StackStorm
By the StackStorm community (originally Brocade)
StackStorm is an open-source, event-driven automation platform that connects triggers from monitoring, ticketing, and infrastructure systems to automated actions and workflows, commonly summarized by its own tagline of enabling…
Definition
StackStorm is an open-source, event-driven automation platform that connects triggers from monitoring, ticketing, and infrastructure systems to automated actions and workflows, commonly summarized by its own tagline of enabling if-this-then-that automation for operations. It lets operations and security teams codify runbooks as executable workflows that fire automatically in response to alerts or events rather than requiring a human to run them manually every time.
Overview
StackStorm was built to close the gap between detecting a problem and acting on it in IT operations: monitoring tools are good at raising alerts, but turning an alert into a remediation action traditionally required a human to read a runbook and execute steps manually. StackStorm formalizes that runbook as an automated workflow that the platform itself can trigger and execute when a matching event occurs, reducing the delay and inconsistency of manual incident response. Mechanically, StackStorm is organized around three core concepts: sensors, which watch external systems and emit events; rules, which match incoming events to criteria and decide whether to fire; and actions or workflows, which are the scripts or multi-step processes executed when a rule matches. Workflows can be written using StackStorm's own workflow language, Orquesta, or plugged into other automation tools, and the platform ships with a large library of community-contributed integration packs covering common infrastructure and monitoring systems, letting teams wire together existing tools rather than writing all integration code from scratch. StackStorm also keeps a full audit trail of every triggered event, evaluated rule, and executed action, which gives operations and security teams a record of exactly what automation ran and why during an incident. StackStorm sits in the automation category alongside Rundeck, which focuses more narrowly on job scheduling and execution with role-based access control for operational runbooks, and Ansible, which is primarily a configuration management and provisioning tool rather than an event-driven automation engine. StackStorm's distinguishing feature is its rule-driven, reactive model — it is built to respond automatically to events rather than to be invoked on a schedule or by a human operator, which is closer in spirit to what Ansible or Rundeck do when manually triggered. In practice, StackStorm is used for automated incident remediation, such as automatically restarting a failed service or scaling infrastructure when a monitoring alert fires, as well as for security automation workflows like automatically quarantining a compromised host, and for chaining together existing tools into a coherent automated response pipeline. The trade-off is operational complexity: StackStorm itself is a nontrivial system to deploy, secure, and maintain, with its own components for the rules engine, message bus, and workflow execution, so teams need meaningful automation needs and dedicated ownership to justify running it rather than simpler alternatives like scripted cron jobs or Rundeck job definitions. Smaller teams often start with a narrower tool and adopt StackStorm only once manual incident response has clearly become a recurring bottleneck.
Key Features
- Sensors, rules, and actions forming an event-driven automation model
- Orquesta workflow language for multi-step automated processes
- Large library of community integration packs for common infrastructure tools
- Automatic triggering of remediation workflows from monitoring or ticketing events
- ChatOps integration allowing workflows to be triggered from chat platforms
- Role-based access control over which actions can be executed
- Audit history of triggered events, rules, and executed actions