Comprehensive Guide: Kubernetes and Prometheus Setup for DevOps Practices in a vue.js Project
Published: 2024-02-02 20:41:55

**Table of Contents**
* Project Structure
* 		[Introduction](url)
* 		[Prerequisites](url)
    * [Setup](url)
    * Install Minikube
    * [Start Minikube](url)
    * [Deploy Application](url)
    * [Expose Service](url)
    * [Enable Ingress](url)
    * [Deploy Prometheus](url)
    * [Deploy Grafana](url)
    * [Accessing Services](url)
    * [Application](url)
    * [Prometheus](url)
    * [Grafana](url)
* 		[Scaling Your Application](url)
    * [Monitoring and Management](url)
    * [Kubernetes Dashboards](url)
    * [Prometheus and Grafana](url)
* 		[Continuous Integration and Deployment (CI/CD)](url)
* 		[Horizontal Pod Autoscaler (HPA)](url)
* 		[Rolling Updates and Rollbacks](url)
* 		[Health Checks and Probes](url)
* 		[Alerting with Prometheus](url)
* [Alertmanager](url)
* [Alerting Rules](url)
* 		[Conclusion](url)


Project Structure 
.
├── Dockerfile
├── README.md
├── alertmanager-config.yaml
├── deployment.yaml
├── fastcgi-php.conf
├── grafana-values.yaml
├── index.html
├── monitoring.coreos.com_prometheuses.yaml
├── my-app-deployment.yaml
├── my-app-ingress.yaml
├── nginx.conf
├── node.js
├── package-lock.json
├── package.json
├── postcss.config.js
├── prometheus-config.yaml
├── prometheus-rules.yaml
├── prometheus-values.yaml
├── public
├── service.yaml
├── src
├── tailwind.config.js
└── vite.config.js

Deployment Files
Dockerfile
The Dockerfile contains instructions for building a Docker image for your Vue.js application.

deployment.yaml
The deployment.yaml file defines the configuration for deploying your application on a Kubernetes cluster.

service.yaml
The service.yaml file specifies the Kubernetes Service to expose your application.

my-app-deployment.yaml
This YAML file may contain specific configurations for your Vue.js application deployment.

my-app-ingress.yaml
The my-app-ingress.yaml file sets up Ingress for handling external traffic to your application.

Configuration Files
alertmanager-config.yaml
Configures Alertmanager for managing alerts in your Prometheus setup.

grafana-values.yaml
Contains configurations for Grafana, a powerful tool for visualization and analysis.

monitoring.coreos.com_prometheuses.yaml
Defines Prometheus configurations using CustomResourceDefinitions.

prometheus-config.yaml
Configures Prometheus for monitoring your application.

prometheus-rules.yaml
Specifies alerting rules for Prometheus to detect specific conditions.

prometheus-values.yaml
Holds values and settings for customizing Prometheus during deployment.

## Introduction
Welcome to the guide on setting up Kubernetes and Prometheus for streamlined DevOps practices in your Vue.js project! This comprehensive walkthrough will guide you through deploying your Vue.js application, leveraging Kubernetes for scaling, and implementing a robust monitoring and alerting system with Prometheus and Grafana.

## Project Overview
This project extends beyond a typical Vue.js setup. The primary goal is to enhance user experience by allowing them to identify dogs among other animals through API calls. As we delve into the DevOps setup, you'll not only learn how to optimize your Vue.js application but also gain insights into orchestrating your deployment with Kubernetes and ensuring seamless monitoring and alerting.

Let's embark on this journey to empower your Vue.js application with robust infrastructure and user-centric features.

Prerequisites:

Before diving into the Kubernetes and Prometheus setup for the Vue.js project, make sure you have the following prerequisites in place. Follow these steps to ensure a smooth setup:

Kubernetes Cluster:

Verify that you have a running Kubernetes cluster. You can use Minikube for local development or any cloud-based Kubernetes service.
Installation guide: Minikube Installation

```

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/bio9zpp4h8n2sl46r8vl.png)



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Docker:

Ensure Docker is installed on your machine. Kubernetes uses Docker containers for deploying applications.
Installation guide: Docker Installation





kubectl:

Install kubectl, the Kubernetes command-line tool, to interact with your Kubernetes cluster.
Installation guide: kubectl Installation


Helm:

Helm is a package manager for Kubernetes. Install Helm to simplify the deployment of applications and services.
Installation guide: Helm Installation


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/rky2ku57f0f4nlkk20iv.png)



Vue.js Application:

Ensure your Vue.js application is ready for deployment and adheres to best practices.
Vue.js documentation: Vue.js Guide
GitHub Account:

Set up a GitHub account for version control and CI/CD integration.
GitHub: GitHub

Prometheus Operator:

Install the Prometheus Operator for managing Prometheus instances in your Kubernetes cluster.
Installation guide: Prometheus Operator


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/s7mj2oai1y1fl32a0ngs.png)



Grafana:

Grafana is used for visualization and monitoring. Install Grafana for a comprehensive monitoring solution.
Installation guide: Grafana Installation
Ingress Controller:

Set up an Ingress Controller for handling external traffic to your services.
Installation guide: Ingress Controllers


Continuous Integration Service (Optional):


If you plan to implement CI/CD, choose a CI service (e.g., GitHub Actions, Jenkins, GitLab CI).
GitHub Actions: GitHub Actions
Ensure that you have met these prerequisites to proceed with the Kubernetes and Prometheus setup. If any of the prerequisites are missing, follow the provided links for installation guides and additional information.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/tkavopucf7biwwovnzgs.png)

**Minikube start** # to start up the kubernetes cluster using minikube

**minikube version** # to verify the version of the kubernetes cluster 
**minikube status** # is used to check the status of the kubernetes command 


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/cefqxo1ktfzn9o7i0fl1.png)

docker --version
docker info


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/hdk6vyyvay92xf2ae44q.png)
![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/fxg0aoiutf15ke2bc23c.png)