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feat(ingress): configurable caddy port so host nginx can front it

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Make the caddy host-published port configurable (CADDY_HTTP_PORT /
CADDY_HTTP_BIND, default 0.0.0.0:80 unchanged) so the machine's own nginx
can terminate TLS and reverse-proxy to caddy on a localhost-only port.

Add nginx/ulicraft-caddy.conf.tmpl: a TLS-terminator vhost set that proxies
apex/auth/pack to caddy by Host header, letting caddy stay the single ingress
for all routing. Alternative to ulicraft.conf.tmpl (nginx-as-static + drasl
proxy). minecraft still reaches caddy internally over http via mcnet aliases.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Oier Bravo
2026-06-08 23:34:42 +02:00
parent 3d52951355
commit 3486546fb3
3 changed files with 113 additions and 1 deletions
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98
nginx/ulicraft-caddy.conf.tmpl Normal file
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# ──────────────────────────────────────────────────────────────────
# Ulicraft host nginx — TLS terminator in FRONT of caddy.
# ──────────────────────────────────────────────────────────────────
# Alternative to ulicraft.conf.tmpl. Instead of nginx serving the static
# files + proxying only drasl, here caddy (the docker container) is the single
# ingress for ALL vhosts and nginx just terminates TLS and reverse-proxies
# everything to caddy by Host header.
#
# Caddy must be published on a localhost port — set in .env:
# CADDY_HTTP_PORT=8880
# CADDY_HTTP_BIND=127.0.0.1
# and the stack brought up with the caddy override (NOT the nginx override):
# docker compose -f docker-compose.yml -f docker-compose.caddy.yml \
# -f docker-compose.static.yml up -d
#
# Render with BOTH vars then install:
# CADDY_HTTP_PORT=8880 BASE_DOMAIN=ulicraft.net APP_DIR=/home/ubuntu/mc/ulicraft-server-v1 \
# envsubst '$CADDY_HTTP_PORT $BASE_DOMAIN $APP_DIR' \
# < nginx/ulicraft-caddy.conf.tmpl | sudo tee /etc/nginx/sites-available/ulicraft.conf
# sudo ln -sf /etc/nginx/sites-available/ulicraft.conf /etc/nginx/sites-enabled/
# sudo nginx -t && sudo systemctl reload nginx
#
# Prereqs:
# - certs issued: tooling/issue-letsencrypt.sh -> $APP_DIR/certs/<name>/{cert,key}.pem
# ──────────────────────────────────────────────────────────────────
upstream ulicraft_caddy {
server 127.0.0.1:${CADDY_HTTP_PORT};
}
# HTTP -> HTTPS for every name.
server {
listen 80;
listen [::]:80;
server_name ${BASE_DOMAIN} auth.${BASE_DOMAIN} pack.${BASE_DOMAIN};
return 301 https://$host$request_uri;
}
# One TLS server block per name (each has its own LE cert). All proxy to caddy;
# caddy routes by the forwarded Host header (apex -> www, auth -> drasl,
# pack -> packwiz files).
server {
listen 443 ssl;
listen [::]:443 ssl;
http2 on;
server_name ${BASE_DOMAIN};
ssl_certificate ${APP_DIR}/certs/${BASE_DOMAIN}/cert.pem;
ssl_certificate_key ${APP_DIR}/certs/${BASE_DOMAIN}/key.pem;
client_max_body_size 4m; # skin uploads (auth) reuse the same proxy block
location / {
proxy_pass http://ulicraft_caddy;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
}
server {
listen 443 ssl;
listen [::]:443 ssl;
http2 on;
server_name auth.${BASE_DOMAIN};
ssl_certificate ${APP_DIR}/certs/auth.${BASE_DOMAIN}/cert.pem;
ssl_certificate_key ${APP_DIR}/certs/auth.${BASE_DOMAIN}/key.pem;
client_max_body_size 4m; # skin uploads
location / {
proxy_pass http://ulicraft_caddy;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
}
server {
listen 443 ssl;
listen [::]:443 ssl;
http2 on;
server_name pack.${BASE_DOMAIN};
ssl_certificate ${APP_DIR}/certs/pack.${BASE_DOMAIN}/cert.pem;
ssl_certificate_key ${APP_DIR}/certs/pack.${BASE_DOMAIN}/key.pem;
location / {
proxy_pass http://ulicraft_caddy;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
}