blumeops/fly/start.sh
Erich Blume 0c6223fcf1 Fix Fly.io proxy: use TUN networking, preauthorize key, move healthz
Resolves multiple issues found during first deploy:
- Drop --tun=userspace-networking: Fly.io Firecracker VMs support TUN
  natively; userspace mode broke MagicDNS and Tailscale IP routing
- Add preauthorized=True to TailnetKey: required when tailnet has
  device approval enabled, otherwise containers hang on restart
- Move /healthz to default_server: Fly health checks send no Host
  header, so healthz must be on the catch-all server block
- Change region from sea (deprecated) to sjc
- Add iptables/ip6tables for TUN device support
- Add proxy_ssl_server_name for proper TLS SNI

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-08 02:16:19 -08:00

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#!/bin/sh
set -e
# Start tailscale daemon. Fly.io runs Firecracker microVMs which support
# TUN devices natively — no need for --tun=userspace-networking.
tailscaled --statedir=/var/lib/tailscale &
sleep 2
# Authenticate and join tailnet
tailscale up --authkey="${TS_AUTHKEY}" --hostname=flyio-proxy
# Wait for tailscale to be ready
until tailscale status > /dev/null 2>&1; do sleep 1; done
echo "Tailscale connected"
# Start nginx — MagicDNS resolves *.tail8d86e.ts.net hostnames
nginx -g "daemon off;"