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619 posts tagged with "Cost Optimization"

Cloud vs owned-hardware cost breakdowns and bill analysis

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Hetzner's June 2026 Price Hike Doubled Some Instances — Here's the Recomputed Break-Even Against Render and Railway
·Dora Noda·8 min

Hetzner's June 2026 Price Hike Doubled Some Instances — Here's the Recomputed Break-Even Against Render and Railway

Hetzner's June 15, 2026 adjustment raised CPX and CCX instances by up to 209% while CX and CAX barely moved. A line-by-line recompute of a web+worker+Postgres topology on post-hike Hetzner versus Render and Railway — and why picking the wrong instance family now costs as much as picking the wrong vendor.

self-hosting
PaaS
cost-optimization
migration
Karpenter's Alpha Cluster API Provider vs. Cluster Autoscaler: What Actually Autoscales an Owned-Hardware Kubernetes Fleet in 2026
·Dora Noda·9 min

Karpenter's Alpha Cluster API Provider vs. Cluster Autoscaler: What Actually Autoscales an Owned-Hardware Kubernetes Fleet in 2026

A Hetzner-backed Cluster API fleet gets its node-ready time from Cluster API's own machine lifecycle, not from which autoscaler is asking — here's what Cluster Autoscaler, alpha Karpenter-for-CAPI, and vCluster's Auto Nodes each actually deliver today.

PaaS
self-hosting
infrastructure
cost-optimization
Kubernetes Ships an Official Agent Sandbox Primitive: What It Actually Buys a Self-Hosted PaaS
·Dora Noda·9 min

Kubernetes Ships an Official Agent Sandbox Primitive: What It Actually Buys a Self-Hosted PaaS

Kubernetes SIG Apps shipped an upstream CRD for running untrusted AI-agent code safely — here's what it gives a Cluster API-based PaaS for free versus E2B, Daytona, and Modal, the real cost math, and what's still missing.

self-hosting
PaaS
AI agents
infrastructure
+1
Render and Railway Bill Per-Second for What Kubernetes CronJob Does for Free
·Dora Noda·9 min

Render and Railway Bill Per-Second for What Kubernetes CronJob Does for Free

A line-by-line cost comparison of Render Cron Jobs and Railway's cron feature against a plain Kubernetes CronJob on a self-hosted Cluster API fleet, at 1, 5, 20, and 100 scheduled jobs a month.

PaaS
self-hosting
cost-optimization
infrastructure
The 20-40% Kubernetes Tax: What Small-Team Maintenance Data Actually Costs, and When Fleet Management Pays It Off
·Dora Noda·8 min

The 20-40% Kubernetes Tax: What Small-Team Maintenance Data Actually Costs, and When Fleet Management Pays It Off

Small teams running their own Kubernetes lose 20-40% of an engineer's time to upgrades, cert rotation, and etcd backups — here's what that costs in dollars, and when Cluster API automation actually claws it back.

self-hosting
PaaS
infrastructure
engineering
+1
Kubernetes 1.36's unusedSince Field Turns Orphaned-Volume Hunting Into a Query
·Dora Noda·8 min

Kubernetes 1.36's unusedSince Field Turns Orphaned-Volume Hunting Into a Query

Kubernetes 1.36 adds an unusedSince timestamp to every PVC's status, turning orphaned-volume hunting from a manual cross-reference script into a one-line query — and a self-hosted PaaS's precondition for automated reclaim jobs.

infrastructure
self-hosting
PaaS
cost-optimization
What a Modal AI-Agent Sandbox Really Costs: The Multiplier Stack Comparison Sites Keep Getting Wrong
·Dora Noda·9 min

What a Modal AI-Agent Sandbox Really Costs: The Multiplier Stack Comparison Sites Keep Getting Wrong

Modal advertises $0.0000131 per CPU core-second, but AI-agent Sandboxes are forced non-preemptible and region-pinned, pushing the real bill to 3x-5.25x that rate — not the 3.75x figure recycled across pricing-comparison sites, which doesn't match Modal's current docs at all.

self-hosting
PaaS
infrastructure
cost-optimization
+1
Netlify Made AI Agents a Line Item: The Math Behind a $20 Credit Pool One Agent Can Drain in a Day
·Dora Noda·9 min

Netlify Made AI Agents a Line Item: The Math Behind a $20 Credit Pool One Agent Can Drain in a Day

Netlify's April 2026 update didn't just kill seats — it made AI-agent token spend its own billable meter. Here's the actual math: a background agent can burn a month's $20 credit pool in hours, and Netlify's own numbers reveal a hidden 20% markup on top.

self-hosting
PaaS
AI agents
cost-optimization
+1
Railway Killed Its Own Zero-Config Builder Over a 17x Image-Size Tax — Here's the Actual Bill
·Dora Noda·9 min

Railway Killed Its Own Zero-Config Builder Over a 17x Image-Size Tax — Here's the Actual Bill

Railway shut down active development of Nixpacks after its own numbers showed a 17x image-size tax against a hand-written Dockerfile. Here's what that actually costs, what Railpack fixes, and what a self-hosted PaaS should default to instead.

self-hosting
PaaS
infrastructure
cost-optimization
Showing 586–594 of 619 posts