feat: add K8s integration test suite for cluster mode#61
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Adds a full k3d-based integration test that deploys 3 replicas with a real PostgreSQL coordinator to verify leader election, WS mesh, and event distribution across pods. Also adds dataSourceOverride passthrough to FlowcoreDataPumpCluster for test injection. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Events were being processed before workers connected. Now delivers events in batches of 10 after a 15s startup delay, giving the WS mesh time to form so events get distributed across pods. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
When notifier.type is "nats", NATS handles both event notifications and cluster event distribution via request/reply with queue groups, replacing the WS mesh for inter-pod communication. Shared NATS connection is reused by both notifier and distributor. WS mode remains unchanged as fallback. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
dataSourceOverridepassthrough toFlowcoreDataPumpClusterto enable test injection without Flowcore API credentialsTest plan
deno test -A— existing unit tests still pass (verified locally)deno lint && deno fmt --check— clean (verified locally)buildjob passes (lint, fmt, test, npm build)integration-testjob passes (k3d cluster, 3 pods, 100 events distributed across >= 2 pods, exactly 1 leader)bash integration/run-integration.sh🤖 Generated with Claude Code