Portal | Level: L2: Operations | Topics: TLS & PKI, Kubernetes Core | Domain: DevOps & Tooling
Symptoms: User Auth Failing, OIDC Cert Expired, Fix Is Cloud KMS Rotation¶
| File | Purpose |
|---|---|
| symptoms.md | Problem statement and observable symptoms |
| questions.md | Diagnostic questions to work through |
| investigation.md | Full investigation path across domains |
| remediation.md | Cross-domain fix and verification |
| grading.md | Self-assessment rubric |
Cross-domain incident study — see cross-domain index for context.
Pages that link here¶
- BMC Clock Skew - Certificate Failure
- Cross-Domain Incident Case Studies
- Grading Rubric
- HTTP Protocol - Primer
- Nginx & Web Servers - Primer
- Runbook: Certificate Renewal Failed
- Runbook: TLS Certificate Expiry
- Scenario: DNS Resolves Correctly but Application Fails to Connect
- Scenario: TLS Certificate Expired
- Symptoms: DNS Looks Broken, TLS Is Expired, Fix Is in Cert-Manager
- Symptoms: Deployment Stuck, ImagePull Auth Failure, Fix Is Vault Secret Rotation
- TLS & Certificates Ops - Primer
- TLS & PKI - Skill Check
- TLS & PKI Drills
- TLS Works From Some Clients But Fails From Others
Wiki Navigation¶
Prerequisites¶
- Kubernetes Ops (Production) (Topic Pack, L2)
Related Content¶
- Case Study: DNS Looks Broken — TLS Expired, Fix Is Cert-Manager (Case Study, L2) — Kubernetes Core, TLS & PKI
- Case Study: Deployment Stuck — ImagePull Auth Failure, Vault Secret Rotation (Case Study, L2) — Kubernetes Core, TLS & PKI
- Adversarial Interview Gauntlet (30 sequences) (Scenario, L2) — Kubernetes Core
- Case Study: Alert Storm — Flapping Health Checks (Case Study, L2) — Kubernetes Core
- Case Study: BMC Clock Skew Cert Failure (Case Study, L2) — TLS & PKI
- Case Study: Canary Deploy Routing to Wrong Backend — Ingress Misconfigured (Case Study, L2) — Kubernetes Core
- Case Study: CrashLoopBackOff No Logs (Case Study, L1) — Kubernetes Core
- Case Study: DaemonSet Blocks Eviction (Case Study, L2) — Kubernetes Core
- Case Study: Drain Blocked by PDB (Case Study, L2) — Kubernetes Core
- Case Study: HPA Flapping — Metrics Server Clock Skew, Fix Is NTP (Case Study, L2) — Kubernetes Core