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External Secrets Operator

⬢ NIVÅ 3Tekniskt
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3 månader
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External Secrets Operator (ESO) is the de facto standard for syncing secrets from cloud vaults into Kubernetes. This skill goes beyond basic integration: designing rotation strategies for stateful systems (databases, message queues), multi-region failover, zero-downtime updates, and compliance auditing. Senior ESO architects earn 30-40% premium because they prevent credential breaches and ensure auditable rotation. Mastery takes 8-12 weeks. The skill unlocks staff engineer roles in security-focused organizations.

Vad är External Secrets Operator

External Secrets Operator (ESO) is the Kubernetes controller for integrating external secret stores (Vault, AWS Secrets Manager, Azure Key Vault) with K8s workloads. At scale, ESO becomes a critical infrastructure component: handling multi-region failover, compliance auditing, zero-downtime rotation, and secret distribution to 1000s of pods. The skill encompasses designing for compliance (SOC2, HIPAA, PCI), scaling to petabyte-scale secrets, multi-cloud federation, and incident response (rapid rotation on breach). This is infrastructure engineering, not just "sync secrets to K8s."

🔧 VERKTYG & EKOSYSTEM
External Secrets Operator (ESO) v1.2+HashiCorp Vault (HA mode)AWS Secrets Manager + KMSAzure Key VaultKubernetes operators and controllersArgoCD for GitOpsPrometheus + alertingVault replication

📋 Innan du börjar

Helm Advanced

💰 Lön per region

OmrådeNybörjareMidErfaren
USA$110k$180k$280k
UK£67k£110k£170k
EU€75k€125k€195k
CANADAC$115kC$190kC$290k

⚖ Jämför med

Kubernetes Rbac Security

❓ Vanliga frågor

How do I design ESO for petabyte-scale secrets?
Shard secrets across multiple Vault clusters by secret type. Database secrets in Vault-DB, API keys in Vault-API. ESO pulls from closest Vault. Reduces load, improves latency.
What's the best strategy for zero-downtime database password rotation?
Use dual-secret pattern: old password remains valid during rotation window, new password applied. Apps can read both (try new, fallback to old). After apps switch, deactivate old.
How do I audit which teams accessed which secrets?
Vault audit logs record every access. Ship logs to SIEM (Splunk, DataDog). Query for 'secret name + requesting service account'. Archive for 7+ years for compliance.
Should I rotate all secrets on the same schedule?
No. High-risk (database roots): weekly. Medium (API keys): monthly. Low (read-only tokens): quarterly. Stagger rotations to avoid coordination storms.
How do I recover if Vault is compromised?
Rotate all secrets immediately (automated). Invalidate old versions. Review audit logs for unauthorized access. Incident response: 30 min for immediate rotation, 24 hours for full audit.

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