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Insights, analysis, and updates from the AI agent economy. Browse by tag · Browse the archive.

KubeVela's OAM Delivery Engine Runs Alibaba's Hybrid Cloud and ByteDance's Gaming PaaS: What It Buys Over a Simpler Git-Push Deploy API
·Dora Noda·8 min

KubeVela's OAM Delivery Engine Runs Alibaba's Hybrid Cloud and ByteDance's Gaming PaaS: What It Buys Over a Simpler Git-Push Deploy API

KubeVela's component-trait-policy-workflow model runs Alibaba's hybrid-cloud fleet and ByteDance's gaming PaaS. Here's the concrete YAML gap between that and a Render-style git-push deploy API — and when the extra layer is worth the complexity.

Kubernetes
PaaS
self-hosting
infrastructure
Kubernetes 1.36's PSI Metrics Graduate to GA: What Pressure Stall Information Catches About Resource Starvation That CPU% Utilization Misses
·Dora Noda·8 min

Kubernetes 1.36's PSI Metrics Graduate to GA: What Pressure Stall Information Catches About Resource Starvation That CPU% Utilization Misses

Kubernetes 1.36 locks PSI metrics to GA, catching resource stalls a CPU% dashboard can't see. Here's the worked example, the two ways the signal can lie, and the pre-flight checklist a bare-metal fleet needs before trusting it.

Kubernetes
infrastructure
self-hosting
security
+1
Kubernetes 1.36's HPA Can Now Scale to Zero: What It Actually Changes for Idle-App Billing
·Dora Noda·9 min

Kubernetes 1.36's HPA Can Now Scale to Zero: What It Actually Changes for Idle-App Billing

Kubernetes 1.36 finally defaults HPAScaleToZero on, but it only solves half the scale-to-zero problem. Here's the exact split, real cold-start numbers from Render and Fly.io, and a worked cost model for a self-hosted PaaS's dormant-app billing.

Kubernetes
PaaS
self-hosting
cost-optimization
+1
Kubernetes 1.36 Didn't Put DRA in GA — Here's What Shipped, and How to Run GPU-Aware Scheduling on Your Own Hetzner Fleet
·Dora Noda·8 min

Kubernetes 1.36 Didn't Put DRA in GA — Here's What Shipped, and How to Run GPU-Aware Scheduling on Your Own Hetzner Fleet

Kubernetes 1.36 didn't put Dynamic Resource Allocation into GA — that happened in 1.34. Here's what actually shipped for GPU scheduling, and how to get a real DRA-scheduled GPU node onto a self-hosted Cluster API fleet on Hetzner.

Kubernetes
self-hosting
PaaS
infrastructure
Kubernetes 1.36's Memory QoS Goes Tiered: What TieredReservation Actually Guarantees on a Multi-Tenant Node
·Dora Noda·8 min

Kubernetes 1.36's Memory QoS Goes Tiered: What TieredReservation Actually Guarantees on a Multi-Tenant Node

Kubernetes 1.36 lets a kubelet write hard memory.min protection for Guaranteed pods and soft memory.low for Burstable ones. Here's exactly what that stops a noisy neighbor from doing on a bin-packed multi-tenant node — and the two failure modes it still doesn't cover.

Kubernetes
PaaS
self-hosting
infrastructure
Kubernetes 1.36 Ships the Metric That Finally Proves Your Route Controller Isn't Wasting API Calls
·Dora Noda·8 min

Kubernetes 1.36 Ships the Metric That Finally Proves Your Route Controller Isn't Wasting API Calls

Kubernetes 1.36 adds a counter that proves whether your route controller is syncing on real node changes or wasting API calls on a timer. Here's what it measures, how to check if your Hetzner CCM exposes it, and a PromQL alert that catches a stuck node join before it becomes an outage.

Kubernetes
infrastructure
self-hosting
PaaS
+1
Kubernetes 1.35 Makes Supplemental Groups Strict: Closing the Shared-Volume Leak Hiding in Every Tenant Image's /etc/group
·Dora Noda·9 min

Kubernetes 1.35 Makes Supplemental Groups Strict: Closing the Shared-Volume Leak Hiding in Every Tenant Image's /etc/group

Kubernetes 1.35 lets a Pod ignore the supplemental groups baked into a container image's /etc/group — closing a quiet leak where an untrusted tenant image could silently gain access to another tenant's shared volume.

Kubernetes
security
self-hosting
PaaS
+1
Kompose Only Gets You 70-80% of the Way From docker-compose.yml to Kubernetes: Here's the Exact List of What's Missing
·Dora Noda·9 min

Kompose Only Gets You 70-80% of the Way From docker-compose.yml to Kubernetes: Here's the Exact List of What's Missing

A field-by-field inventory of what Kompose v1.38 converts automatically, what it only converts if you add non-standard labels, and what a git-push PaaS's own Compose importer would need to fill in instead.

Kubernetes
PaaS
self-hosting
infrastructure
+1
Istio's Ambient Multicluster Reaches Beta: What Sidecarless Cross-Cluster Mesh Actually Costs a Hetzner-Spanning Cluster API Fleet
·Dora Noda·9 min

Istio's Ambient Multicluster Reaches Beta: What Sidecarless Cross-Cluster Mesh Actually Costs a Hetzner-Spanning Cluster API Fleet

Istio 1.29 shipped ambient multicluster support at Beta. Here's the actual latency and control-plane cost of turning it on across a Cluster API fleet spread over Hetzner's separate locations — and the five gaps that keep it from being the default.

Kubernetes
self-hosting
infrastructure
PaaS
+1
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