Nest Microservices with RabbitMQ (Basic Version)

Fully managed microservices starter using NestJS, Kong API gateway, RabbitMQ, Redis Queues, Firebase Cloud Notifications.

Dependencies & Services

• RabbitMQ - https://www.rabbitmq.com/
• Redis - https://redis.io/
• Grafana - https://grafana.com/
• MognoDB - https://www.mongodb.com/
• PostgreSQL - https://www.postgresql.org/
• Kong - https://konghq.com/
• Loki - https://grafana.com/oss/loki/
• Fluent-Bit - https://fluentbit.io/

Get started

• use git submodule update --init --recursive command to update/fetch submodules.
• AUTO RELOAD is enabled for docker-compose on file changes using docker volumes. so, If you do any kind of changes in local it will automatically reflect to docker containers.
• Services are included with type-safe interfaces worker, queues(Redis), log drivers.
• To explore APIs collection here is the link of postman collection

Setting up an environment

• Core dependencies such as RabbitMQ, Postgres database, Redis connection, MongoDB services are required to start all services together.
• You can use docker-compose to setting up all Core services Or you can install it in your own system one by one.
• Use example.env as reference.
• kong.yml file will be used for routing of services. after creating new service, define any new services in kong.yml first.
• The development server will start on port 8080. so, base url for server would be http://localhost:8080. you can reconfigure this prefix path in kong.yml.

Setup Grafana Dashboard

To see the logs on Grafana dashboard, you can follow YouTube video or below steps.

1. Open the browser and go to http://localhost:3000, use default values admin and admin for username and password.
2. Now, go to http://localhost:3000/datasources and select Loki from Logging and document databases section.
3. Enter http://loki:3100 in URL under HTTP section. We can do this because we are running Loki and Grafana in the same network.
4. loki else you have to enter host IP address and port here, click on Save and Test button from the bottom of the page.
5. Now, go to 3rd tab Explore from the left sidebar or http://localhost:3000/explore

Installation

Install dependencies for root.

npm install

Install service deps

npm run service-install

Build

Build services

npm run build

Run

Start services in development mode

npm start

start services in production mode

npm run prod

Run docker-compose file with build

Build docker-compose images

docker-compose up --build

Clean build folders

Clean build folders in services

npm run clean

Deployment

Deploy services to dockerhub.

sh deploy.sh

Notes:

• Also use this script to deploy services to ECR. Do changes in deploy.sh script accordingly.
• Use .prod.env file for deployment of the services.
• Deployment can be done in two ways
  • Docker compose context method (Cloud Formation). follow this (Blog)[https://www.docker.com/blog/docker-compose-from-local-to-amazon-ecs/]
  • Use ECS CLI method. follow this (Blog)[https://docs.aws.amazon.com/AmazonECS/latest/developerguide/ecs-cli-tutorial-fargate.html]

Docker Notes:

• Use hostname of service to connect service internally in local docker environment.
• for rebuild all services use command docker-compose up --build.
• Use docker-compose.prod.yml for deployment.

Blogs and References:

• https://www.infracloud.io/blogs/logging-in-kubernetes-efk-vs-plg-stack/
• https://faun.pub/setting-up-centralized-logging-environment-using-efk-stack-with-docker-compose-c96bb3bebf7