chore: Docker setup for MSSQL

Author: Mattia Roccoberton

Gemfile

@@ -6,8 +6,13 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 gemspec
 
 group :development, :test do
+  if ENV['DB_TEST'] == 'mssql'
+    gem 'activerecord-sqlserver-adapter', '7.0.3.0'
+    gem 'tiny_tds'
+  end
   gem 'mysql2' if ENV['DB_TEST'] == 'mysql'
   gem 'pg' if ['postgres', 'postgresql'].include? ENV['DB_TEST']
+
   gem 'simplecov'
   gem 'simplecov-lcov'
 

extra/Dockerfile_32

@@ -3,7 +3,7 @@ FROM ruby:3.2-slim
 ARG DB_TEST
 
 RUN apt-get update
-RUN apt-get install --no-install-recommends -y build-essential curl file git nano netcat-traditional libmariadb-dev libpq-dev openssl tzdata
+RUN apt-get install --no-install-recommends -y build-essential curl file freetds-dev freetds-bin git nano netcat-traditional libmariadb-dev libpq-dev openssl tzdata
 
 # App setup
 WORKDIR /usr/src/app

extra/docker-compose.yml

@@ -2,6 +2,33 @@
 version: "3.3"
 
 x-defaults:
+  tests_mssql: &tests_mssql
+    environment:
+      CI: 1
+      DB_TEST: mssql
+      DB_PORT: 1433
+      MSSQL_DB_HOST: mssql
+      MSSQL_DB_NAME: test_db
+      MSSQL_DB_USERNAME: sa
+      MSSQL_DB_PASSWORD: Pa%%w0rd
+      RAILS: '7.0'
+      RAILS_ENV: test
+    command:
+      - sh
+      - -c
+      - |
+        while ! nc -z $${DB_TEST} $${DB_PORT} </dev/null
+        do echo "Waiting for DB ($${DB_TEST})..." && sleep 5; done
+        echo "DB is now available!"
+        cd spec/dummy70
+        bin/setup
+        cd ../..
+        bin/rspec
+    volumes:
+      - ..:/usr/src/app:delegated
+    depends_on:
+      - mssql
+
   tests_mysql: &tests_mysql
     environment:
       CI: 1
@@ -57,17 +84,24 @@ x-defaults:
       - postgres
 
 services:
-  postgres:
-    image: postgres
+  mssql:
+    image: mcr.microsoft.com/mssql/server:2022-latest
+    platform: linux/amd64
     environment:
-      POSTGRES_PASSWORD: password
+      ACCEPT_EULA: 'Y'
+      SA_PASSWORD: Pa%%w0rd
 
   mysql:
     image: mysql
     platform: linux/amd64
     environment:
       MYSQL_ROOT_PASSWORD: password
 
+  postgres:
+    image: postgres
+    environment:
+      POSTGRES_PASSWORD: password
+
   tests_30_mysql:
     <<: *tests_mysql
     build:
@@ -84,6 +118,14 @@ services:
       args:
         DB_TEST: postgres
 
+  tests_32_mssql:
+    <<: *tests_mssql
+    build:
+      context: ..
+      dockerfile: extra/Dockerfile_32
+      args:
+        DB_TEST: mssql
+
   tests_32_mysql:
     <<: *tests_mysql
     build:

spec/dummy70/config/database.yml

@@ -1,5 +1,15 @@
 <% case ENV['DB_TEST']
-when 'mysql' %>
+when 'mssql' %>
+test: &test
+  adapter: sqlserver
+  host: <%= ENV.fetch('MSSQL_DB_HOST') { '127.0.0.1' } %>
+  # port: <%= ENV.fetch('MSSQL_DB_PORT') { 1433 } %>
+  database: <%= ENV.fetch('MSSQL_DB_NAME') { ver = ENV.fetch('RAILS', '').tr('.', ''); "active_storage_db_#{ver}-test" } %>
+  username: <%= ENV.fetch('MSSQL_DB_USERNAME') { '' } %>
+  password: <%= ENV.fetch('MSSQL_DB_PASSWORD') { '' } %>
+  encoding: utf8
+  pool: <%= ENV.fetch('RAILS_MAX_THREADS') { 5 } %>
+<% when 'mysql' %>
 test: &test
   adapter: mysql2
   host: <%= ENV.fetch('MYSQL_DB_HOST') { '127.0.0.1' } %>