Add docker configuration for development

This makes it easier to run the test suite in your local dev environment

Author: etagwerker

Dockerfile

@@ -0,0 +1,16 @@
+FROM ruby:3.3
+
+# Set the working directory in the container
+WORKDIR /app
+
+# Copy the current directory contents into the container at /app
+COPY . /app
+
+# Copy the sample config to the actual config (performed at build time)
+RUN cp spec/support/sample.docker.config.yml spec/support/config.yml
+
+# Install any needed packages specified in Gemfile
+RUN bundle install
+
+# Command to run the application
+CMD ["bash"]

docker-compose.yaml

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+services:
+  ruby:
+    image: ruby:3.3 # Manually change this based on the desired Ruby version
+    working_dir: /app
+    build: .
+    environment:
+      BUNDLE_GEMFILE: gemfiles/rails_7.2.gemfile # Manually change this based on the desired Rails version
+    depends_on:
+      - mysql
+      - postgres
+
+  mysql:
+    image: mysql:8.4
+    environment:
+      MYSQL_ALLOW_EMPTY_PASSWORD: yes
+    ports:
+      - "3306:3306"
+    healthcheck:
+      test: ["CMD", "mysqladmin", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 3
+
+  postgres:
+    image: postgres:16
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      PGUSER: postgres
+    ports:
+      - "5432:5432"
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready"]
+      interval: 10s
+      timeout: 5s
+      retries: 5

spec/support/sample.docker.config.yml

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+mysql2:
+  adapter: mysql2
+  database: database_cleaner_test
+  username: root
+  password:
+  host: mysql
+  port: 3306
+  encoding: utf8
+
+trilogy:
+  adapter: trilogy
+  database: database_cleaner_test
+  username: root
+  password:
+  host: mysql
+  port: 3306
+  encoding: utf8
+
+postgres:
+  adapter: postgresql
+  database: database_cleaner_test
+  username: postgres
+  password: postgres
+  host: postgres
+  encoding: unicode
+  template: template0
+
+sqlite3:
+  adapter: sqlite3
+  database: tmp/database_cleaner_test.sqlite3
+  pool: 5
+  timeout: 5000
+  encoding: utf8