https://gastonmardones.dev/en/cases/ Real production incidents I diagnosed and solved. I publish a new one every month; internal details are anonymized. en-us https://gastonmardones.dev/en/cases/console-logs-managedfields/ https://gastonmardones.dev/en/cases/console-logs-managedfields/ Mon, 05 Oct 2026 00:00:00 GMT Several teams couldn't see their QA namespaces in Observe → Logs. It looked like RBAC; it was a Server-Side Apply conflict that had kept the observability operator degraded for months. OpenShift Operators Server-Side Apply RBAC https://gastonmardones.dev/en/cases/security-audit-at-scale/ https://gastonmardones.dev/en/cases/security-audit-at-scale/ Fri, 25 Sep 2026 00:00:00 GMT The goal was to find vulnerabilities and exposed secrets across the organization's entire codebase: not just source code, but also scripts, config and docs. DevSecOps Semgrep gitleaks Python https://gastonmardones.dev/en/cases/mutating-webhook-pipelines/ https://gastonmardones.dev/en/cases/mutating-webhook-pipelines/ Thu, 10 Sep 2026 00:00:00 GMT Overnight, pipelines in dozens of namespaces started failing at the first step. The cause was a mutating webhook installed by a monitoring agent. Tekton SCC Admission webhooks CI/CD https://gastonmardones.dev/en/cases/loki-wal-checkpoint/ https://gastonmardones.dev/en/cases/loki-wal-checkpoint/ Fri, 28 Aug 2026 00:00:00 GMT The ingesters' WAL disks were full. It looked like a known object storage issue, but it was a checkpoint stuck in a disk-full loop. Loki OpenShift Logging Storage Troubleshooting