Convert to mysql

.env.example

@@ -1,3 +1,3 @@
-PGHOST=db
-PGUSER=postgres
-PGPASSWORD=changeme
+HOST=db
+USER=mysql
+PASSWORD=change_me_right_now

.github/workflows/ruby.yml

@@ -32,24 +32,24 @@ jobs:
 
     env:
       RAILS_ENV: test
-      DATABASE_URL: postgres://postgres:postgres@localhost:5432
       DISABLE_BOOTSNAP: true
       DISABLE_BOOTSNAP_LOAD_PATH_CACHE: true
 
     services:
-      postgres:
-        image: postgres:12
-        env:
-          POSTGRES_PASSWORD: postgres
-        options: >-
-          --health-cmd pg_isready
-          --health-interval 10s
-          --health-timeout 5s
-          --health-retries 5
-        ports:
-          - 5432:5432
+      mysql:
+          image: mysql
+          #
+          env:
+            MYSQL_ROOT_PASSWORD: change_me_right_now
+            MYSQL_ALLOW_EMPTY_PASSWORD: true
+            MYSQL_ROOT_HOST: 172.18.0.1
+            MYSQL_LOG_CONSOLE: true
+            MYSQL_PASSWORD: change_me_right_now
+          ports:
+            - 8888:3306
+          options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3
 
-    steps:
+    steps:     
       - uses: actions/checkout@v3
 
       - name: Set up Ruby
@@ -59,6 +59,11 @@ jobs:
 
       - name: Create database
         run: |
+          sudo /etc/init.d/mysql start  --skip-grant-tables 
+          mysql -h 127.0.0.1 --port 8888 -pchange_me_right_now -uroot -e "SHOW DATABASES"
+          echo "************"
+          printenv
+          echo "************" 
           bundle exec rails db:create
           bundle exec rails db:schema:load
 

Dockerfile

@@ -5,10 +5,11 @@ RUN apt-get update -qq && apt-get install -yq --no-install-recommends \
     gnupg2 \
     less \
     git \
-    libpq-dev \
-    postgresql-client \
+    telnet \
   && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
+RUN apt-get update -qq && apt-get install -y default-libmysqlclient-dev
+
 ENV LANG=C.UTF-8 \
   BUNDLE_JOBS=4 \
   BUNDLE_RETRY=3

Gemfile

@@ -11,8 +11,8 @@ gem "rails", "~> 7.0.3"
 # The original asset pipeline for Rails [https://github.com/rails/sprockets-rails]
 gem "sprockets-rails"
 
-# Use postgresql as the database for Active Record
-gem "pg", "~> 1.4"
+# Use mysql as the database for Active Record
+gem "mysql2", "~> 0.5"
 
 # Use the Puma web server [https://github.com/puma/puma]
 gem "puma", "~> 5.6"

Gemfile.lock

@@ -124,6 +124,7 @@ GEM
     mini_mime (1.1.2)
     minitest (5.16.1)
     msgpack (1.5.2)
+    mysql2 (0.5.4)
     net-imap (0.2.3)
       digest
       net-protocol
@@ -148,7 +149,6 @@ GEM
     parallel (1.22.1)
     parser (3.1.2.0)
       ast (~> 2.4.1)
-    pg (1.4.1)
     public_suffix (4.0.7)
     puma (5.6.4)
       nio4r (~> 2.0)
@@ -285,7 +285,7 @@ DEPENDENCIES
   image_processing (~> 1.12)
   importmap-rails
   jbuilder
-  pg (~> 1.4)
+  mysql2 (~> 0.5)
   puma (~> 5.6)
   rack-mini-profiler
   rails (~> 7.0.3)

README.md

@@ -1,80 +1,52 @@
 ![Ruby](https://github.com/ryanwi/rails7-on-docker/workflows/Ruby/badge.svg)
 
-# Rails 7 on Docker demo application
+# Rails 7 on Docker ** MYSQL ** demo application
 
-This app demonstrates Rails 7 with PostgreSQL, import maps, turbo, stimulus and hotwire, all running in Docker.
-
-**NOTE:** [There is also an example Rails 6 application working in Docker with Webpacker](https://github.com/ryanwi/rails-on-docker)
+This app demonstrates Rails 7 with Mysql8, import maps, turbo, stimulus and hotwire, all running in Docker.
 
