Cloudflare's tunnel edge-pool assignment can blackhole the site for whole
regions (2026-10-10: tunnel hostnames served from an unreachable anycast
range for hours). This adds an independent path and the automation that
keeps occupymedia.cc reachable when either path is sick:
- nginx edge mirroring the tunnel ingress (app/api/tube/chat/ping), LE
wildcard via dns-01, twice-daily renewal
- DOCKER-USER firewall: 80/443 restricted to Cloudflare ranges (CF mode)
or OPEN for grey-cloud mode via firewall.mode
- edge-watcher (60s systemd timer): dynamic public-IP sync, dual-path
health checks, DNS failover TUNNEL<->ORIGIN/GREY with hysteresis,
gated by EDGE_ENABLED
- ping.occupymedia.cc sacrificial probe host for activation
- deployment runbook in README.md; credential files shipped as .example
