Februar 2026 - Migrating 500+ CloudFormation stacks all at once

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Agenda
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18:00 - Doors open, networking and drinks
18:30 - Sebastian Hesse: Migrating 500+ CloudFormation stacks all at once
19:30 - Networking, food and drinks

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Contents of the presentations
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Ever wondered which challenges you encounter when migrating 500+ CloudFormation stacks in a single move? We did exactly that and share what we've learned. In this session, you'll learn:
- which approach we've taken to accomplish the goal,
- what risks we identified ahead of time,
- and the unexpected challenges we encountered along the way.

This specifically covers challenges with deleting and importing CloudFormation resources and reaching certain AWS limits. In the end, we'll share which improvements could have saved us some time and nerves. If you're a developer working with CloudFormation (or infrastructure as code in general) and looking for practical insights, this talk is for you!

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Location und Parking
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This Meetup will take place at Storm Reply office, Freie-Vogel-Straße 371, 44269 Dortmund, 5th floor

Travel indications:

• by car: Please find a parking lot in the neighbourhood. (Navi: Stadtrat-Cremer-Allee)
• by public transport: U47, Stadtkrone Ost

P.S.: The event will be in German, but it will be held in English for all in case we have non-German-speaking participants.