DanubeData Blog
Stay updated with the latest news, tutorials, and insights about cloud infrastructure.
Self-Host Mastodon and Matrix Server on VPS: The Fediverse Hosting Guide (2026)
A complete 2026 guide to self-hosting Mastodon (ActivityPub microblogging) and Matrix (Synapse/Dendrite chat) on a European VPS. Covers hardware sizing, Docker deployment, federation, moderation, media storage to S3, GDPR, and backups. Built for owners who want their own corner of the Fediverse without handing data to Big Tech.
Self-Host GitLab on VPS: Complete Setup Guide (2026)
Self-host GitLab on your own VPS for a fraction of GitHub Enterprise cost. Complete 2026 guide covering Docker install, SSL, PostgreSQL, CI/CD runners, S3 backups, and GDPR.
GDPR-Compliant Message Queues: Why Data Residency Matters for European Companies
Message queues are a critical blind spot in GDPR compliance audits. Learn why data residency matters for message brokers, how to assess risk with US-managed services, and how to build a fully compliant event-driven architecture hosted in Europe.
Migrating from Amazon MQ to Managed RabbitMQ: A Complete Guide
A practical, step-by-step guide for DevOps engineers and CTOs migrating from Amazon MQ to a cost-effective, EU-hosted managed RabbitMQ. Covers federation-based zero-downtime migration, drain-and-switch, connection string management, and post-migration validation.
Building a RAG Knowledge Base with S3-Compatible Storage in Europe (2026)
Build a GDPR-compliant RAG pipeline using S3-compatible storage as your document store. Complete Python guide with boto3, LangChain, pgvector, and practical examples for powering LLM applications with your own data.
RabbitMQ with MQTT for IoT: Building a Scalable Device Messaging Platform
Learn how to build a scalable IoT device messaging platform using RabbitMQ with MQTT. Covers MQTT QoS levels, topic mapping to AMQP exchanges, Python and Node.js code examples, handling 10K+ concurrent connections, TLS security, and EU data sovereignty compliance.
S3 Storage as Persistent Memory for AI Coding Agents like Claude Code and Codex (2026)
Use S3-compatible object storage to persist, sync, and back up your AI coding agent memory across machines. Practical guide with rclone, s3cmd, and automation scripts for Claude Code, Codex, and other AI dev tools.
RabbitMQ Best Practices for Production: 15 Rules Every Developer Should Follow
Master RabbitMQ in production with these 15 battle-tested best practices. Covers quorum queues, publisher confirms, dead-letter exchanges, monitoring, TLS, connection pooling, and more — with code examples in Python and Node.js.
RabbitMQ vs Kafka vs Amazon SQS: Choosing the Right Message Broker (2026)
An in-depth comparison of RabbitMQ, Apache Kafka, and Amazon SQS for 2026. Covers messaging patterns, latency, throughput, cost analysis, code examples, and a decision framework to help you choose the right message broker for your architecture.
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