Alert rules define when, why, and where SteadyStack dispatches incident notifications.

Trigger Types

STATUS_CHANGE: Trigger when a monitor transitions state (e.g., UP -> DOWN, DOWN -> UP, or DEGRADED).
LATENCY: Trigger when response time exceeds a static millisecond threshold or dynamic anomaly limit.
SSL_EXPIRY: Trigger when an SSL/TLS certificate has fewer than $N$ days remaining before expiration.
DNS_WATCHDOG: Trigger if DNS records change unexpectedly.
DOMAIN_EXPIRY: Trigger when WHOIS domain registration is nearing expiration.

Example Rule Configuration

HCL

resource "steadystack_alert_rule" "critical_api_down" {
  monitor_id    = steadystack_monitor.api.id
  trigger       = "STATUS_CHANGE"
  target_status = "DOWN"
  enabled       = true
  channel_ids   = [
    steadystack_alert_channel.pagerduty_oncall.id,
    steadystack_alert_channel.slack_sre.id
  ]
}