Alertmanager
Alternative to PagerDuty
Best for
Prometheus-based monitoring stacks
Cost
Free and open source; self-hosted operational cost only.
Summary
Open-source alert routing and notification component from the Prometheus ecosystem, used to deduplicate, group, and route alerts to channels and responders.
Why Switch
Teams switch from PagerDuty to Alertmanager when they need a free, self-hosted alert routing layer and are comfortable replacing PagerDuty with a Prometheus-native tool.
Migration Playbook
- Export incident and alert data from PagerDuty using the PagerDuty API in JSON format, focusing on key fields such as incident ID, status, urgency, service, and timestamps.
- Map PagerDuty incident fields to Alertmanager alert labels and annotations: map 'incident ID' to 'alertname', 'status' to 'severity', 'urgency' to 'priority', 'service' to 'service', and timestamps to 'startsAt' and 'endsAt' fields in Alertmanager's alert format.
- Import the transformed alert data into Alertmanager by configuring Alertmanager's webhook receiver or using the Alertmanager API to push alerts, ensuring alerts are properly routed and grouped according to the mapped labels in the on-premises Alertmanager deployment.
Pros
- 🟢No license cost
- 🟢Excellent fit for Prometheus-based monitoring stacks
- 🟢Highly configurable routing and inhibition rules
Cons
- 🔴Requires self-management and operational expertise
- 🔴Not a full PagerDuty replacement for incident coordination
- 🔴Limited native on-call scheduling and collaboration features
0 builders switched
Alertmanager
Alternative to PagerDuty
Best for
Prometheus-based monitoring stacks
Cost
Free and open source; self-hosted operational cost only.
Summary
Open-source alert routing and notification component from the Prometheus ecosystem, used to deduplicate, group, and route alerts to channels and responders.
Why Switch
Teams switch from PagerDuty to Alertmanager when they need a free, self-hosted alert routing layer and are comfortable replacing PagerDuty with a Prometheus-native tool.
Migration Playbook
- Export incident and alert data from PagerDuty using the PagerDuty API in JSON format, focusing on key fields such as incident ID, status, urgency, service, and timestamps.
- Map PagerDuty incident fields to Alertmanager alert labels and annotations: map 'incident ID' to 'alertname', 'status' to 'severity', 'urgency' to 'priority', 'service' to 'service', and timestamps to 'startsAt' and 'endsAt' fields in Alertmanager's alert format.
- Import the transformed alert data into Alertmanager by configuring Alertmanager's webhook receiver or using the Alertmanager API to push alerts, ensuring alerts are properly routed and grouped according to the mapped labels in the on-premises Alertmanager deployment.
Pros
- 🟢No license cost
- 🟢Excellent fit for Prometheus-based monitoring stacks
- 🟢Highly configurable routing and inhibition rules
Cons
- 🔴Requires self-management and operational expertise
- 🔴Not a full PagerDuty replacement for incident coordination
- 🔴Limited native on-call scheduling and collaboration features
0 builders switched