Deploy Falcosidekick alongside Falco (via Helm chart or standalone deployment) and configure Falco to forward JSON output to Falcosidekick's HTTP endpoint
Set Falco's JSON output mode by enabling 'json_output: true' and 'http_output.enabled: true' with the Falcosidekick URL in falco.yaml
Configure the Slack output in Falcosidekick config by providing the webhook URL and optional minimumpriority to filter low-severity alerts
Configure the S3 output section with bucket name, region, and prefix; ensure the Falcosidekick process has an IAM role or credential that grants s3:PutObject
Configure a generic webhook output with the target URL and any required headers
Deploy and validate by triggering a Falco alert and checking all three destinations receive the event payload
Known gotchas
Falcosidekick uses its own minimumpriority setting per output — if not set, all priorities are forwarded; set per-output minimumpriority to avoid flooding low-signal destinations like Slack
When Falco and Falcosidekick run in the same pod or namespace, use a Kubernetes Service name rather than localhost so the HTTP output address is resolvable
S3 output buffers events and flushes on a timer; alerts may not appear in S3 immediately after being emitted, which can cause confusion during testing
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