640 posts tagged with "Kubernetes"
Container orchestration, Cluster API, and self-hosted control planes
E2B Serves 88% of the Fortune 100. What Breaks at That Scale Is Idle Billing and Resume Latency
A 30-minute agent session costed three ways shows session-scoped sandbox billing charges mostly for model think time, while suspend/resume latency stacks across dozens of tool calls. What a self-hosted PaaS should design differently.
Kratix Promises Are Platform-as-Product: What Workflow Retries and Compound Promises Mean for a Fleet That Hand-Rolls Operators
A July 2026 hands-on replaced an entire ops ticket queue with three Kratix promises serving in 30 seconds. How the promise model works, what SKE v0.45.0's workflow retries changed, what compound promises buy a Cluster API fleet's preview environments and quotas, and the threshold where promises beat shell scripts.
50 Pull Requests, 50 Live Environments: What Preview-at-Scale Really Costs on Railway vs Owned Hardware
Fifty concurrent pull-request previews cost about $585 a month on Railway's per-minute meter versus $30-95 on a Hetzner-backed Cluster-API fleet. A worked comparison of per-namespace accounting, image-cache sharing, Gateway API route churn, and the probe design that decides whether idle previews actually sleep.
Radar's 15-Second Local-First Kubernetes UI: Replacing the SaaS Dashboard Without Losing GitOps or Network Visibility
Skyhook's Radar is a free Apache-2.0 Kubernetes UI that runs as a single local binary off your kubeconfig. A head-to-head verdict against Lens, Headlamp, and k9s on GitOps depth, network visibility, and trust boundary — plus where a local UI stops being enough for a team fleet.
Hard Multi-Tenancy for Agent Workloads: What Apple's Kata plus VirtualClusters Recipe Costs
Apple's KubeCon recipe pairs per-tenant virtual control planes with Kata microVMs so untrusted agent code never shares a kernel with production tenants. The bill: about a second of cold start and 30-100 MB per sandbox, plus one small control plane per tenant.
Crossplane Graduates: AI Needs APIs, Not UIs — and What That Means for Your Self-Hosted PaaS
Crossplane's CNCF graduation validates the control-plane-first thesis: AI agents need declarative, reconciled APIs, not dashboards. Upbound's Modelplane proves it across clouds — but a fleet you own needs depth, not breadth.
Your PaaS Thought One Developer Meant One Deploy Queue. Then the Agent Fleet Showed Up.
A third of Cursor's own merged PRs are opened by autonomous cloud agents, and GitHub merged 43.2M PRs a month in 2025. One developer's agent fleet can now exhaust a whole account's daily deploy quota before lunch — here is the burst math and the four pipeline fixes: build queues, preview caps, isolated preview data, and merge triage.
Kubernetes 1.37 Kills the Last Idle Pod: Native HPA Scale-to-Zero vs KEDA for Sleeping Apps
Kubernetes 1.37 graduates HPA scale-to-zero to beta and enables it by default: queue workers can shed every replica with minReplicas 0 and no KEDA. HTTP apps still need a buffering layer, and beta isn't ready for a tenant SLA — the head-to-head, the idle-bill math, and the checklist.
MCP Has 10,000 Servers but Three Production Gaps: Identity Propagation, Timeout Budgets, and Structured Errors for Deploy Agents
Ten thousand MCP servers and 97 million monthly SDK downloads made connecting agents to tools trivial — but an agent that can deploy and roll back production needs scoped identity, timeout budgets, and machine-readable errors first. This post designs that deploy surface, tool by tool.