#Alertmanager Installation | Alerting Using Alertmanager | Grouping of Alerts and Alerting Rules

Alertmanager Installation | Alerting Using Alertmanager | Grouping of Alerts and Alerting Rules
In this lecture you will learn about Alerting, Alertmanager, Alerting Rules and Setting up Alerts
Alerting with Prometheus is separated into two parts. Alerting rules in Prometheus servers send alerts to an Alertmanager. The Alertmanager then manages those alerts, including silencing, inhibition, aggregation and sending out notifications via methods such as email and chat platforms. The main steps to setting up alerting and notifications are:
Setup and configure the Alertmanager
Configure Prometheus to talk to the Alertmanager
Create alerting rules in Prometheus
The Alertmanager handles alerts sent by client applications such as the Prometheus server.
It takes care of deduplicating, grouping, and routing them to the correct receiver integration such as email, webhook, or OpsGenie.
It also takes care of silencing and inhibition of alerts.
Grouping of Alerts
Grouping categorizes alerts of similar nature into a single notification. Example: Dozens of instances of a service are running in your cluster when a network failure occurs. Half of your service instances can no longer reach the database. Alerting rules in Prometheus were configured to send an alert for each service instance if it cannot communicate with the database. As a result hundreds of alerts are sent to Alertmanager.One can configure Alertmanager to group alerts by their cluster and alertname so it sends a single compact notification. Grouping, timing for the grouped notifications, and the receivers of those notifications are configured by a routing tree in the configuration file.
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[mohammedsuhailbasha]

Pls show one example configuration file and explain so that it will be very helpful for us to understand