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I Followed the n8n AWS Docs and It Broke at the First Command

Sarvar NadafSep 25, 2026 • 7 min read

I Followed the n8n AWS Docs and It Broke at the First Command

The one command that breaks n8n self-hosting on Amazon Linux 2023, why it happens, and the full past...

#aws#n8n#docker#devops

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What Nobody Is Using in Your Google Cloud Projects, and What It Costs

xbillSep 22, 2026 • 14 min read

What Nobody Is Using in Your Google Cloud Projects, and What It Costs

A local-first CLI that scans Google Cloud projects for unused resources, prices each one from the Cl...

#googlecloud#python#devops#opensource

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Blacksmith's GitHub Actions runners finished the same job 3 to 4 times faster than GitHub hosted Actions, across 10 trials

Alex GeorgievSep 20, 2026 • 5 min read

Blacksmith's GitHub Actions runners finished the same job 3 to 4 times faster than GitHub hosted Actions, across 10 trials

I benchmarked Blacksmith against github-hosted ubuntu-latest with 10 repeated trials each on an iden...

#githubactions#devops#ci#productivity

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Caddy 2.11's default post-quantum key exchange sends six times more handshake bytes

Alex GeorgievSep 19, 2026 • 6 min read

Caddy 2.11's default post-quantum key exchange sends six times more handshake bytes

I measured Caddy's new default X25519MLKEM768 key exchange against classical X25519: ClientHello gro...

#caddy#security#performance#devops

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Put the Arithmetic in the Tool: an MCP Server for an AWS Waste Scanner

xbillSep 21, 2026 • 8 min read

Put the Arithmetic in the Tool: an MCP Server for an AWS Waste Scanner

A cost report gets read twice: once by a person in a terminal, once by an agent through an MCP serve...

#aws#mcp#python#devops

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Git 2.55's reftable backend creates 10,000 refs in 40ms instead of 650ms

Alex GeorgievSep 24, 2026 • 7 min read

Git 2.55's reftable backend creates 10,000 refs in 40ms instead of 650ms

Git's reftable ref backend cut a 10,000-branch bulk write from up to 650ms to about 40ms and shrank ...

#git#devops#performance#opensource

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PostgreSQL 19's data checksums can now be switched on without stopping the server

Alex GeorgievSep 22, 2026 • 7 min read

PostgreSQL 19's data checksums can now be switched on without stopping the server

I measured PostgreSQL 19 beta's online checksum conversion against the old offline tool: roughly 1.3...

#postgres#database#devops#performance

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Kubernetes 1.37's kyaml output closes a YAML bug that still deletes data on apply

Alex GeorgievSep 25, 2026 • 7 min read

Kubernetes 1.37's kyaml output closes a YAML bug that still deletes data on apply

I fed Kubernetes 1.37 a batch of Norway-bug values by hand: 8 got rejected outright, 2 got rejected ...

#kubernetes#yaml#devops#kubectl

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I Think AI Is Making Coding Easier and Learning Harder

Jaideep ParasharSep 25, 2026 • 6 min read

I Think AI Is Making Coding Easier and Learning Harder

I can write code faster today than I could a few years ago. AI can explain an unfamiliar...

#ai#webdev#devops#beginners

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Stop Whitelisting Port 22: SSH into Private EC2 from GitHub Actions via AWS SSM 🔐

Ankur KSep 20, 2026 • 7 min read

Stop Whitelisting Port 22: SSH into Private EC2 from GitHub Actions via AWS SSM 🔐

Deploy to a private EC2 instance from CI with plain ssh, rsync and scp — no inbound port 22, no publ...

#aws#githubactions#devops#security

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How much traffic can a $6 server handle? I measured it: 9,737 requests a second

RemdoreSep 21, 2026 • 6 min read

How much traffic can a $6 server handle? I measured it: 9,737 requests a second

A real app on the cheapest droplet money buys: 1,117,976 requests with zero errors, 9,737/s static a...

