nix-config/hosts/heather/caddy.nix
mikl cd018a24c2 heather: install jitsi from scratch per official docs (minimal)
Per https://jitsi.github.io/handbook/docs/devops-guide/devops-guide-docker
and official docker-compose.yml. Minimal config, no copying from old install.

- 4 services: web/prosody/jicofo/jvb (stable-11031, docker hub)
- read_only + tmpfs per official compose
- Named volumes: jitsi-{web,prosody,prosody-data,jicofo,jvb,transcripts}
- Network meet-jitsi, prosody alias xmpp.meet.jitsi
- Reverse proxy: DISABLE_HTTPS=1, Caddy v2 auto-WebSocket (no manual header_up)
- JVB_ADVERTISE_IPS=51.250.45.111, :10000/udp public
- Auth: internal (ENABLE_AUTH=1, AUTH_TYPE=internal). NO GUESTS — template bug
  in prosody: guest domain lacks websocket module → disconnect loop
- Secrets NEW in /var/lib/jitsi-secrets/jitsi.env (root:docker 0640):
  JICOFO_COMPONENT_SECRET, JICOFO_AUTH_PASSWORD, JVB_AUTH_PASSWORD
- Firewall: 10000/udp (NixOS + YC SG)
2026-07-13 00:56:13 +03:00

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# heather — Caddy как единый edge (TLS termination, reverse proxy).
#
# Заменяет Traefik (k3s built-in, отключён) и старые Caddy на iscg-dev/jul11.
# Паттерн как на iscg-dev: system Caddy, конфиг декларативно в nix.
#
# Caddy терминирует TLS на :80/:443 и роутит по Host на:
# - host-сервисы (syncthing GUI на localhost:8384) — напрямую
# - docker-контейнеры (forgejo на localhost:3030 и т.д.) — проброшенные порты
#
# ACME: пока staging (чтобы не забанили Let's Encrypt пока DNS не переведён на
# heather). Когда A-записи iscg.dev → 51.250.45.111 — переключим на production
# (убрать acme_ca, Caddy использует production LE по умолчанию).
{ config, pkgs, lib, ... }:
let
# caddy/basic-auth под паролем. hash сгенерить:
# caddy hash-password --plaintext '<password>'
# (на heather: nix-shell -p caddy --run 'caddy hash-password ...')
# Защищает syncthing GUI снаружи (GUI слушает только 127.0.0.1:8384,
# Caddy проксирует sync.iscg.dev + basicauth).
syncBasicAuth = ''
basicauth {
mikl $2a$14$ozHN9/aa4VhPX43NN8MKdODKvOoJ5MBpOUFhzkxwvb58ZI5b6eqEK
}
'';
in {
services.caddy = {
enable = true;
# DNS переведён на heather (2026-07-12). Production ACME.
# Если нужен staging обратно: раскомментировать acmeCA ниже.
# acmeCA = "https://acme-staging-v02.api.letsencrypt.org/directory";
email = "mikl@iscg.dev";
virtualHosts = {
# --- Syncthing GUI (host-сервис) ---
# header_up Host 127.0.0.1:8384 — обходим syncthing host-check (DNS
# rebinding protection): syncthing сравнивает Host header с адресом
# прослушивания (127.0.0.1:8384) и отдаёт 403 "Host check error" для
# внешних доменов. Подменяем Host на бэкенде.
"sync.iscg.dev".extraConfig = syncBasicAuth + ''
reverse_proxy 127.0.0.1:8384 {
header_up Host 127.0.0.1:8384
}
'';
# --- Контейнеры (arion, см. arion-compose.nix) ---
# Forgejo
"git.iscg.dev".extraConfig = ''
reverse_proxy 127.0.0.1:3030
'';
# Matrix tuwunel (homeserver)
"iscg.dev".extraConfig = ''
reverse_proxy 127.0.0.1:8008
encode zstd gzip
'';
# Matrix federation
"iscg.dev:8448".extraConfig = ''
reverse_proxy 127.0.0.1:8008
'';
# tuwunel-admin
"admin.iscg.dev".extraConfig = ''
reverse_proxy 127.0.0.1:8009
'';
# Cinny (matrix web client)
"chat.iscg.dev".extraConfig = ''
reverse_proxy 127.0.0.1:8080
encode zstd gzip
'';
# Jitsi Meet (Caddy v2 auto-handles WebSocket upgrade)
# Docs: https://jitsi.github.io/handbook/docs/devops-guide/devops-guide-docker#running-behind-a-reverse-proxy
"jitsi.iscg.dev".extraConfig = ''
reverse_proxy 127.0.0.1:8000
'';
# Teable
"teable.iscg.dev".extraConfig = ''
reverse_proxy 127.0.0.1:2345
'';
# Silverbullet
"note.iscg.dev".extraConfig = ''
reverse_proxy 127.0.0.1:3001
'';
};
};
}