Forwarded from Патчкорд
OSPF шпаргалки, качественно и количественно.
Mom, Network Engineer, Juniper Ambassador
OSPF SUMMARY
OSPF PACKET TYPES HELLO PACKETS Adjacencies formation: An adjacency could fail if there is a mismatch of any of the following parameters: MTU (stuck in exstart) Network address Subnet mask Hello in…
Forwarded from Мониторим ИТ
На Медиуме есть автор Стив Мушеро (Steve Mushero), который много пишет о SRE и о подходах к мониторингу по этой методологии. Здесь он пишет про золотые сигналы SRE (Latency, Traffic, Errors, and Saturation), методики USE и RED, но есть и статьи о метриках, которые он рекомендует собирать в контексте SRE по конкретным элементам систем. Ниже подборка таких статей.
Метрики балансировщика (AWS ALB/ELB, HAProxy)
Метрики веб-серверов (Apache & Nginx)
Метрики серверов приложений (PHP, FPM, Java, Ruby, Node, Go, Python)
Метрики серверов баз данных (MySQL & AWS RDS и AWS Aurora)
Метрики Линукс-серверов (Linux)
Метрики балансировщика (AWS ALB/ELB, HAProxy)
Метрики веб-серверов (Apache & Nginx)
Метрики серверов приложений (PHP, FPM, Java, Ruby, Node, Go, Python)
Метрики серверов баз данных (MySQL & AWS RDS и AWS Aurora)
Метрики Линукс-серверов (Linux)
Forwarded from DevOps&SRE Library
Case Study: IT Modernization at Tidepool, an 8 part series
https://www.solo.io/blog/case-study-it-modernization-at-tidepool-an-8-part-series
Part 1: Migrating to Kubernetes - https://medium.com/@derrickburns/modernizing-tidepool-part-1-migrating-to-kubernetes-e3361379a3d6 -
https://www.solo.io/blog/case-study-it-modernization-at-tidepool-an-8-part-series
Part 1: Migrating to Kubernetes - https://medium.com/@derrickburns/modernizing-tidepool-part-1-migrating-to-kubernetes-e3361379a3d6 -
How they chose cloud hosted Kubernetes, migrating from Docker Compose to Kubernetes and the tools used to help the process.
Part 2: API Gateway - https://medium.com/@derrickburns/modernizing-tidepool-part-2-api-gateway-c6597b160fca - Discusses the required functionality, selection criteria and migration process from a custom solution to Gloo, our Kubernetes native API gateway built with Envoy Proxy.
Part 3: Continuous Delivery with GitOps - https://medium.com/@derrickburns/modernizing-tidepool-part-3-continuous-delivery-with-gitops-5b9c3b20c119 - As a way to manage implementing change to their running services, this article digs how GitOps is different than traditional configuration management and ideal for Kubernetes.
Part 4: Secrets Management - https://medium.com/@derrickburns/modernizing-tidepool-part-4-secrets-management-219db93aa809 - This post specifically addresses how they protect the system secrets that are used to encrypt data or verify identity within the context of their new Kubernetes environment.
Part 5: Using a Service Mesh - https://medium.com/@derrickburns/modernizing-tidepool-part-5-using-a-service-mesh-cd62788d3ec0 - As a healthcare company, HIPAA requires that all communication of protected health information (PHI) must be encrypted at flight and rest. Tidepool looked to Linkerd service mesh for mTLS across the intra-cluster communications.
Part 6: Migrating to a Hosted Mongodb - https://medium.com/@derrickburns/modernizing-tidepool-part-6-migrating-to-a-hosted-mongodb-dcd17ecbafb8 - Already a MongoDB user, the modernization initiative had the team take a fresh look at the performance, reliability and operational efficiency of their database as it has grown to over 2B records. This post details the migration from a self-hosted to a managed service from MongoDB.
Part 7: Logging - https://medium.com/@derrickburns/modernizing-tidepool-part-7-logging-aa3c9eff197c - All systems require observation and access to the logs created to understand what’s happening, especially when issues arise that need to be debugged. This post shows how the team has set up their logging systems today, their approach to looking at the right data, and how they are continuing to evolve.
Part 8: Provisioning - https://medium.com/@derrickburns/modernizing-tidepool-part-8-provisioning-6bdbe9519e0a - For anyone running Kubernetes in production or more than one cluster, this post details a provisioning process and available tools that can help with templating.Forwarded from DevOps&SRE Library
Regular Expressions for Regular Folk
https://refrf.shreyasminocha.me
This is an experimental “book” about regular expressions. It is largely visual and example-based, as opposed to most regex resources I found while I was learning. I also attempted to choose test cases that highlight some common gotchas. I think it’ll be worth your time.
https://refrf.shreyasminocha.me
Forwarded from Технологический Болт Генона
Доклад "The Path to GitOps" с демо на DigitalOcean (демо с ~21:30)
https://www.youtube.com/watch?v=M8xsdMKyxXQ
Слайды
https://docs.google.com/presentation/d/1yj0TIpr2pgw7_-6ABb1yc3274pCZkoz90LWau6kku58
Код демо
https://github.com/alghanmi/workflows-demo
Pipelines are a traditional component of CI/CD processes in development environments and a key component of DevOps practices. As dependencies, microservices and cloud-provider requirements grow, pipelines are becoming monolithic. In this talk, we will discuss and demonstrate how to migrate monolithic pipelines to a declarative GitOps-enabled Workflows that treat your individual CD activities as shareable blocks using Jenkins, Argo Flux and Kubernetes.
