docker, docker-compose, env example

.env_example

@@ -1,15 +1,14 @@
-#Contraseñas Gmail
+# Gmail
 USER_GMAIL=
 PASS_GMAIL=
 
-
 # MariaDB database settings
 db_type=mysql
-db_host=172.17.0.2
-db_username=root
-db_database=ApiCorreos
-db_password=mypass
+db_host=mariadb         # <-- uso del nombre del servicio, NO IP
 db_port=3306
+db_username=root        # <-- te conectarás con root
+db_password=mypass      # <-- la misma que MARIADB_ROOT_PASSWORD
+db_database=ApiCorreos
 
-#Puero aplicación
-PORT=3000
+# Puerto de la aplicación
+PORT=4100

Dockerfile

@@ -0,0 +1,23 @@
+# Etapa de construcción
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+
+COPY package*.json ./
+RUN npm install
+
+COPY . .
+RUN npm run build
+
+# Etapa de producción
+FROM node:20-alpine AS production
+
+WORKDIR /app
+
+COPY --from=builder /app/node_modules ./node_modules
+COPY --from=builder /app/dist ./dist
+COPY --from=builder /app/package*.json ./
+
+EXPOSE 4100
+
+CMD ["node", "dist/main"]

docker-compose.yml

@@ -0,0 +1,28 @@
+version: '3.8'
+
+services:
+  mariadb:
+    image: mariadb:latest
+    container_name: mariadb-service
+    ports:
+      - "4101:3306"
+    environment:
+      MARIADB_ROOT_PASSWORD: mypass
+      MARIADB_DATABASE: ApiCorreos
+    volumes:
+      - mariadb_data:/var/lib/mysql
+  
+  api:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: nestjs-api
+    env_file:
+      - .env
+    ports:
+      - "4100:4100"
+    depends_on:
+      - mariadb
+
+volumes:
+  mariadb_data:

src/main.ts

@@ -18,5 +18,7 @@ async function bootstrap() {
   SwaggerModule.setup('documentation', app, document);
   
   await app.listen(process.env.PORT ?? 3000);
+
+  console.log(`Aplicación corriendo en: http://localhost:${process.env.PORT ?? 3000}`);
 }
 bootstrap();