Add collation config to db url

Author: johnpaulashenfelter

docker-compose.yml

@@ -7,6 +7,7 @@ services:
       - 3306
     volumes:
       - mysql-data:/var/lib/mysql
+      - ./docker/mysql/charset.cnf:/etc/mysql/conf.d/charset.cnf:ro
       - ./db/init:/docker-entrypoint-initdb.d
     environment:
       MYSQL_ALLOW_EMPTY_PASSWORD: 1
@@ -31,7 +32,7 @@ services:
       # If you prefer traditional keys, set DB_* in .env and configure database.yml accordingly.
       RAILS_ENV: development
       RAILS_LOG_TO_STDOUT: "true"
-      DATABASE_URL: trilogy://root@database:3306/
+      DATABASE_URL: trilogy://root@database:3306/?encoding=utf8mb4&collation=utf8mb4_unicode_ci&variables[collation_connection]=utf8mb4_unicode_ci
 
     ports:
       - 3000:3000

docker/mysql/charset.cnf

@@ -0,0 +1,3 @@
+[mysqld]
+character-set-server = utf8mb4
+collation-server     = utf8mb4_unicode_ci