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Sysadmin Tools 🇺🇦

@sysadmin_tools

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Sysadmin/DevOps tools, news and other interesting things from modern IT world.
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Sysadmin Tools 🇺🇦

3.88K subscribers

Sysadmin Tools 🇺🇦

Вышел перевод книги Брайана Кернигана «UNIX: A History And A Memoir»

#linux #book

1.28K viewsedited 11:37

Sysadmin Tools 🇺🇦

How to use relabeling in Prometheus and VictoriaMetrics

https://valyala.medium.com/how-to-use-relabeling-in-prometheus-and-victoriametrics-8b90fc22c4b2

#prometeus #victoriametrics #vm #prom #monitoring #observability

How to use relabeling in Prometheus and VictoriaMetrics

Prometheus supports relabeling, which allows performing the following tasks:

1.2K views12:27

Sysadmin Tools 🇺🇦

Forwarded from Sergei Chepkasov

Всем привет!
Провели воркшоп на гейзенбаге по тестированию производительности с gatling и gitlab, для воркшопа подготовлено множество материалов, которые могут помочь в самостоятельном изучении этих инструментов.
Все материалы доступны в публичном репозитории: https://gitlab.com/tinkoffperfworkshop
Первую часть воркшопа можно повторить самостоятельно по шагам из шпаргалки: https://gitlab.com/tinkoffperfworkshop/part-1/cheat-sheet
Во второй части созданы отдельные репозитории, в них также есть ридми с инструкциями: https://gitlab.com/tinkoffperfworkshop/part-2

Что есть интересного:
1. Разворачиваем окружение для тестов локально в контейнерах: influxdb, vector, loki, prometheus, cadvisor, portainer, grafana, gitlab-runner
2. Создаем скрипты gatling для различных протоколов: http, jdbc, grpc
3. Создаем CI джобы для gitlab
4. Подключаем агент в gitlab.com
5. Проводим и мониторим тесты

TinkoffPerfWorkshop · GitLab

Tinkoff performance workshop on Heisenbug

1.15K views17:16

Sysadmin Tools 🇺🇦

Make JSON greppable!

gron transforms JSON into discrete assignments to make it easier to grep for what you want and see the absolute 'path' to it. It eases the exploration of APIs that return large blobs of JSON but have terrible documentation.

https://github.com/tomnomnom/gron

#json #grep

GitHub - tomnomnom/gron: Make JSON greppable!

Make JSON greppable! Contribute to tomnomnom/gron development by creating an account on GitHub.

1.23K views18:22

Sysadmin Tools 🇺🇦

https://www.haproxy.com/blog/announcing-haproxy-2-3/

HAProxy Technologies

Announcing HAProxy 2.3

HAProxy 2.3 adds exciting features such as forwarding, prioritizing, and translating messages sent over the Syslog Protocol on both UDP and TCP, and much more.

2.16K views20:34

Sysadmin Tools 🇺🇦

IBM еще дышит на зло окружающим
https://www.enterpriseai.news/2020/11/05/ibm-expands-5g-cloud-ecosystem/

IBM Expands 5G Cloud Ecosystem

IBM continues to add to its roster of telecommunications industry partners readying 5G wireless rollouts extending to the network edge. The cloud vendor

1.17K views21:21

Sysadmin Tools 🇺🇦

Logz.io Announces the DevOps Pulse 2020, The Largest Survey in the Company’s History With Insights From Over 1,000 Engineers

https://aithority.com/it-and-devops/logz-io-announces-the-devops-pulse-2020/

Logz.io Announces the DevOps Pulse 2020, The Largest Survey in the Company’s History With Insights From Over 1,000 Engineers

Logz.io, the leading cloud-native observability platform for modern DevOps teams, announced the results of the DevOps Pulse 2020.

1.18K viewsedited 07:30

Sysadmin Tools 🇺🇦

An Overview of the Percona XtraDB Cluster Kubernetes Operator

https://severalnines.com/database-blog/overview-percona-xtradb-cluster-kubernetes-operator

#mysql #percona #cluster #k8s #kubernetes #operator

An Overview of the Percona XtraDB Cluster Kubernetes Operator

This blog post will test out the deployment of Percona XtraDB Cluster 8.0 in a containerized environment, orchestrated by the Percona XtraDB Cluster Kubernetes Operator on Google Cloud Platform (GCP).

1.61K views08:25

Sysadmin Tools 🇺🇦

Очень полезная инфа, если вы админ/devops и хотя бы немного умеете в #python

https://habr.com/ru/company/timeweb/blog/526818/

#kvm #devops #linux #kernel

Хост KVM в паре строчек кода. Примеры на C++ и на Python от эксперта Timeweb

Привет! Сегодня публикуем статью о том, как написать хост KVM. Мы увидели ее в блоге Serge Zaitsev, перевели и дополнили собственными примерами на Python для те...

