Cloud · DevOps · AI

Hi, I'm Shantayya

I write about AWS, DevOps, and AI — helping engineers navigate the rapidly evolving infrastructure landscape.

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TLS Troubleshooting Certificate Errors Kubernetes cert-manager Ingress

TLS Mastery — Part 8: Common Certificate Errors & How to Fix Them

The final part: a practical troubleshooting reference for the certificate errors you actually hit — untrusted CA, hostname/SAN mismatch, expired certs, broken chains, the 502/503 backend re-encryption trap, and cert-manager issues.

June 25, 2026 14 min read

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TLS Kubernetes Ingress SSL Offloading TLS Termination Traefik mTLS Client Certificates cert-manager Let's Encrypt

TLS Mastery — Part 7: Kubernetes Ingress TLS (SSL Offloading) | mTLS, Client Certs & cert-manager

Secure traffic into a Kubernetes cluster — Ingress routing, TLS termination at the controller, mutual TLS with client certificates, and automating cert issuance with cert-manager.

June 20, 2026 18 min read

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TLS PEM PKCS12 OCSP Lets Encrypt ACME HSTS

TLS Mastery — Part 6: Formats, Revocation, Let's Encrypt & HSTS

The real-world TLS topics tutorials skip: certificate file formats, revocation (CRL/OCSP/stapling), free automated certificates with Let's Encrypt and ACME, and HSTS.

June 18, 2026 10 min read

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