Sysadmin Tools 🇺🇦

Cerberus

Cerberus lets you keep your metrics, logs, and traces in ClickHouse and go on querying them from Grafana with PromQL, LogQL, and TraceQL — as if Prometheus, Loki, and Tempo were still doing the work.

https://github.com/tsouza/cerberus #observability #monitoring #prometheus #clickhouse #loki #grafana #otel #opentelemetry

Postgres Is Enough

A curated directory of PostgreSQL extensions and tools that can replace specialized databases. Before adding Redis, Elasticsearch, Kafka, or MongoDB to your stack, see what Postgres can do.

https://github.com/agoodway/postgresisenough #postgres #redis #kafka #analytics #api #search #database #nosql #mongodb

Introducing kiac: Real Kubernetes Nodes on Your Mac, Each Its Own Lightweight VM https://blog.kubesimplify.com/introducing-kiac-kubernetes-in-apple-containers #k8s #kubernetes #containers

PgDog

PgDog is a proxy for scaling PostgreSQL. It supports connection pooling, load balancing queries and sharding entire databases. Written in Rust, PgDog is fast, secure and can manage thousands of connections on commodity hardware.

https://github.com/pgdogdev/pgdog #postgres #sql #proxy #database #rust

ArcadeDB

Multi-Model Database, one DBMS that supports SQL, Cypher, Gremlin, HTTP/JSON, MongoDB and Redis. ArcadeDB is a conceptual fork of OrientDB, the first Multi-Model DBMS. ArcadeDB supports Vector Embeddings.

https://github.com/ArcadeData/arcadedb #observability #monitoring #logs #metrics #tsdb #sql #nosql

We’re excited to introduce opensource vmestimator, a new component in the VictoriaMetrics ecosystem. vmestimator measures metrics cardinality across arbitrary label dimensions and exposes the results as Prometheus-compatible metrics. It helps to understand where cardinality comes from, track how it evolves over time, and build early-warning alerts before cardinality becomes a problem. If you’re operating Prometheus-compatible monitoring systems and want realtime visibility into metric cardinality, give vmestimator a try. We’d love to hear your feedback and learn more about your use cases. Read more about its design and configuration in the documentation, or explore it yourself in the playground.

Running microVMs in Proxmox VE, The Easy Way https://taoofmac.com/space/blog/2026/06/18/1845 #proxmox #kvm #microvm #pve

Getting Nginx logs into Victoria-Logs https://dan.langille.org/2026/06/17/getting-nginx-logs-into-victoria-logs/ #freebsd #nginx #victorialogs #logs

From ClickHouse to RocksDB: How We Rebuilt Solana’s Archival Layer https://www.helius.dev/blog/migrating-from-clickhouse-to-rocksdb #clickhouse #rockdb

Deploying k3s on Hetzner Cloud on Private Network with Cluster Autoscaling https://community.hetzner.com/tutorials/deploy-k3s-on-hetzner-with-autoscaling #k8s #kubernetes #k3s #hetzner #cloud

Warpgate

Fully transparent SSH, HTTPS, Kubernetes, MySQL and Postgres bastion/PAM that doesn't need additional client-side software.

https://github.com/warp-tech/warpgate #wireguard #ssh #security #firewall #vpn

Nanotdb

Single-binary observability, time-series database, and built-in dashboard for Raspberry Pi, edge devices, and local metrics.

https://github.com/aymanhs/nanotdb #timeseries #db #monitoring #observability

VictoriaTraces: Recording Rules, Metrics, and Alerts from Trace Spans https://rtfm.co.ua/en/victoriatraces-recording-rules-metrics-and-alerts-from-trace-spans #tracing #observability #victoriatraces #alerts #monitoring #vmalert

We replaced Redis with MySQL for inventory reservations—and it scaled https://shopify.engineering/scaling-inventory-reservations #mysql #redis # shopify

VictoriaTraces: Tracing, Observability та OpenTelemetry https://rtfm.co.ua/draft-opentelemetry-an-overview-observability-ta-tracing-z-victoriatraces/ #Grafana #Kubernetes #monitoring #observability #OpenTelemetry #VictoriaLogs #VictoriaMetrics #VictoriaTraces

Log Aggregation With VictoriaLogs, SystemD, and FluentBit https://blog.devenphillips.dev/posts/log-aggregation-using-victoria.html #victorialogs #traefik #observability #perses #fluentbit #logs

OpenTelemetry: OTel Collectors in Kubernetes and VictoriaMetrics Stack integration https://rtfm.co.ua/en/opentelemetry-otel-collectors-in-kubernetes-and-victoriametrics-stack-integration #opentelemetry #otel #k8s #kubernetes #victoriametrics #observability

Lies, damned lies, and Elastic's benchmarks https://www.gouthamve.dev/lies-damned-lies-and-elastics-benchmarks #elasticsearch #clickhouse #prometheus #benchmarks

Linux 7.0.6 Released To Finish Mitigating the Dirty Frag Vulnerability https://www.phoronix.com/news/Linux-7.0.6-Released

30x faster than Prometheus: How we rebuilt Elasticsearch as a leading columnar metrics datastore https://www.elastic.co/search-labs/blog/elasticsearch-columnar-metrics-engine-30x-faster-prometheus #elasticsearch #clickhouse #mimir #prometheus #tsdb