505 posts tagged with "Kubernetes"
Container orchestration, Cluster API, and self-hosted control planes
Your Kubernetes Cluster Already Negotiates Post-Quantum TLS. Your Edge Probably Doesn't
Kubernetes v1.33 already negotiates hybrid post-quantum TLS on the control plane — but your ingress, tenant certificates, and secrets layer each need their own verdict. A layer-by-layer readiness inventory with the CNSA 2.0 deadlines that set the pace.
Self-Hosted GitHub Actions Runners vs Depot vs GitHub: The Real Math for Teams That Own Their Machines
GitHub charges $0.006 per CI minute, Depot charges $0.004, and a $60 dedicated server charges nothing per minute. The breakeven math at three team sizes, plus the security and maintenance costs the rate card hides.
22 Months, a $250 Bounty, and a Maintainer's No: What Coolify's Kubernetes Standoff Reveals About Multi-Machine Support
Coolify's most-requested feature sat open for 22 months behind a $250 bounty before maintainers said no — then a volunteer built it anyway. A dated account of the standoff, why the refusal was rational, and what Coolify, Dokploy, and CapRover concretely offer at machine number two.
CSI Changed Block Tracking Hits Beta: Incremental Tenant-Volume Backups Without the Full-Copy Tax
Kubernetes' September 14 CBT beta post standardizes incremental volume backups on a single API: backup windows scale with churn instead of volume size. What the beta changes, which drivers actually support it, and the checklist before a self-hosted fleet promises it to tenants.
dFlow Is Dokku With a Second Server: Where SSH Orchestration Stops and Reconciliation Starts
dFlow layers multi-server SSH orchestration and Railpack builds over plain Dokku — but no reconciliation, no self-healing, and no machine lifecycle. What that buys on a handful of Hetzner boxes, and where a Cluster API fleet takes over.
Fly.io Turned Off Its GPUs on August 1: Where GPU-Backed Tenants Go Now (With Real Numbers)
Fly.io shut off GPU Machines on August 1, 2026 after cutting its free tier and 17 regions. A workload-by-workload cost comparison of the five destinations — Modal, RunPod, Koyeb, hyperscaler serverless GPUs, and owned Hetzner hardware — with the bin-packing math that decides between them.
Heroku to Kubernetes in a Weekend: The $140-to-€11 Migration Playbook
Salesforce put Heroku in sustaining mode in February 2026. This weekend runbook moves a $140/month web + worker + Postgres + Redis stack to a €11.37/month Cluster API fleet on Hetzner — commands, cutover sequence, both invoices, and the rollback plan.
From Heroku to Render at 2,800 RPS: What a Rails Migration's Latency Trade-Off Reveals Before You Self-Host
A 2,800-RPS Rails app makes the Heroku-to-Render decision concrete: routing, timeouts, queueing math, and incident fate, plus a checklist for stopping at Render or self-hosting instead.
Interview Kubernetes vs Production Kubernetes: What a Viral Essay Gets Right About Running Clusters on Owned Machines
A viral June 2026 essay argues Kubernetes interviews test what you can define, not what you can operate — mapped here onto owned hardware: PDBs, memory limits, DNS failure modes, and five scenario questions to hire by.