devops
Set Up a Private Docker Registry
Run your own container registry with the official registry image, htpasswd authentication and TLS – plus nginx reverse proxy settings, garbage collection and hosted alternatives.
Read more →Programming Server
Practical notes on DevOps, cloud and coding
Guides and cheat sheets from everyday development work: Docker, nginx, PostgreSQL, Git, cloud tooling and programming. Written by Mike Petersen, software developer and founder of Odania GmbH, working with C#, Java, Kotlin and TypeScript – and on games with Unity and Godot.
DevOps
devops
Load Balancing with Nginx
Load balancing with open-source nginx: upstream blocks, balancing methods, passive health checks, WebSocket proxying and TCP load balancing with the stream module.
Read more →devops
Network Connection Debugging
A practical workflow to find firewall and connection problems: test with curl and nc, check routes, capture traffic with tcpdump and analyse it with tcptrace or Wireshark.
Read more →Tools & Databases
general
PostgreSQL User and Privilege Management
Essential PostgreSQL commands: list databases and tables, create roles, change owners and grant least-privilege access – including default privileges and the PostgreSQL 15 public schema change.
Read more →general
Different Git Configs per Folder
Use includeIf in your .gitconfig to switch email, name and signing key automatically – per folder or per remote URL. Works for GPG and SSH signing.
Read more →general
Clean Up Docker: Free Disk Space Safely
Docker eating your disk? See what uses space with docker system df, then clean up containers, images, volumes and build cache with the prune commands – safely.
Read more →Cloud
cloud
Easier AWS Role Switching with Terraless
Terraless is a Terraform wrapper that simplifies assuming roles across AWS accounts, including MFA. What it does, how to use it and which alternatives exist today.
Read more →Coding
coding
Which Programming Language Is Right for You?
Don't pick a language – pick what you want to build. Which languages fit web, backend, mobile, games, data and AI, and systems programming, from a developer who uses several of them daily.
Read more →Need help with a project?
With Odania, I build AI solutions and the cloud and software engineering behind them for businesses.