refactor(compose): minecraft via PACKWIZ_URL, authlib->auth., runtime mount

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

docker-compose.yml

@@ -1,10 +1,13 @@
 # ──────────────────────────────────────────────────────────────────
-# Minecraft 1.21.1 NeoForge + Drasl auth (with Keycloak OIDC)
+# Ulicraft LAN-party stack — Minecraft 1.21.1 NeoForge + Drasl auth
 # ──────────────────────────────────────────────────────────────────
-# Assumes:
+# Topology (single source of config: BASE_DOMAIN + HOST_LAN_IP in .env):
-#   - Keycloak is already running and reachable at https://keycloak.home.local
+#   - dnsmasq resolves *.${BASE_DOMAIN} -> HOST_LAN_IP for guest laptops
-#   - AdGuard Home resolves drasl.home.local -> this host's LAN IP
+#   - caddy is the only HTTP ingress; holds mcnet aliases so the stack
-#   - This host's LAN IP is on the same segment as the LAN party
+#     resolves auth.${BASE_DOMAIN} / packwiz.${BASE_DOMAIN} internally too
+#   - drasl handles auth (password login; NO Keycloak/OIDC in this stack)
+#   - packwiz pack is served by caddy at packwiz.${BASE_DOMAIN}
+#   - minecraft installs mods via PACKWIZ_URL, authlib-injector -> auth.
 # ──────────────────────────────────────────────────────────────────
 
 services:
@@ -73,6 +76,7 @@ services:
       EULA: "TRUE"
       TYPE: "NEOFORGE"
       VERSION: "1.21.1"
+      # Verify NEOFORGE_VERSION against projects.neoforged.net before deploy.
       NEOFORGE_VERSION: "21.1.209"   # pin a known-good build; update deliberately
 
       # ── Memory / performance ────────────────────────────────────
@@ -84,7 +88,7 @@ services:
       # ── Auth: offline mode + authlib-injector pointing at Drasl ─
       ONLINE_MODE: "FALSE"
       # mount authlib-injector.jar at /extras/authlib-injector.jar
-      JVM_OPTS: "-javaagent:/extras/authlib-injector.jar=http://drasl.home.local:25585/authlib-injector"
+      JVM_OPTS: "-javaagent:/extras/authlib-injector.jar=http://auth.${BASE_DOMAIN}/authlib-injector"
 
       # ── Server config ───────────────────────────────────────────
       DIFFICULTY: "normal"
@@ -96,12 +100,8 @@ services:
       ENFORCE_SECURE_PROFILE: "FALSE"  # required for authlib-injector on 1.21+
       ALLOW_FLIGHT: "TRUE"             # many tech mods need this
 
-      # ── Mod sources (Modrinth recommended over CF) ──────────────
+      # ── Mod source: packwiz pack served by caddy ────────────────
-      MODRINTH_PROJECTS: "@/extras/modrinth-mods.txt"
+      PACKWIZ_URL: "http://packwiz.${BASE_DOMAIN}/pack.toml"
-      MODRINTH_DOWNLOAD_DEPENDENCIES: "required"
-      # Optional, only if you need CF-exclusive mods:
-      # CF_API_KEY: ${CF_API_KEY}
-      # CURSEFORGE_FILES: "@/extras/cf-mods.txt"
 
       # ── RCON for remote admin ───────────────────────────────────
       ENABLE_RCON: "TRUE"
@@ -111,9 +111,10 @@ services:
       TZ: "Europe/Madrid"
     volumes:
       - mc_data:/data
-      - ./extras:/extras:ro        # authlib-injector.jar + mod lists live here
+      - ./runtime:/extras:ro       # authlib-injector.jar lives here
     depends_on:
       - drasl
+      - caddy                      # packwiz pack is served by caddy
     networks:
       - mcnet