This chart comes with its own MongoDB deployment and the necessary options to configure the entire chart to suit user needs. Installing Helm ChartsĬharts like node by bitnami (bitnami/node) allow users to facilitate all the resources required for a MERN application. Note – Some charts like node by bitnami come with their own MongoDB installation, further simplifying the deployment experience. For instance, the following commands can be used to search for MongoDB and nodes. The helm search option can be used to search for the necessary components of the MERN stack. Furthermore, it ensures that underlying configurations are optimized for performance and security when taken from a reputable source. This option is far simpler than creating charts from scratch. The other option is to use an existing Helm Chart from a public repository to provide the necessary resources such as MongoDB container and Node.js containers individually and use those containers to deploy the application. However, this option comes with the additional overhead of creating and maintaining the Helm Chart. It will enable users to create the exact configuration matching their needs. One is to create a Helm Chart from scratch and include all the necessary resources and distribute them via a private repository to your environments. Users have two options when deploying a MERN stack. There is also a high chance of having configuration errors as the deployment constantly changes across environments. However, it is cumbersome to manage these deployments manually. It allows to match the changing configurations and distribute them across different environments like DEV, QA, and Production. Users will need to constantly update this deployment file when strictly managing a deployment via YAML manifests. Additionally, the deployment will consist of some services to expose the necessary containers and persistent volumes to store data. The frontend will include the React components while the backend will contain the Express.js to power the backend functionality. A MERN stack deployment will consist of a MongoDB container to act as the database with the application packaged as two different custom containers for the frontend and the backend. Let’s look at a typical YAML manifest used to create a MERN stack in a Kubernetes cluster. Typical MERN Stack Deployment in Kubernetes React.js – The client-side JavaScript framework. A MERN stack consists of four key technologies like the following. A MERN stack allows users to power three-tier application architectures consisting of a frontend, backend, and a database. It allows developers to easily create containerized JavaScript applications powering both server-side and client-side configurations. What is a MERN Stack?Ī MERN stack is a collection of software bundled together to power JavaScript-based dynamic web applications. In this post, we will see how to deploy a MERN stack using Helm Charts. Helm is one such Kubernetes tool that enables users to easily package, install and distribute applications across Kubernetes clusters using Helm Charts. Then various tools and services emerged to further extend and complement Kubernetes making it the de facto choice for managing containerized environments. Kubernetes has brought powerful orchestration capabilities to containerized applications, allowing users to easily manage the entire lifecycle of their applications.
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