DevOps Daily Newsletter - Week 28, 2026

Hope your week is off to a good start - here's everything we published at DevOps Daily, from Postgres performance wins to a pair of CVEs worth your attention.

Blog Posts

Stop Paginating With OFFSET: Keyset Pagination and the Deep-Page Cliff

OFFSET works fine until someone hits page 500 and your database starts scanning everything it just threw away. This one walks through keyset pagination and why deep pages fall off a performance cliff.

Firebase Alternatives in 2026: Choose by Why You Are Leaving, Not by a Ranking

Firebase is really five products in a trench coat, so ranking 'alternatives' side by side makes no sense. Pick a replacement based on the actual reason you want out.

Preview Environments That Include the Backend, Not Just the Frontend

Every PR gets a frontend preview URL, but they all point at the same shared staging database. Here's how to spin up real backend previews per PR so testing actually means something.

When the SSH Server Attacks the Client: libssh2 CVE-2026-55200

You spent years hardening sshd, but this pre-auth heap overflow lives in the client library instead. If anything you run uses libssh2 to connect out, you want to read this.

A Postgres-Backed MCP Server in ~20 Lines

Most of what an MCP server does is run database queries for an AI agent, so why not build it right on the database? A working Postgres-backed MCP server in roughly 20 lines.

Stop Using Random UUIDs as Primary Keys: uuidv7() Lands in PostgreSQL 18

Random UUIDv4 primary keys scatter writes across your indexes and quietly slow down inserts on big tables. PostgreSQL 18 ships uuidv7() to fix that, and here's why it matters.

hostNetwork Is Still a Footgun: What CVE-2026-32193 Teaches Every Cluster

A recent AKS advisory showed an untrusted pod with hostNetwork breaking out to the worker node. The lesson applies to every cluster, not just Azure.

News Digests

DevOps Weekly Digest - Week 27, 2026

Your quick catch-up on the week in Kubernetes, cloud native tooling, CI/CD, IaC, observability, and security. Skim it over coffee and stay current.

Comparisons

Redis vs Memcached

Both cache, but they're built for different jobs. A side-by-side look at data structures, persistence, and when each one is the right pick.

PostgreSQL vs MySQL

The classic database question, answered with specifics instead of vibes. Performance, features, and which workloads favor which engine.

Guides

Introduction to Terraform

Start managing infrastructure as code, from first concepts through production-ready configuration. A solid on-ramp if Terraform has been sitting on your list.