') do
-      plain ' → '
-
-      a(
-        href: sidekiq_web_path,
-        class: 'font-medium uppercase hover:underline',
-        data: {
-          turbo: false,
-        },
-      ) { 'Admin frontend' }
-    end
-  end
-
   FEATURES = [
     {
       name: 'The backend',
@@ -93,10 +77,10 @@ def sidekiq_link
             'Rails is a web application development framework written in the Ruby programming language. It is designed to make programming web applications easier by making assumptions about what every developer needs to get started.',
         },
         {
-          name: 'PostgreSQL',
-          href: 'https://www.postgresql.org/',
+          name: 'SQLite',
+          href: 'https://www.sqlite.org/',
           description:
-            'PostgreSQL is a powerful, open source object-relational database system with over 30 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.',
+            'SQLite is a C-language library that implements a small, fast, self-contained, high-reliability, full-featured, SQL database engine. SQLite is the most used database engine in the world. ',
         },
         {
           name: 'Puma',
@@ -105,18 +89,6 @@ def sidekiq_link
           description:
             'Puma is a simple, fast, multi-threaded, and highly concurrent HTTP 1.1 server for Ruby/Rack applications.',
         },
-        {
-          name: 'Redis',
-          href: 'https://redis.io/',
-          description:
-            'Redis is an open source, in-memory data structure store, used as a database, cache, and message broker.',
-        },
-        {
-          name: 'Sidekiq',
-          gem: 'sidekiq',
-          href: 'https://sidekiq.org/',
-          description: 'Simple, efficient background processing for Ruby',
-        },
       ],
     },
     {
@@ -251,14 +223,6 @@ def alpine_version
     # :nocov:
   end
 
-  def postgres_version
-    ActiveRecord::Base.connection.select_value('SHOW server_version;')
-  end
-
-  def redis_version
-    Redis.new.info['redis_version']
-  end
-
   def ruby_version
     RUBY_VERSION
   end
@@ -272,12 +236,7 @@ def external_version(name)
       Rails
         .cache
         .fetch('versions', expires_in: 1.hour) do
-          {
-            'Alpine Linux' => alpine_version,
-            'PostgreSQL' => postgres_version,
-            'Redis' => redis_version,
-            'Ruby' => ruby_version,
-          }
+          { 'Alpine Linux' => alpine_version, 'Ruby' => ruby_version }
         end
 
     @external_version[name]

bin/jobs

@@ -0,0 +1,6 @@
+#!/usr/bin/env ruby
+
+require_relative '../config/environment'
+require 'solid_queue/cli'
+
+SolidQueue::Cli.start(ARGV)