2.58K views12:28

Sysadmin Tools 🇺🇦

VictoriaMetrics v1.46.0 is out! It includes various memory usage optimizations for vmagent and query engine.

https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.46.0

#prometheus #victoriametrics

Release v1.46.0 · VictoriaMetrics/VictoriaMetrics

Changes since v1.45.0

FEATURE: optimize requests to /api/v1/labels and /api/v1/label/<name>/values when start and end args are set.

FEATURE: reduce memory usage when query touches big num...

1.17K views19:19

Sysadmin Tools 🇺🇦

ClickHouse Capacity Estimation Framework

https://blog.cloudflare.com/clickhouse-capacity-estimation-framework/

#clickhouse #cloudflare

The Cloudflare Blog

ClickHouse Capacity Estimation Framework

We use ClickHouse widely at Cloudflare. It helps us with our internal analytics workload, bot management, customer dashboards, and many other systems.

1.25K views19:32

Sysadmin Tools 🇺🇦

Плейлист конференции "Arch Conf 2020"

Video: https://media.ccc.de/v/arch-conf-online-2020-6574-closing-talk-arch-linux-conf-in-review/playlist

Audio:
https://media.ccc.de/v/arch-conf-online-2020-6574-closing-talk-arch-linux-conf-in-review/audio

#linux #archlinux

media.ccc.de -
Playlist for
"Arch Conf 2020"

Video Streaming Portal des Chaos Computer Clubs

2.05K viewsedited 06:29

Sysadmin Tools 🇺🇦

🐘 Да, 2 года видео, но таки не советы остаются полезны и применимы и сейчас

https://youtube.com/watch?feature=emb_title&v=IFIXpm73qtk

#postgresql #sql #optimization #postgres

PostgreSQL Configuration for Humans / Alvaro Hernandez (OnGres)

HighLoad++ 2017

Тезисы:
http://www.highload.ru/2017/abstracts/3096.html

PostgreSQL is the world’s most advanced open source database. Indeed! With around 270 configuration parameters in postgresql.conf, plus all the knobs in pg_hba.conf, it is definitely…

2.22K views17:36

Sysadmin Tools 🇺🇦

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Chipmunk Log Analyzer & Viewer

chipmunk is a fast logfile viewer that can deal with huge logfiles (>10 GB). It powers a super fast search and is supposed to be a useful tool for developers who have to analyze logfiles.

https://github.com/esrlabs/chipmunk

#logs #log

1.49K viewsedited 03:47

Sysadmin Tools 🇺🇦

Sysadmin Tools 🇺🇦

https://github.com/cwida/duckdb

DuckDB – The Little OLAP Database That Could. TPC-DS Benchmark Results And First Impressions

http://bicortex.com/duckdb-the-little-olap-database-that-could-tpc-ds-benchmark-results-and-first-impressions

UPD:

доклад с FOSDEM

https://www.youtube.com/watch?v=nPDomZQ8jI4

#sql #sqlite #olap #nosql

1.19K viewsedited 04:18

Sysadmin Tools 🇺🇦

https://habr.com/ru/company/flant/blog/526702/

#werf #gitlab #sonarqube #qa

Запускаем тесты на GitLab Runner с werf — на примере SonarQube

Если в качестве инфраструктуры, где разворачивается приложение, выступает Kubernetes, можно сказать, что существует два способа запуска тестов (и других утилит для анализа кода) в CI/CD:...

2.11K viewsedited 07:19

Sysadmin Tools 🇺🇦

Forwarded from Флант | Специалисты по DevOps и Kubernetes

А также мы на днях обнаружили интересную статью с примером использования werf с GitHub Actions для решения инфраструктурной задачи по сбору логов для домашнего Kubernetes-кластера (MicroK8s): https://gievoiviktor.medium.com/%D0%BB%D0%B5%D0%B3%D0%BA%D0%BE%D0%B2%D0%B5%D1%81%D0%BD%D1%8B%D0%B9-%D1%81%D0%B1%D0%BE%D1%80%D1%89%D0%B8%D0%BA-%D0%BB%D0%BE%D0%B3%D0%BE%D0%B2-%D0%BD%D0%B0-%D0%BF%D1%80%D0%B8%D0%BC%D0%B5%D1%80%D0%B5-fluentd-%D0%B2-microk8s-34c92c16c2aa

Легковесный сборщик логов на примере FluentD в K8S и WERF

Занимаясь своим проектом в домашнем кластере построенным на MicroK8s я столкнулся с проблемой падения приложения если мой сборщик логов…

1.05K views07:46

Sysadmin Tools 🇺🇦

Dog

dog is a command-line DNS client, like dig. It has colourful output, understands normal command-line argument syntax, supports the DNS-over-TLS and DNS-over-HTTPS protocols, and can emit JSON.

https://github.com/ogham/dog

3.67K viewsedited 20:53

Sysadmin Tools 🇺🇦

https://cobbler.github.io

cobbler.github.io

Cobbler - Linux install and update server

1.22K views23:47

Sysadmin Tools 🇺🇦

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New version of #kubernetes-in-Kubernetes now has fully automated certificates generation including client-certificates, thanks #CertManager

https://github.com/kvaps/kubernetes-in-kubernetes

#k8s #kubernetes

1.25K viewsedited 04:04