Prometheus

Prometheus is an open-source monitoring system that is especially well-suited for cloud-native environments, like Kubernetes. It can monitor the performance of your applications and services, and alert you if there are any issues. It has a powerful query language that allows you to analyze the data it collects, and it also has a rich set of integrations with other tools and systems. For example, you can use Prometheus to monitor the health of your Kubernetes cluster, and use its integration with Grafana to visualize the data it collects.

Prometheus is a standalone system, but it can also be used in conjunction with other tools like Alertmanager to send alerts based on the data it collects. You can also use Prometheus to monitor the performance of your applications and services, and use its integrations with tools like PagerDuty to send alerts to the appropriate on-call personnel.

In summary, Prometheus is a powerful monitoring tool that is well-suited for cloud-native environments, and it has a wide range of integrations with other tools and systems to help you monitor and manage your applications and services.

Prometheus Architecture

Prometheus is a monitoring system that consists of the following components:

• A main server that scrapes and stores time series data
• A query language called PromQL is used to retrieve and analyze the data
• A set of exporters that are used to collect metrics from various systems and applications
• A set of alerting rules that can trigger notifications based on the data
• An alert manager that handles the routing and suppression of alerts

The Prometheus server stores the data in a time series database, and it also provides a web interface that you can use to query and analyze the data using PromQL. The web interface also includes a dashboard builder that allows you to create custom dashboards to visualize your data.

Prometheus also includes a built-in alert manager that can send notifications based on the data it collects. You can define alerting rules that specify when an alert should be triggered, and the alert manager will route and suppress the alerts as needed.

In summary, Prometheus is a powerful monitoring system that is designed to collect, store, and analyze time series data, and to alert you if there are any issues. It has a modular architecture that allows you to customize and extend it to meet your specific needs.

Pre-requisite: HELM Package Manager

Helm is a package manager for Kubernetes that allows you to install, upgrade, and manage applications on your Kubernetes cluster. With Helm, you can define, install, and upgrade your application using a single configuration file, called a Chart. Charts are easy to create, version, share, and publish, so you can collaborate with your team and the larger Kubernetes community.

There are many charts available in the Helm stable repository, which is maintained by the Helm community, and you can also find charts from other sources or create your own custom charts. Helm makes it easy to automate the deployment and management of applications on your Kubernetes cluster, so you can focus on building great software.