Remove Redis from the app

- removed from docker
- removed from .env files
- removed from Gemfile
- removed from Github CI config
- removed from README

It was no longer needed and it did introduce addtional burden (recent heroku changes broke the app). Once we find a good need for Redis again, we will reintroduce it.

.github/workflows/rails_application.yml

@@ -10,7 +10,6 @@ jobs:
       fail-fast: false
     env:
       WORKING_DIRECTORY: rails_application
-      REDIS_TLS_URL: redis://localhost:6379/0
     services:
       postgres_11:
         image: postgres:11
@@ -20,10 +19,6 @@ jobs:
         ports:
           - 5432:5432
         options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
-      redis:
-        image: redis
-        ports: [ "6379:6379" ]
-        options: --entrypoint redis-server
     steps:
       - uses: actions/checkout@v3
       - uses: ruby/setup-ruby@v1
@@ -57,7 +52,6 @@ jobs:
     strategy:
       fail-fast: false
     env:
-      REDIS_TLS_URL: redis://localhost:6379/0
       WORKING_DIRECTORY: rails_application
     services:
       postgres_11:
@@ -68,10 +62,6 @@ jobs:
         ports:
           - 5432:5432
         options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
-      redis:
-        image: redis
-        ports: [ "6379:6379" ]
-        options: --entrypoint redis-server
     steps:
       - uses: actions/checkout@v3
       - uses: ruby/setup-ruby@v1

rails_application/.env.development

@@ -1,2 +1 @@
-REDIS_URL=redis://localhost:6379/0
 DATABASE_URL=postgres://postgres:secret@localhost/cqrs-es-sample-with-res_development

rails_application/.env.test

@@ -1,2 +1 @@
-REDIS_URL=redis://localhost:6379/0
 DATABASE_URL=postgres://postgres:secret@localhost/cqrs-es-sample-with-res_test

rails_application/Gemfile

@@ -16,7 +16,6 @@ gem "stimulus-rails"
 gem "importmap-rails", "~> 1.1"
 gem "rails_event_store",  ">= 2.15.0", "< 3.0"
 gem 'arbre'
-gem 'redis', '~> 5.0'
 
 group :development do
   gem "listen", "~> 3.3"

rails_application/Gemfile.lock

@@ -263,10 +263,6 @@ GEM
       ffi (~> 1.0)
     rdoc (6.7.0)
       psych (>= 4.0.0)
-    redis (5.3.0)
-      redis-client (>= 0.22.0)
-    redis-client (0.22.2)
-      connection_pool
     regexp_parser (2.9.2)
     reline (0.5.9)
       io-console (~> 0.5)
@@ -346,7 +342,6 @@ DEPENDENCIES
   puma (~> 5.6)
   rails (= 7.2.0)
   rails_event_store (>= 2.15.0, < 3.0)
-  redis (~> 5.0)
   skylight
   sprockets-rails
   stimulus-rails

rails_application/README.md

@@ -4,35 +4,33 @@
 
 ## Setup
 
-### Postgresql and Redis
+### Postgresql
 
 #### Docker
 
-If you would like to use Docker image with PostgreSQL and Redis provided by us,
+If you would like to use Docker image with PostgreSQL provided by us,
 run `docker-compose up -d`. You're done for this step.
 
 #### Installed in the system
 
-If you have PostgreSQL or Redis installed directly in your system and prefer
-to use them, create
+If you have PostgreSQL installed directly in your system and prefer
+to use it, create
 
 - `.env.development.local`
   containing:
 
   ```
   DATABASE_URL=postgresql:///ecommerce_development
-  REDIS_URL=redis://localhost:6379/1
   ```
 
 * `.env.test.local` containing:
 
   ```
   DATABASE_URL=postgresql:///ecommerce_test
-  REDIS_URL=redis://localhost:6379/1
   ```
 
 It should would work for most of the cases. If you have more sophisticated setup,
-you need to update `DATABASE_URL` and `REDIS_URL` accordingly.
+you need to update `DATABASE_URL`.
 
 ### Kickstart
 

rails_application/docker-compose.yml

@@ -9,11 +9,4 @@ services:
       - POSTGRES_DB=cqrs-es-sample-with-res
       - POSTGRES_PASSWORD=secret
     ports:
-      - "5432:5432"
-  redis:
-    image: 'bitnami/redis:latest'
-    restart: always
-    environment:
-      - ALLOW_EMPTY_PASSWORD=yes
-    ports:
-      - "6379:6379"
+      - "5432:5432"