It is mutually exclusive with `telegram_bot_token`. [ telegram_bot_token_file: <string> ] [ webex_api_url: <string> | default = "https://webexapis.com/v1/messages" ] [ mattermost_webhook_url: <secret> ] [ mattermost_webhook_url_file: <string> ] # The default HTTP client configuration [ http_config: <http_config> ] # ResolveTimeout is the default value used by alertmanager if the alert does # not include EndsAt, after this time passes it can declare the alert as resolved if it has not been updated. # This has no impact on alerts from Prometheus, as they always include EndsAt.

Alertmanager supports configuration to create a cluster for high availability. This can be configured using the --cluster-* flags. It's important not to load balance traffic between Prometheus and its Alertmanagers, but instead, point Prometheus to a list of all Alertmanagers.

4 weeks ago - To point your Prometheus 1.4, or later, instance to multiple Alertmanagers, configure them in your prometheus.yml configuration file, for example:

January 25, 2026 - # prometheus.yml alerting: alertmanagers: - static_configs: - targets: - alertmanager-1:9093 - alertmanager-2:9093 - alertmanager-3:9093 · Start simple: Begin with basic routing and add complexity as needed.

Create a Prometheus user, required directories, and make prometheus user as the owner of those directories. sudo groupadd -f alertmanager sudo useradd -g alertmanager --no-create-home --shell /bin/false alertmanager sudo mkdir -p /etc/alert...

The AlertmanagerConfig resource named example-config in namespace default will be a global AlertmanagerConfig. When the operator generates the Alertmanager configuration from it, the namespace label will not be enforced for routes and inhibition rules.

To use alert manager and templating ... manager configuration YAML file. An Amazon Managed Service for Prometheus alert manager file has two main sections: template_files: contains the templates used for messages sent by receivers. For more information, see Template Reference ... alertmanager_config: contains ...

The alertmanager.yaml file stores Alertmanager configurations. Configurations in this file specify how Alertmanager routes and delivers the alerts received from Prometheus.

August 1, 2024 - Install Alertmanager by downloading the binary from the official Prometheus website. Create an Alertmanager configuration file (alertmanager.yml) with the following basic structure:

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January 19, 2026 - To set up alerting rules in Prometheus Alertmanager, define your alerting rules in a YAML file (typically prometheus.yml). Specify the conditions under which alerts should trigger and the actions to take when an alert is fired.

November 9, 2022 - Here is a basic architecture of Alertmanager with Prometheus. Alert rules are defined in Prometheus configuration. Prometheus just scrapes (pull) metrics from its client application(the Node Exporter).

May 3, 2026 - It only receives alerts pushed to it. If Prometheus can't reach Alertmanager, alerts are queued in Prometheus memory and retried. Configure alertmanagers in prometheus.yml with the Alertmanager address.

February 26, 2020 - (PagerDuty is a paid service, but you can always do a 14-day free trial.) Once you’re logged in, go to Configuration -> Services -> + New Service. Choose Prometheus from the Integration types list and give the service a name.

April 23, 2026 - Complete prometheus alertmanager setup guide for production. Routing trees, inhibition rules, Slack and PagerDuty integration, HA configuration and alert fatigue prevention.

This can be configured using the --cluster-* flags. It's important not to load balance traffic between Prometheus and its Alertmanagers, but instead, point Prometheus to a list of all Alertmanagers.

April 21, 2018 - Take a look at journalctl -u alertmanager and ensure it starts up. At this point you can reach it on http://localhost:9093 or whatever you set --web.external-url to, but don’t forget to configure the reverse proxy first. Next, we need to actually tell Prometheus that there’s an alertmanager ...

Prometheus can be configured to automatically discover available Alertmanager instances through its service discovery integrations.

Once Alertmanager receives an alert from Prometheus, it is processed based on its configuration. This usually involves grouping, deduplication, and routing to the appropriate receivers such, as email, Slack, or a custom webhook.

March 20, 2026 - # prometheus.yml global: scrape_interval: 15s evaluation_interval: 15s # Point Prometheus to Alertmanager alerting: alertmanagers: - static_configs: - targets: - alertmanager:9093 # Load alert rules rule_files: - /etc/prometheus/rules/*.yml scrape_configs: - job_name: 'prometheus' static_configs: - targets: ['localhost:9090'] - job_name: 'node' static_configs: - targets: ['node-exporter:9100']