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July 2025

Kubernetes Affinities: Production Engineer's Guide
You know that sinking feeling when your pods are all crammed onto one node, or when your Redis cache is running three availability zones away from your…
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Sharon Sahadevan
How I Solved a $50K Certificate Outage in 15 Minutes Using OSI Layers
The real story behind the certificate crisis that stumped 3 teams - and how the OSI mental model turned chaos into systematic debugging
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Sharon Sahadevan
GitOps: The Declarative Operations Philosophy
From imperative chaos to declarative clarity: How GitOps represents a fundamental shift in how we think about operations.
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Sharon Sahadevan
The 3:47 AM Crisis: How OSI Thinking Saved Our Revenue
How did I resolve the issue?
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Sharon Sahadevan
The OSI Model: Not Academic BS - Here's Why It Matters in Production
How understanding the OSI layers saved me 4 hours of debugging and prevented a customer-facing outage
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Sharon Sahadevan
SSL/TLS in Kubernetes: The Complete Mental Model
Why I spent 3 months debugging certificate issues that could have been solved in 3 hours with the right mental framework
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Sharon Sahadevan
Observability vs. Monitoring: A Conceptual Framework
Understanding the philosophical shift from reactive monitoring to proactive understanding in cloud native systems
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Sharon Sahadevan
Ambassador Containers: The Diplomatic Proxies of Kubernetes
A DevOps Engineer's Guide to External Communication and Service Discovery
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Sharon Sahadevan
The CAP Theorem: Why Your Database Can't Have It All (And That's Okay)
Understanding one of the most important concepts in distributed systems
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Sharon Sahadevan
© 2025 Sharon Sahadevan
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