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Static IPs for Serverless Containers
Now your Modal containers around the world can have static outbound IPs. Featuring WireGuard, policy-based routing, and NAT.
Luckily, our runtime is pretty resilient to unexpected crashes (it’s written in safe Rust, with testing, monitoring and conscious async-oriented design), and overall we haven’t run into any reliability issues with our implementation so far. This is a pretty good deal — at full packing of 240 IPs, each costs less than $0.01 / hr while also allowing for individual proxies to burst up to 100 Gbps of shared bandwidth. But this blog post is about the internals, and as mentioned before, we open-sourced our control plane — how we run WireGuard in production and integrate it into the Modal serverless function runtime.
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