![]() ![]() ![]() docker-compose.yaml version: "3.9" services: postgres: image: postgres:13-alpine restart: always env_file:. Now inside it, create a file called docker-compose.yaml and add the following: # path. So, create a folder for our application called postgres-mongodb-nestjs. “A progressive Node.js framework for building efficient, reliable, and scalable server-side applications.” - Creating our Docker-compose fileīecause Docker technology is great, we don’t need to install PostgreSQL or MongoDB on our local machine. For this reason, we will be using NestJs, which is: To make calls to our database services, we need a server. Using the optimal database for each unique use case is made possible by running numerous databases concurrently. Selecting a database for a task is crucial since different databases have different strengths and disadvantages. One benefit is that it increases performance and scalability by spreading the workload across several databases. Running many databases at the same time has many advantages. Importance of Running Multiple Databases Concurrently Moreover, MongoDB offers indexing, ad-hoc searches, aggregate pip, etc. It can handle large amounts of unstructured or semi-structured data because it is scalable and adaptable. It is perfect for use cases requiring transactional consistency and uses SQL as its query language.Ĭontrarily, MongoDB is a well-liked NoSQL database management system that uses a document-based data model. PostgreSQL is a database management system that supports many data types, including arrays, JSON, and XML. ![]() It is a freely accessible RDBMS, and it is very well-liked because of its dependability, extensibility, and scalability. PostgreSQL is a relational database management system. An Overview of PostgreSQL and MongoDB Database Docker Compose uses this file when creating and maintaining the containers, networks, and volumes needed by your application. It works by listing the services provided by your application, along with their dependencies and configurations, in a YAML file called a Compose file. Multi-container Docker applications can run using Docker Compose. Containers are very portable and simple to deploy because they are isolated from the host system and one another. A container is a small, standalone executable software package with all codes, libraries, and dependencies required to run a program. Learn about NestJs on their website.ĭocker is an open-source platform that allows programmers to create, distribute, and run applications inside containers. Docker installed in our local machine.A basic understanding of Nodejs Server development.A basic understanding of Docker technology and how it works.We must first have the following before we can begin: We will also use API calls to communicate with the database containers.Īs a bonus, we will also interact with our databases using psql, a terminal-based frontend for connecting to PostgreSQL, and mongo shell, an interactive JavaScript interface for MongoDB. A NestJs server application will also be created, along with a server image and instructions on ways to add it as a service to our container. Visit their website to learn more about MongoDB. In this tutorial, we will look at how to use Docker-compose to run PostgreSQL and MongoDB services. If interested in NoSQL databases, visit this Wikipedia page. For example, a single database can be for transactional or ACID-compliant entities another might be a NoSQL database for analytics. Lastly, for compatibility, because many applications require multiple databases. Another is flexibility because different databases have different strengths and weaknesses. One is scalability, to improve performance and distribute the workload. Running many databases at once can be essential for a variety of reasons. You can easily construct and manage complicated applications that need several services with Docker Compose, such as web applications that require a database and a web server. Running several databases or other services is needed for development, and using containers and Docker Compose is a way to greatly simplify all the needed configuration and deployment work, as this article will show you.ĭocker Compose is a tool that enables you to define and manage numerous containers as one service. ![]()
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