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765 posts tagged with "Infrastructure"

Blockchain infrastructure and node services

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Ceph Tentacle's FastEC vs MinIO's Maintenance Mode: What Self-Hosting Block and Object Storage Looks Like on a Cluster-API Fleet in 2026
·Dora Noda·9 min

Ceph Tentacle's FastEC vs MinIO's Maintenance Mode: What Self-Hosting Block and Object Storage Looks Like on a Cluster-API Fleet in 2026

Ceph Tentacle's FastEC cuts erasure-coding overhead for small block I/O by 2-3x. Worked out on real Hetzner-class hardware against 3x-replicated Longhorn, plus the January 2026 production incident that shows exactly how not to enable it.

self-hosting
PaaS
infrastructure
engineering
The Deploy That Pointed at Nothing: Firetiger's CI Race Condition and the One Check That Would Have Stopped It
·Dora Noda·9 min

The Deploy That Pointed at Nothing: Firetiger's CI Race Condition and the One Check That Would Have Stopped It

A canceled CI build fooled Firetiger's deploy pipeline into shipping a container image ID that was never built, triggering an 8-hour ingest outage. Here's the exact failure chain, and the one registry check that would have caught it.

self-hosting
PaaS
infrastructure
engineering
CVE-2026-50566: How Namespace-Scoped RBAC Became a 9.9 Node Compromise in Fission
·Dora Noda·9 min

CVE-2026-50566: How Namespace-Scoped RBAC Became a 9.9 Node Compromise in Fission

A routine namespace-scoped RBAC grant let a Fission tenant escalate to node compromise — why RBAC was never a sandbox boundary, and what it means for platforms scheduling tenant code on shared nodes.

security
infrastructure
self-hosting
cybersecurity
+1
Gateway API on kind: The Local Reproduction Recipe for Ingress Bugs You Can't Debug on Bare Metal
·Dora Noda·9 min

Gateway API on kind: The Local Reproduction Recipe for Ingress Bugs You Can't Debug on Bare Metal

The stock kubernetes.io recipe for running Gateway API on kind gets you one working HTTPRoute. Here's how to extend it to reproduce the three tenant ingress bugs that actually page a self-hosted PaaS's on-call, before they hit bare metal.

infrastructure
self-hosting
PaaS
tutorial
Do You Still Need kubectl for Cluster API Fleet Management? Headlamp's New Plugin Says Mostly No
·Dora Noda·9 min

Do You Still Need kubectl for Cluster API Fleet Management? Headlamp's New Plugin Says Mostly No

Kubernetes retired its Dashboard and pointed operators at Headlamp's new Cluster API plugin — here's exactly what it replaces, what still needs kubectl and GitOps, and why bex should adopt it instead of building a bespoke fleet view.

self-hosting
PaaS
infrastructure
engineering
Hetzner's GEX131 GPU Server: What €889/Month for a Blackwell RTX PRO 6000 Buys Against AWS's g5.xlarge
·Dora Noda·9 min

Hetzner's GEX131 GPU Server: What €889/Month for a Blackwell RTX PRO 6000 Buys Against AWS's g5.xlarge

Hetzner's GEX131 costs more per month than AWS's g5.xlarge — but a third as much per gigabyte of VRAM. Here's the worked cost-per-GB math across on-demand, spot, and reserved AWS pricing, plus what 96GB of VRAM actually unlocks that 24GB can't.

self-hosting
PaaS
cost-optimization
infrastructure
+1
K3s vs K0s Under Cluster API: Which Lightweight Distro Actually Fits a Hetzner Fleet's Machine Lifecycle
·Dora Noda·9 min

K3s vs K0s Under Cluster API: Which Lightweight Distro Actually Fits a Hetzner Fleet's Machine Lifecycle

Most k3s-vs-k0s comparisons are written for a single Raspberry Pi. Under Cluster API on Hetzner, the real fork is where each distro puts your control plane — and it changes your upgrade and cert-rotation story more than either binary's size does.

self-hosting
PaaS
infrastructure
engineering
Kamaji Turns Kubernetes Control Planes Into Pods — But It Only Cuts the Control-Plane Bill, Not the Worker-Node One
·Dora Noda·9 min

Kamaji Turns Kubernetes Control Planes Into Pods — But It Only Cuts the Control-Plane Bill, Not the Worker-Node One

A worked cost model for Kamaji's Cluster API control-plane provider: what running tenant control planes as pods actually removes from a self-hosted fleet's bill, what it leaves untouched, and where its shared-kernel isolation stops being enough.

PaaS
self-hosting
infrastructure
cost-optimization
+1
Kamal Supports Cloud Native Buildpacks, Not Just Dockerfiles: What That Means for bex's Own Build Path
·Dora Noda·9 min

Kamal Supports Cloud Native Buildpacks, Not Just Dockerfiles: What That Means for bex's Own Build Path

Kamal, 37signals' zero-daemon deploy tool built specifically to avoid PaaS abstraction, now ships a pack builder option for Cloud Native Buildpacks alongside its default Dockerfile path. Here's the actual config, why a minimal-abstraction tool reached for a CNCF spec instead of writing its own builder, and what it means for bex's default.

self-hosting
PaaS
infrastructure
engineering
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