I am trying to create NestJS micro-service and accessing it with a client gateway using docker container. When I ran it locally it works fine but when I deploy it on docker it gives me below error. I have two different docker files one for gateway and one for microserice.
[Nest] 1 - 03/06/2021, 10:11:19 PM [ExceptionsHandler] connect ECONNREFUSED 127.0.0.1:4000 +19833ms
Error: connect ECONNREFUSED 127.0.0.1:4000
at TCPConnectWrap.afterConnect [as oncomplet]
Dockerfile.gateway
FROM node:12.18-alpine
RUN mkdir -p /custom-root
WORKDIR /custom-root
COPY ./package.json .
COPY ./nest-cli.json .
COPY ./tsconfig.json .
COPY ./tsconfig.build.json .
COPY ./apps/gateway-client/. ./apps/gateway-client/.
RUN npm install -g @nestjs/cli
RUN npm install
RUN npm run build gateway-client
EXPOSE 3001
CMD [ "node", "./dist/apps/gateway-client/main.js" ]
Service docker file
FROM node:12.18-alpine
RUN mkdir -p /custom-root
WORKDIR /custom-root
COPY ./package.json .
COPY ./nest-cli.json .
COPY ./tsconfig.json .
COPY ./tsconfig.build.json .
COPY ./apps/service-customer/. ./apps/service-customer/.
RUN npm install -g @nestjs/cli
RUN npm install
RUN npm run build service-customer
EXPOSE 4000
CMD [ "node", "./dist/apps/service-customer/main.js" ]
Here is the Service file TCP connection
async function bootstrap() {
const { SERVICE_CUSTOMER_PORT, SERVICE_CUSTOMER_HOST } = process.env;
const port = SERVICE_CUSTOMER_PORT || 4000;
const host = SERVICE_CUSTOMER_HOST || '0.0.0.0';
const app = await NestFactory.createMicroservice(CustomerModule, {
transport: Transport.TCP,
options: {
host,
port
},
});
app.listen(() => logger.log(`Customer Microservice is listening at ${port} host -> ${host}`));
}
bootstrap();
Here is the Code for gateway
async function bootstrap() {
const app = await NestFactory.create(AppModule);
const { GATEWAY_PORT } = process.env;
const port = GATEWAY_PORT || 3001
await app.listen(port);
}
bootstrap();
Please help
