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  1. IL-0463 Secure Connect connectors timed out after a GKE control plane upgrade left Harness's internal load balancer unreachable
    Harness2026
    Symptoms

    On 12 May 2026, Harness customers who used Secure Connect saw git connector tests fail with connection timeouts and CI pipelines hang or fail, while connectors without Secure Connect kept working. Continuous Integration Enterprise Mac and Linux Cloud Builds in Prod 1, Prod 2 and Prod 3 were affected.

    Network unreachableResources deleted
    Trigger

    An automated GKE control plane upgrade on the cluster that hosts Harness's internal Secure Connect FRPS (Fast Reverse Proxy Server) infrastructure.

    Root cause
    Cloud provider outage
    Component
    GKE control planeCloud controller managerCloud load balancer
    Contributing factor
    –
    Remediation
    • Ran a rollout restart of the FRPS deployment, which restored client connectivity to FRPS but not the lost IP
    • Deleted and recreated the internal service frps-internal so GKE provisioned a new load balancer and IP
    • Updated the Cloud DNS A record to the new load balancer IP
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Check your cluster for this

This case involves Cloud controller manager and Cloud load balancer. kubegap audits a Kubernetes cluster for gaps like these, read-only, from Claude Code or Codex; its checks cite public reports like the ones in this library.

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By root cause1

Cloud provider outage1 case

Component
Cloud controller managerCloud load balancerGKE control plane
Contributing factor
–
Organisation
Harness
  1. IL-0463 Secure Connect connectors timed out after a GKE control plane upgrade left Harness's internal load balancer unreachable
    Harness2026