 ## Features
 
+* Mysql 8
 * Rails 7
 * Ruby 3
 * Dockerfile and Docker Compose configuration
-* PostgreSQL database
+* MYSQL database
 * Redis
 * GitHub Actions for 
   * tests
   * Rubocop for linting
   * Security checks with [Brakeman](https://github.com/presidentbeef/brakeman) and [bundler-audit](https://github.com/rubysec/bundler-audit)
 * Dependabot for automated updates
 
-## Initial setup
-```
-cp .env.example .env
-docker compose build
-docker compose run --rm web bin/rails db:setup
-```
-
 ## Running the Rails app
 ```
-docker compose up
+sh start.sh 
 ```
 
 ## Running the Rails console
 When the app is already running with `docker-compose` up, attach to the container:
 ```
-docker compose exec web bin/rails c
+docker-compose exec web bin/rails c
 ```
 
 When no container running yet, start up a new one:
 ```
-docker compose run --rm web bin/rails c
+docker-compose run --rm web bin/rails c
 ```
 
 ## Running tests
 ```
-docker compose run --rm web bin/rspec
+docker-compose run --rm web bin/rspec
 ```
 
 ## Updating gems
 ```
-docker compose run --rm web bundle update
-docker compose up --build
-```
-
-## Production build
-
-```
-docker build -f production.Dockerfile .
+docker-compose run --rm web bundle update
+docker-compose up --build
 ```
 
 ## Credits/References
+Thanks!! to ryanwi for the postgres version.  The conversion to MYSQL8 was pretty easy!!
 
-### Rails with Docker
-* [Quickstart: Compose and Rails](https://docs.docker.com/compose/rails/)
-* [Docker for Rails Developers
-Build, Ship, and Run Your Applications Everywhere](https://pragprog.com/titles/ridocker/docker-for-rails-developers/)
-* [Ruby on Whales:
-Dockerizing Ruby and Rails development](https://evilmartians.com/chronicles/ruby-on-whales-docker-for-ruby-rails-development)
-
-### Rails 7 with importmaps 
-
-* [Alpha preview: Modern JavaScript in Rails 7 without Webpack](https://www.youtube.com/watch?v=PtxZvFnL2i0)
-
-### Rails 7 with hotwire
+https://github.com/ryanwi/rails7-on-docker
 
-* [Stimulus 3 + Turbo 7 = Hotwire 1.0](https://world.hey.com/dhh/stimulus-3-turbo-7-hotwire-1-0-9d507133)
-* [Turbo 7](https://world.hey.com/hotwired/turbo-7-0dd7a27f)
-* [Rails 7 will have three great answers to JavaScript in 2021+](https://world.hey.com/dhh/rails-7-will-have-three-great-answers-to-javascript-in-2021-8d68191b)
-* [Hotwire Turbo Replacing Rails UJS](https://www.driftingruby.com/episodes/hotwire-turbo-replacing-rails-ujs)

clean.sh

@@ -0,0 +1 @@
+docker container stop $(docker container ls -aq) && docker system prune -af --volumes

config/database.yml

@@ -1,86 +1,29 @@
-# PostgreSQL. Versions 9.3 and up are supported.
-#
-# Install the pg driver:
-#   gem install pg
-# On macOS with Homebrew:
-#   gem install pg -- --with-pg-config=/usr/local/bin/pg_config
-# On macOS with MacPorts:
-#   gem install pg -- --with-pg-config=/opt/local/lib/postgresql84/bin/pg_config
-# On Windows:
-#   gem install pg
-#       Choose the win32 build.
-#       Install PostgreSQL and put its /bin directory on your path.
-#
-# Configure Using Gemfile
-# gem "pg"
-#
 default: &default
-  adapter: postgresql
-  encoding: unicode
+  adapter: mysql2 
   # For details on connection pooling, see Rails configuration guide
   # https://guides.rubyonrails.org/configuring.html#database-pooling
   pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
 
 development:
   <<: *default
   database: railsondocker_development
-
-  # The specified database role being used to connect to postgres.
-  # To create additional roles in postgres see `$ createuser --help`.
-  # When left blank, postgres will use the default role. This is
-  # the same name as the operating system user running Rails.
-  #username: railsondocker
-
-  # The password associated with the postgres role (username).
-  #password:
-
-  # Connect on a TCP socket. Omitted by default since the client uses a
-  # domain socket that doesn't need configuration. Windows does not have
-  # domain sockets, so uncomment these lines.
-  #host: localhost
-
-  # The TCP port the server listens on. Defaults to 5432.
-  # If your server runs on a different port number, change accordingly.
-  #port: 5432
-
-  # Schema search path. The server defaults to $user,public
-  #schema_search_path: myapp,sharedapp,public
-
-  # Minimum log levels, in increasing order:
-  #   debug5, debug4, debug3, debug2, debug1,
-  #   log, notice, warning, error, fatal, and panic
-  # Defaults to warning.
-  #min_messages: notice
+  username: railsondocker
+  password: change_me_right_now
+  host: rails7-on-docker-mysql-db-1
 
