The Everything Feed - All Packet Pushers Pods HN789: How a Global Payments Processor Automates Firewall Changes at Scale
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Jul 25, 2025 Dan Peachy, a Senior Network Automation Engineer at Adyen, and Vlad Skuba, a Product Manager with a telecommunications background, dive into Adyen's groundbreaking firewall automation project. They discuss the shift from simple bash scripting to a self-service model, emphasizing speed and security in payment processing. The challenges of managing firewall policies in busy environments are analyzed, alongside the importance of building an automation team. Additionally, they share insights on creating an accessible self-service portal for developers and harnessing Ansible for network configurations.
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Multi-Team Firewall Management Chaos
- Multiple teams could create firewall policies, not just the networking team, causing coordination challenges.
- Manual deployments led to delays and confusion due to overlapping changes from different submitters.
Custom Build Due to Unique Needs
- No market solution met their niche requirements like multi-vendor support and gradual rollouts.
- Building a custom in-house solution was necessary to accommodate unique business needs.
Add Software Engineers to Teams
- Engage software engineers to bring expertise in scalable maintainable code.
- Network engineers benefit from collaborating with developers to handle complex software projects.