Istio vs. Envoy Gateway: Gateway API on Kubernetes

Comparing Istio and Envoy Gateway as Gateway API implementations: mTLS, egress, Cilium, managed cloud specifics (AKS, GKE, OVH MKS), and real client IP.

· 19 minutes reading time

Envoy Gateway v1.7: Global Rate Limiting with a Custom ratelimit Service

How to wire envoyproxy/ratelimit as a self-hosted service into Envoy Gateway v1.7 using EnvoyPatchPolicy — three xDS patches, namespace-admin self-service, and the pitfalls to avoid.

· 10 minutes reading time

haproxy-spoe-rs: Deployment

Deploying the haproxy-spoe-rs SPOA agent in production — container image, podman-compose, Kubernetes, HAProxy configuration, health checking, logging, and systemd.

· 8 minutes reading time

haproxy-spoe-rs: A Rust SPOA Agent Library for HAProxy

Building a HAProxy Stream Processing Offload Agent (SPOA) library in Rust — zero-dependency async design, mpsc write batching, 95.9% test coverage, and 2.8–4.9× higher throughput than the Go reference implementation.

· 14 minutes reading time

Running pdns_recursor as a root-independent validating resolver

How to configure PowerDNS Recursor 5.4 to resolve directly against TLD name servers without depending on the root name servers at runtime, using a local root.zone file loaded via zonetocaches — including DNSSEC validation, trust anchor setup, and the race condition that prevents it from working without a hint file.

· 7 minutes reading time

Running a validating DNS recursor from the root zone with Hickory DNS

How to run Hickory DNS as a full recursive resolver starting from the root zone, with DNSSEC validation, TLS-encrypted upstream connections, Happy Eyeballs, and Prometheus metrics — including all configuration options added in the recurser-from-root-zone branch.

· 12 minutes reading time

vigil-log-relay: Kubernetes Log Collection Without a DaemonSet

vigil-log-relay streams logs from Kubernetes pods, HTTP endpoints, or Unix sockets and forwards them as ndjson to any TCP-capable log collector. No DaemonSet, no node-level access, no filesystem mounts — just a single binary with a namespace-scoped ServiceAccount.

· 10 minutes reading time

vigil-rs: A Rust Service Supervisor for Containers

vigil-rs is a PID 1 / container init daemon written in Rust. It supervises multiple processes, runs health checks, fires HTTP(S) alerts on state transitions, and exposes a REST API over a Unix socket with native zombie-reaping and per-service stop signals.

· 18 minutes reading time

How does SNI Routing work in HAProxy

Learn how HAProxy container uses TLS Server Name Indication (SNI) to route encrypted TCP connections without decrypting them — enabling multiple services like Nextcloud and XMPP to share port 443.

· 4 minutes reading time

mergelog-rs: Rewriting a Year-2000 C Tool in Rust — and Making It 2.26× Faster

A Rust rewrite of mergelog 4.5, a C tool from 2000 that merges Apache log files chronologically. Six optimizations — a k-way heap merge, a hand-rolled CLF parser, String buffer reuse, mimalloc, 4 MiB read buffers with SIMD newline search, and zstd support — took the Rust binary from slower than the original to 2.26× faster.

· 9 minutes reading time