Fix default port mapping and indentation

Signed-off-by: Anca Iordache <anca.iordache@docker.com>

react-express-mysql/docker-compose.yaml

@@ -9,7 +9,7 @@ services:
     environment:
       - NODE_ENV=development
     ports:
-      - 8080:80
+      - 80:80
       - 9229:9229
       - 9230:9230
     volumes:
@@ -23,10 +23,8 @@ services:
     depends_on:
       - db
   db:
-    environment:
-      MYSQL_DATABASE: example
-      MYSQL_ROOT_PASSWORD_FILE: /run/secrets/db-password
     image: mysql:8.0.19
+    command: '--default-authentication-plugin=mysql_native_password'
     restart: always
     secrets:
       - db-password
@@ -34,12 +32,15 @@ services:
       - db-data:/var/lib/mysql
     networks:
       - private
+    environment:
+      - MYSQL_DATABASE=example
+      - MYSQL_ROOT_PASSWORD_FILE=/run/secrets/db-password
   frontend:
     build:
       context: frontend
       target: development
     ports:
-      - 9000:3000
+      - 3000:3000
     volumes:
       - ./frontend/src:/code/src
       - /code/node_modules
@@ -48,11 +49,11 @@ services:
     depends_on:
       - backend
 networks:
-  public: {}
-  private: {}
+  public:
+  private:
 volumes:
-  back-notused: {}
-  db-data: {}
+  back-notused:
+  db-data:
 secrets:
   db-password:
     file: db/password.txt