Docker

Docker Healthchecks — Service Readiness and Dependencies in Compose

A practical guide to Docker healthchecks in Compose — define checks with test, interval, timeout, and start_period, use depends_on condition: service_healthy for ordered startup, and debug health state with docker inspect.

Docker Trivy Scanning — Automated Vulnerability Detection for Homelab Containers

A practical guide to running automated vulnerability scanning for Docker containers in your homelab — install Trivy, scan images for CVEs and secrets, set up systemd timers for weekly scans, and integrate with dashboards for actionable security reports.

Docker Network Troubleshooting — Diagnostics and Fixes for Container Connectivity

A practical guide to diagnosing and fixing Docker container networking problems — DNS timeouts, port conflicts, bridge network isolation, cross-host communication, and the netshoot toolkit for homelab deployments.

Linux Disk I/O Tuning — IO Schedulers, Mount Options, and cgroup Throttling

A practical guide to Linux disk I/O performance tuning for homelab servers — IO scheduler selection for NVMe, SSD, and HDD, mount option optimization, real-time monitoring with iostat and ioping, and container IO throttling with cgroup v2.

NFS Shared Storage — Centralized Homelab with Proxmox and Docker

Set up centralized NFS shared storage for your Proxmox homelab with Docker volume mounts, LXC bind mounts, and performance tuning — practical configs for backup storage, media libraries, and container data.

Caddy Reverse Proxy Docker — Automatic HTTPS and Zero-Downtime Reloads

Set up Caddy as a Docker reverse proxy for your homelab — automatic Let’s Encrypt HTTPS with zero config, reusable Caddyfile snippets, zero-downtime reloads, Cloudflare DNS-01 wildcards, HTTP/3 support, and production security hardening.

Docker Compose Environment Variables — .env, Substitution, and Secrets

Master Docker Compose environment variables — understand .env file scoping, variable substitution syntax with defaults and errors, env_file vs environment blocks, and when to use Docker secrets over env vars for sensitive data in homelab deployments.

K3s Kubernetes Cluster — Lightweight Deployment for Your Homelab

Deploy a production-grade K3s Kubernetes cluster in your homelab on Proxmox VMs — multi-node setup, Longhorn persistent storage, MetalLB load balancing, Traefik ingress, and migrating existing Docker Compose workloads.

Docker GPU Acceleration — NVIDIA Container Toolkit for Homelab

Set up GPU acceleration in Docker containers with the NVIDIA Container Toolkit — from installation to real workloads like Ollama AI inference, Jellyfin hardware transcoding, and Frigate object detection.

Step CA + ACME — Internal TLS Certificates for Your Homelab

Run your own internal Certificate Authority with step-ca in Docker, issue TLS certificates via ACME, integrate with Traefik for automatic renewal, and distribute the root CA to all your devices — no more self-signed certificate warnings.