Sysadmin Tools 🇺🇦

When Metrics Leak Secrets: Kubernetes CTF Lessons https://programmerprodigy.code.blog/2025/09/01/when-metrics-leak-secrets-kubernetes-ctf-lessons #k8s #kubernetes #security #grafana #victoriametrics #victorialogs

OpsiMate

The all-in-one platform for managing and controlling your organization - Everything in one place.

https://github.com/OpsiMate/OpsiMate #monitoring #observability #k8s #kubernetes #docker #linux

Flint

Lightweight tool for managing linux virtual machines

https://github.com/ccheshirecat/flint #kvm #go #virtualisation

DocumentDB and the Future of Open Source https://redmonk.com/sogrady/2025/09/02/documentdb #postgres #mysql #documentdb #mongodb

Unifying real-time analytics and observability with OpenTelemetry and ClickStack https://clickhouse.com/blog/instrumenting-your-app-with-otel-clickstack #clickhouse #pypi #observability #opentelemetry

OpenTelemetry Demo with VictoriaMetrics Stack It's a fork of the OpenTelemetry demo that provides opentelemetry-instrumented demo applications using VictoriaMetrics Stack: - VictoriaMetrics instead of Prometheus - VictoriaLogs instead of OpenSearch - VictoriaTraces instead of Jaeger #opentelemetry #opensearch #elasticsearch #victoriametrics #victorialogs #victoriatraces #observability

D2 diagrams

D2 is a modern diagram scripting language that turns text to diagrams

https://github.com/terrastruct/d2 #diagrams #scheme #documentation

Pogocache

fast caching software built from scratch with a focus on low latency and cpu efficency

https://github.com/tidwall/pogocache #redis #memcached #valkey #dragonfly #garnet

The 67-Second OpenTelemetry Problem https://getlawrence.com/blog/The-67-Second-OpenTelemetry-Problem #opentelemetry

Minisign

A dead simple tool to sign files and verify digital signatures.

https://github.com/jedisct1/minisign #security #crypto #pgp #gpg #cryptography #signatures

How much power does gzip save on IoT web access? https://bitbanksoftware.blogspot.com/2025/06/how-much-power-does-gzip-save-on-iot.html #iot #gzip #benchmark #esp32

The Kubernetes v1.34 release was announced about 10 hours ago. Its codename, Of Wind & Will (O' WaW), “honours the winds that have shaped us, and the will that propels us forward.” As the official blog post states, “This release consists of 58 enhancements. Of those enhancements, 23 have graduated to Stable, 22 have entered Beta, and 13 have entered Alpha.” This overview covers all new alpha features in detail. #news #releases

Gonzo

The Go based TUI log analysis tool

https://github.com/control-theory/gonzo #logs #tui #golang #opentelemetry

Alerting best practices https://victoriametrics.com/blog/alerting-best-practices #sre #devops #observability #monitoring

SystemD Service Hardening https://roguesecurity.dev/blog/systemd-hardening #linux #systemd #security

Announcing Neki — sharded Postgres by the team behind Vitess https://planetscale.com/blog/announcing-neki #postgres #vitess #planetscale

Stop Using the Wrong CNI in 2025: Flannel vs Calico vs Cilium https://pdelarco.medium.com/stop-using-the-wrong-cni-flannel-vs-calico-vs-cilium-in-2025-c11b42ce05a3 #k8s #kubernetes #network #cilium

Large-Scale Logging Made Easy https://www.youtube.com/watch?v=mhMgbMhXv80 #victorialogs #observability #logging

Copacetic

copa is a CLI tool written in Go and based on buildkit that can be used to directly patch container images without full rebuilds. copa can also patch container images using the vulnerability scanning results from popular tools like Trivy.

https://github.com/project-copacetic/copacetic #docker #podman #container #buildkit #security

NGINX Introduces Native Support for ACME Protocol  https://blog.nginx.org/blog/native-support-for-acme-protocol #nginx #ssl #letsencrypt