 # Warning: The database defined as "test" will be erased and
 # re-generated from your development database when you run "rake".
 # Do not set this db to the same as development or production.
 test:
   <<: *default
   database: railsondocker_test
+  username: root
+  password: change_me_right_now
+  host: 127.0.0.1 
+  port: 8888
 
-# As with config/credentials.yml, you never want to store sensitive information,
-# like your database password, in your source code. If your source code is
-# ever seen by anyone, they now have access to your database.
-#
-# Instead, provide the password or a full connection URL as an environment
-# variable when you boot the app. For example:
-#
-#   DATABASE_URL="postgres://myuser:mypass@localhost/somedatabase"
-#
-# If the connection URL is provided in the special DATABASE_URL environment
-# variable, Rails will automatically merge its configuration values on top of
-# the values provided in this file. Alternatively, you can specify a connection
-# URL environment variable explicitly:
-#
-#   production:
-#     url: <%= ENV["MY_APP_DATABASE_URL"] %>
-#
-# Read https://guides.rubyonrails.org/configuring.html#configuring-a-database
-# for a full overview on how database connection configuration can be specified.
-#
 production:
   <<: *default
   database: railsondocker_production
   username: railsondocker
-  password: <%= ENV["RAILSONDOCKER_DATABASE_PASSWORD"] %>
+  password: change_me_right_now

db/schema.rb

@@ -10,61 +10,57 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2021_12_16_185503) do
-
-  # These are extensions that must be enabled in order to support this database
-  enable_extension "plpgsql"
-
-  create_table "action_text_rich_texts", force: :cascade do |t|
+ActiveRecord::Schema[7.0].define(version: 2021_12_16_185503) do
+  create_table "action_text_rich_texts", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
     t.string "name", null: false
-    t.text "body"
+    t.text "body", size: :long
     t.string "record_type", null: false
     t.bigint "record_id", null: false
-    t.datetime "created_at", precision: 6, null: false
-    t.datetime "updated_at", precision: 6, null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
     t.index ["record_type", "record_id", "name"], name: "index_action_text_rich_texts_uniqueness", unique: true
   end
 
-  create_table "active_storage_attachments", force: :cascade do |t|
+  create_table "active_storage_attachments", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
     t.string "name", null: false
     t.string "record_type", null: false
     t.bigint "record_id", null: false
     t.bigint "blob_id", null: false
-    t.datetime "created_at", precision: 6, null: false
+    t.datetime "created_at", null: false
     t.index ["blob_id"], name: "index_active_storage_attachments_on_blob_id"
     t.index ["record_type", "record_id", "name", "blob_id"], name: "index_active_storage_attachments_uniqueness", unique: true
   end
 
-  create_table "active_storage_blobs", force: :cascade do |t|
+  create_table "active_storage_blobs", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
     t.string "key", null: false
     t.string "filename", null: false
     t.string "content_type"
     t.text "metadata"
     t.string "service_name", null: false
     t.bigint "byte_size", null: false
     t.string "checksum"
-    t.datetime "created_at", precision: 6, null: false
+    t.datetime "created_at", null: false
     t.index ["key"], name: "index_active_storage_blobs_on_key", unique: true
   end
 
-  create_table "active_storage_variant_records", force: :cascade do |t|
+  create_table "active_storage_variant_records", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
     t.bigint "blob_id", null: false
     t.string "variation_digest", null: false
     t.index ["blob_id", "variation_digest"], name: "index_active_storage_variant_records_uniqueness", unique: true
   end
 
-  create_table "articles", force: :cascade do |t|
+  create_table "articles", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
     t.string "title"
     t.text "content"
-    t.datetime "created_at", precision: 6, null: false
-    t.datetime "updated_at", precision: 6, null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
   end
 
-  create_table "comments", force: :cascade do |t|
+  create_table "comments", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
     t.bigint "article_id", null: false
     t.text "content"
-    t.datetime "created_at", precision: 6, null: false
-    t.datetime "updated_at", precision: 6, null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
     t.index ["article_id"], name: "index_comments_on_article_id"
   end