Tutorials
In-depth technical tutorials, guides, and infrastructure best practices.
Fix SecretStore, Auth, and Sync Failures in External Secrets Operator
Fix External Secrets Operator errors: SecretStore not Ready, provider auth failures, missing keys, stale secrets, refresh issues, and RBAC problems.
How to Back Up K3s with Velero, Kopia, and S3-Compatible Storage
How to back up K3s with Velero and Kopia file-system backup, using S3-compatible storage, scheduled retention, and namespace-level restore testing.
Future of VPS Hosting Trends 2025-2030
Explore the future of VPS hosting from 2025 to 2030. How trends like AI automation, edge computing, stronger security, containerization, and greener infrastructure are expected to reshape VPS services.
How to Install Longhorn on K3s with Dedicated NVMe Storage
Install Longhorn on a multi-node K3s cluster with dedicated NVMe disks, replicas, StorageClasses, failover testing, and an S3 backup target.
Kubernetes Gateway API: Fix Routes, ReferenceGrant, and 404 Errors
Fix Kubernetes Gateway API errors. This guide covers HTTPRoute, TLSRoute, TCPRoute, ReferenceGrant, and 404/503 fixes using real status conditions and kubectl commands.
cert-manager Troubleshooting: Orders, Challenges, and Renewal Failures
Fix cert-manager errors: stuck Certificates, failed Orders, HTTP-01/DNS-01 Challenges, webhook errors, and renewal issues with kubectl and cmctl.
How to Install Kyverno 1.19 and Secure Kubernetes Workloads with CEL
Use Kyverno CEL policies to block privileged Pods, require non-root users, and allow trusted images.
Automate Kubernetes Secret Rotation with ESO and OpenBao
Self-host your Kubernetes secrets pipeline with ESO 2.8 and OpenBao. Covers install, auth setup, templating, and zero-touch secret rotation.
Migrate from Kubernetes Ingress to Gateway API on a K3s Cluster
Follow a step-by-step guide to move from Kubernetes Ingress to Gateway API v1.6 on K3s using Cilium, with TLS, redirects, TCPRoute, and UDPRoute.
Set up Cert-Manager, DNS-01, and Gateway API on K3s
Set up cert-manager 1.21 on K3s: issue wildcard Let's Encrypt certificates using DNS-01, connect them to a Gateway API resource, and verify that renewals happen automatically before certificates expire.
Self-Hosting OpenBao on Ubuntu: TLS, Raft Storage & Backups
Set up an OpenBao server with HTTPS, integrated Raft storage, access policies, authentication, Auto Unseal planning, and tested snapshot recovery.
Self-Host Sentry with Docker for App Error Tracking and Performance Monitoring
Want full control over your error tracking? Learn how to self-host Sentry with Docker to catch bugs and monitor app performance on your own server.