#performance#devops#webdev#nginx

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GRO Hid My TLS Handshake's Real Packet Split, Even Over a Real Network

Alex GeorgievSep 25, 2026 • 5 min read

GRO Hid My TLS Handshake's Real Packet Split, Even Over a Real Network

Docker couldn't show me whether a post-quantum TLS handshake really splits across two TCP segments, ...

#networking#tls#linux#devops

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The 1.4 milliseconds that separate managed Postgres from a local one

RemdoreSep 25, 2026 • 6 min read

The 1.4 milliseconds that separate managed Postgres from a local one

One app, two identical Postgres 17 databases, same region. Local was 4 to 7 times faster on reads be...

#postgres#database#devops#performance

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The web cares much less about where you are than what you are

RemdoreSep 23, 2026 • 6 min read

The web cares much less about where you are than what you are

I rented eight servers on five continents to map geo-blocking and found almost none. Only 8.4% of th...

#networking#webdev#security#devops

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The secret was correct. The first byte wasn't.

RedCapraSep 20, 2026 • 3 min read

The secret was correct. The first byte wasn't.

Our deploy tool pushed a fresh API token to production. It reported success. The token was correct.....

#devops#powershell#security#debugging

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How I Added OpenTelemetry Tracing to 47 Services With Claude Code in 9 Days

yureki_labSep 24, 2026 • 7 min read

How I Added OpenTelemetry Tracing to 47 Services With Claude Code in 9 Days

TL;DR I had 47 backend services that emitted logs but no traces, so every incident turned...

#ai#claudecode#observability#devops

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The Junior Ops Pipeline Did Not Collapse. It Never Existed.

DevOps DailySep 22, 2026 • 11 min read

The Junior Ops Pipeline Did Not Collapse. It Never Existed.

The story going round is about developers. Junior job postings down 60 to 70 percent since 2022....

#devops#career#sre#hiring

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My CI hadn't run a single one of those tests in two months and stayed green the whole time

Juan Camilo AuritiSep 23, 2026 • 3 min read

My CI hadn't run a single one of those tests in two months and stayed green the whole time

I added a dependency to a test helper and forgot to declare it in the dev extra. Locally it was...

#testing#python#devops#webdev

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I Built a Multi-Region Pilot Light on AWS. The Diagram Was the Easy Part.

Rykiel KAMENISep 21, 2026 • 3 min read

I Built a Multi-Region Pilot Light on AWS. The Diagram Was the Easy Part.

Most disaster recovery write-ups stop at the diagram. You get two boxes, an arrow labelled...

#aws#terraform#devops#architecture

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I Compared 5 LLM Gateway Tools for Real-World Production Use

Harsh RavalSep 23, 2026 • 12 min read

I Compared 5 LLM Gateway Tools for Real-World Production Use

When an LLM application starts handling real users, calling a model API is usually easy. The problem...

#ai#llm#devops#discuss

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Docker Engine 29.8's --umask flag fixes permissions docker exec used to reset

Alex GeorgievSep 23, 2026 • 6 min read

Docker Engine 29.8's --umask flag fixes permissions docker exec used to reset

Docker Engine 29.8 added a native --umask flag. I measured the entrypoint-script workaround it repla...

#docker#devops#security#containers

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Traefik 3.6's multi-layer routing held up against 500 concurrent header-spoofing attempts

Alex GeorgievSep 21, 2026 • 7 min read

Traefik 3.6's multi-layer routing held up against 500 concurrent header-spoofing attempts

I tested Traefik 3.6's new parentRefs routing: 0 of 500 concurrent requests bypassed a parent router...

#traefik#docker#security#devops

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Raju DandigamSep 23, 2026 • 3 min read

Uptime Is Not an Agent SLO

An agent endpoint returns HTTP 200 in 99.95% of requests. The service is “up.” Meanwhile, some...

#ai#sre#observability#devops

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Build a Reproducible AI Agent Evaluation Lab with Docker Compose

Raju DandigamSep 21, 2026 • 4 min read

Build a Reproducible AI Agent Evaluation Lab with Docker Compose

An agent evaluation fails in CI but passes locally. Before blaming the model, ask whether both runs....

#docker#ai#testing#devops

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