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>
Introduces the fly/ directory with nginx + Tailscale container config,
Pulumi changes for Tailscale ACLs and auth key, DNS CNAME for
docs.eblu.me (staged but not yet deployed), mise tasks for deploy/setup/
shutoff, and Forgejo CI workflow for auto-deploy on push.
First target service: docs.eblu.me
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
