Sysadmin Shrink existing partition mdraid linux ext4 using resize2fs How do I know what filesystem type it is?df -T How do I view the current disk(s) layout?lsblk -f1. unmount the drive's partition you want to shrinkumount
What does unhandled exception mean? What does "node --unhandled-rejections=strict" mean? E.g. node --unhandled-rejections=strict main.js Sure good question! Focus on the word *unhandled* It means: Normally , when an error happens (remember "errors" are also called "exceptions") then we handle them by doing : try: //Do something catch
programming Playwright tutorial example configuration Playwright provides a fast and reliable interface that can be used to automate browser navigation testing. In this Playwirght tutorial, we are going to use it to do some simple
debugging Debug python containers pdb docker breakpoint Debugging python docker containers with remote-pdb, docker-compose You want to debug and set breakpoints inside your docker container and/or you want to debug with docker-compose. Warning: As the docs
How to check if logrotate is working Check that the logrotate is working as expected See man logrotate for all the options, check it's running correctly by using verbose mode and reading the output: logrotate -v /etc/
open source Does git rm delete the file? tldr; Yes. Yes it does. (use git restore --staged <filename> to un-delete if you made that mistake*) Does git rm <file/path name> remove the file?
debugging Override the entrypoint of docker containers (any container) Sometimes you want a quick and easy way to look inside a container before it's stopped- to debug it, to see what's going on. One way to change a way
open source Database migrations with multiple git branches and teams alembic sqlalchemy This article is suitable for understanding database migrations when there are database migrations on different git branches which need to be merged. The examples are python's alembic project but the
How does Algorand work thoughts This is a summerisation of the parts I found interesting in relation to the recorded conversation with Silvio Micali: Cryptocurrency, Blockchain, Algorand, Bitcoin & Ethereum | Lex Fridman Podcast 1. Algorand
Why do I need to confirm my WHOIS information? The WHOIS information shows the public and your registrant the contact information of a domain's owner; in other words, the WHOIS information can be useful to verify if a legit company or person created a Domain. However, some registrants have the option to hide
ipv6 KVM multiple vms ip config I want to spin up multiple vms using kvm and ipv6. IPv4 is exhausted and expensive. How do I do that? Does my machine support KVM?You need to find
open source How to Migrate From Ghost 1.x.x to 3.x.x The Ghost Version 1.x.x can't be updated automatically anymore. Therefore, it needs to install the lastest version of Ghost and migrate all the old data to the new
open source Saas based architectures Deploy Sass customers independently each within their own version of the application or as one, application containing all tenants? The trade-offs when building software as a service (saas) based architectures,
kubernetes How to install k0s kzeros Kubernetes K0 (kzeros) in a new single binary distribution model for running and deploying Kubernetes. The project is available on GitHub here: https://github.com/k0sproject/k0s The k0s project comes
open source Sessions not set SameSite cookie Firefox vs Chome iframe This matter comes into play when you are embedding an iframe into your application (e.g. maybe your application is a SasS or you have a single sign on scenario)
open source FastAPI Production Deployment with Github actions & Dokku This FastAPI tutorial shows you how to develop and deploy python FastAPI to a server with automated deployment & TLS using Github Actions. Based on this FastAPI deployment example repo.
Sysadmin htaccess redirect old pages to new domain Sometimes you need to change a domain name, and you want to redirect all old pages to the new domain name. On your existing domain, you can redirect all requests
open source Quickly setup local Laravel development using docker without php installed locally The following will create the Laravel hello world application in your current working directory, without haveing needing to have the correct php version installed locally. docker run --rm --interactive --tty
kubernetes How large public and private organisations are using teams, kubernetes, vault and git to manage their deployments This document sets out my observations of recently working in a large public sector environment in the UK managing significant workloads. This is also a good history comparing deployment practices
docker Docker entrypoint vs cmd I'm always forgetting what is the difference between Docker's entry point vs Docker cmd. Which one to use and when? Tldr: "You can use the exec form of ENTRYPOINT
Notes on Kafka What is Kafka anyway? History of kafka From: https://engineering.linkedin.com/distributed-systems/log-what-every-software-engineer-should-know-about-real-time-datas-unifying Many new products and analysis just came from putting together multiple pieces of data that had
open source Installing Jenkins x with existing git repo How to install jenkinsx and import an existing git repo for your CI/CD pipelines development process. Enable faster teams and faster releases.
open source Kubernetes updating many deployments at once Subscribie is a website builder targeting the niche of users who want to build a subscription based website. It allows users to quickly spin up a website and sell items
open source Scaling Kubernetes ReadWriteMany Ceph Deployments Run ReadWriteMany volumes on Google Kubernetes engine which allows your Deployments with persistent data to scale. This allows us to scale a Kubernetes deployment with Persistent Volumes without the deployment
Sysadmin Kubernetes SSL Certificates- How to Set-up a Cluster With SSL Termination Using Cert Manager on a Kubernetes cluster to do SSL termination. By the end of this guide you will be able to: Route SSL traffic from a domain your own
