adicionando o docker-compose

.env

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+TAG=latest

docker-compose.yaml

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+version: '3.8'
+
+volumes:
+  mongo_vol:
+
+networks:
+  produto_net:
+    driver: bridge
+
+services:
+  api:
+    env_file: .env
+    image: rafaelroxen/api-produto:${TAG}
+    ports:
+      - 8080:8080
+    networks:
+      - produto_net
+    environment:
+      MONGODB_URI: mongodb://mongouser:mongopwd@mongodb:27017/admin
+    depends_on:
+      - mongodb
+
+
+  mongodb:
+    image: mongo:4.4.3
+    ports:
+      - 27017:27017
+    networks:
+      - produto_net
+    volumes:
+      - mongo_vol:/data/db
+    environment:
+      MONGO_INITDB_ROOT_USERNAME: mongouser
+      MONGO_INITDB_ROOT_PASSWORD: mongopwd
+

src/.dockerignore

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+node_modules/

src/Dockerfile

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+FROM node:14.15.4
+
+WORKDIR /app
+
+COPY package*.json ./
+RUN npm install
+COPY . .
+
+EXPOSE 8080
+
+CMD ["node", "app.js"]