https://www.youtube.com/watch?v=M8xsdMKyxXQ
Слайды
https://docs.google.com/presentation/d/1yj0TIpr2pgw7_-6ABb1yc3274pCZkoz90LWau6kku58
Код демо
https://github.com/alghanmi/workflows-demo
YouTube
The Path to GitOps
Talk by Rami Al-Ghanmi, Miguel Zuniga
https://www.socallinuxexpo.org/scale/18x/presentations/path-gitops
Pipelines are a traditional component of CI/CD processes in development environments and a key component of DevOps practices. As dependencies, microservices…
https://www.socallinuxexpo.org/scale/18x/presentations/path-gitops
Pipelines are a traditional component of CI/CD processes in development environments and a key component of DevOps practices. As dependencies, microservices…
Forwarded from Находки в опенсорсе
This extension integrates Draw.io into #vscode
Features
- Edit .drawio or .dio files in the Draw.io editor, as xml or both.
- Edit .drawio.svg files with embedded Draw.io diagrams (might be slow for diagrams with > 400 nodes).
- To create a new diagram, simply create an empty .drawio or .drawio.svg file and open it!
.drawio.svg are valid .svg files.
- Uses an offline version of Draw.io by default.
- An online Draw.io url can be configured.
- A Draw.io theme can be selected.
https://github.com/hediet/vscode-drawio
#ts #docops
Features
- Edit .drawio or .dio files in the Draw.io editor, as xml or both.
- Edit .drawio.svg files with embedded Draw.io diagrams (might be slow for diagrams with > 400 nodes).
- To create a new diagram, simply create an empty .drawio or .drawio.svg file and open it!
.drawio.svg are valid .svg files.
- Uses an offline version of Draw.io by default.
- An online Draw.io url can be configured.
- A Draw.io theme can be selected.
https://github.com/hediet/vscode-drawio
#ts #docops
Forwarded from Находки в опенсорсе
rssfs: A RSS reader as a file system
Are you unsure how to read RSS feeds? Why don't you just mount them? What does this software do?
It will mirror RSS and Atom feeds as file systems. Example file system structure for one feed with two articles:
https://github.com/dertuxmalwieder/rssfs
#go
Are you unsure how to read RSS feeds? Why don't you just mount them? What does this software do?
It will mirror RSS and Atom feeds as file systems. Example file system structure for one feed with two articles:
/tmp/mnt/rssfs/Open Source Feed/Hello World.html
/tmp/mnt/rssfs/Open Source Feed/Second Article.html
https://github.com/dertuxmalwieder/rssfs
#go
Материалы по курсу slurm.io "Вечерняя школа кубернетес"
https://github.com/southbridgeio/slurm-school-k8s
#github #slurm #k8s #kubernetes #edu
https://github.com/southbridgeio/slurm-school-k8s
#github #slurm #k8s #kubernetes #edu
GitHub
GitHub - southbridgeio/slurm-school-k8s: Description Материалы по курсу slurm.io "Вечерняя школа кубернетес"
Description Материалы по курсу slurm.io "Вечерняя школа кубернетес" - southbridgeio/slurm-school-k8s
https://blog.alexellis.io/building-containers-without-docker/
#containers #openfaas #docker #buildkit
#containers #openfaas #docker #buildkit
Alex Ellis' Blog
Building containers without Docker
In this post I'll outline several ways to build containers without the need for Docker itself including buildkit, kaniko, GitHub Actions, GitLab and Jenkins
Forwarded from Dodo Engineering via @like
Обзор механической клавиатуры Vortex Core RGB для программистов (и не только) от Миши Рубанова:
– компактная клавиатура в 40%;
– два пробела;
– стрелки под рукой;
– скобки в центре.
Если в вашей жизни не было ничего, кроме Genius, Logitech и клавы от мака, скорее читайте статью. В обзоре много залипательных фоточек и gif.
– компактная клавиатура в 40%;
– два пробела;
– стрелки под рукой;
– скобки в центре.
Если в вашей жизни не было ничего, кроме Genius, Logitech и клавы от мака, скорее читайте статью. В обзоре много залипательных фоточек и gif.
Хабр
Обзор механической клавиатуры Vortex Core RGB
Я ничего не понимаю в клавиатурах, в моей жизни был только Genius, Logitech и клава от мака. Я хочу любить клавиатуры, но они меня бесят. Не могу научиться печать вслепую, по кнопкам не попадаю, до...
Forwarded from I hate overtime
#book #devops
Оказывается у автора есть бомбическая книжка про тераформ в открытом доступе: https://www.terraform-best-practices.com/
Оказывается у автора есть бомбическая книжка про тераформ в открытом доступе: https://www.terraform-best-practices.com/
Terraform-Best-Practices
Welcome | Terraform Best Practices
This document is an attempt to systematically describe best practices using Terraform and provide recommendations for the most frequent problems Terraform users experience.
Forwarded from DevOps drawer
Forwarded from DevOps&SRE Library
Prometheus-Basics
A beginner friendly introduction to prometheus.https://github.com/yolossn/Prometheus-Basics