feat(compose): optional static/mirror via override files; build-stack up modes

Base compose is core only (dnsmasq, drasl, minecraft, mc-backup, caddy
auth+packwiz). docker-compose.static.yml and docker-compose.mirror.yml layer
on the landing site and the air-gap mirror independently. build-stack.sh --up
[core|static|mirror|full] selects the override files.

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

docker-compose.mirror.yml

@@ -0,0 +1,12 @@
+# Mirror toggle — full client air-gap upstream mirror (see plan/11).
+# Layer on top of the base: `docker compose -f docker-compose.yml -f docker-compose.mirror.yml up -d`
+# (or `tooling/build-stack.sh --up mirror`). Adds the mirror vhost snippet, the
+# upstream content mount, and publishes :443 for Caddy's `tls internal` certs.
+# Populate the mirror first: tooling/mirror-airgap.sh (+ the proxy-capture step).
+services:
+  caddy:
+    ports:
+      - "443:443"
+    volumes:
+      - ./caddy/conf.d/20-mirror.caddy:/etc/caddy/conf.d/20-mirror.caddy:ro
+      - ./mirror/upstream:/srv/mirror:ro

docker-compose.static.yml

@@ -0,0 +1,10 @@
+# Static toggle — apex landing page + launcher downloads.
+# Layer on top of the base: `docker compose -f docker-compose.yml -f docker-compose.static.yml up -d`
+# (or `tooling/build-stack.sh --up static`). Adds the static vhost snippet plus
+# the www + launcher content mounts. Build www first: cd landing && pnpm run build.
+services:
+  caddy:
+    volumes:
+      - ./caddy/conf.d/10-static.caddy:/etc/caddy/conf.d/10-static.caddy:ro
+      - ./www:/srv/www:ro
+      - ./mirror/launcher:/srv/launcher:ro

docker-compose.yml

@@ -29,27 +29,28 @@ services:
     #   HTTP_USER: "admin"
     #   HTTP_PASS: "change-me"
 
+  # Core ingress. Static site + air-gap mirror are layered in via override
+  # files (docker-compose.static.yml / .mirror.yml) — see build-stack.sh --up.
   caddy:
     image: caddy:alpine
     container_name: caddy
     restart: unless-stopped
     ports:
       - "80:80"
-      - "443:443"              # tls internal — air-gap mirror vhosts (see 11)
     environment:
       BASE_DOMAIN: ${BASE_DOMAIN}
     volumes:
       - ./caddy/Caddyfile:/etc/caddy/Caddyfile:ro
-      - ./www:/srv/www:ro
+      - ./caddy/conf.d/00-core.caddy:/etc/caddy/conf.d/00-core.caddy:ro
       - ./pack:/srv/pack:ro
-      - ./mirror/launcher:/srv/launcher:ro
-      - ./mirror/upstream:/srv/mirror:ro   # byte-exact upstream mirror (see 11)
     networks:
       mcnet:
+        # All subdomain aliases live here (harmless when a vhost snippet isn't
+        # mounted; lets internal containers resolve them to Caddy). The spoof
+        # hosts only actually serve content when the mirror snippet is present.
         aliases:
           - "auth.${BASE_DOMAIN}"
           - "packwiz.${BASE_DOMAIN}"
-          # Air-gap spoof hosts -> Caddy, so internal containers resolve them too.
           - "meta.prismlauncher.org"
           - "piston-meta.mojang.com"
           - "piston-data.mojang.com"

tooling/build-stack.sh

@@ -80,28 +80,46 @@ prep() {
 }
 
 # ---- offline bring-up ------------------------------------------------------
+# Modes select which optional layers come up (override files):
+#   core    base only (dnsmasq, drasl, minecraft, mc-backup, caddy auth+packwiz)
+#   static  + apex landing page + launcher downloads
+#   mirror  + full air-gap upstream mirror (tls internal on :443)
+#   full    static + mirror (default)
 up() {
-  log "PHASE up (offline-capable bring-up)"
+  local mode="${1:-full}"
+  local -a files=(-f docker-compose.yml)
+  case "$mode" in
+    core)   ;;
+    static) files+=(-f docker-compose.static.yml) ;;
+    mirror) files+=(-f docker-compose.mirror.yml) ;;
+    full)   files+=(-f docker-compose.static.yml -f docker-compose.mirror.yml) ;;
+    *) die "unknown up mode: '$mode' (use core|static|mirror|full)" ;;
+  esac
+  log "PHASE up (mode=$mode)"
   have_script render-config.sh
   tooling/render-config.sh          # cheap; ensures configs match current .env
-  "${COMPOSE[@]}" up -d
-  log "stack up. apex: http://${BASE_DOMAIN}  auth: http://auth.${BASE_DOMAIN}"
+  "${COMPOSE[@]}" "${files[@]}" up -d
+  log "stack up (mode=$mode). apex: http://${BASE_DOMAIN}  auth: http://auth.${BASE_DOMAIN}"
 }
 
 # ---- dispatch --------------------------------------------------------------
 preflight
 case "${1:-}" in
   --prep) prep ;;
-  --up)   up ;;
+  --up)   up "${2:-full}" ;;
   "")     cat <<EOF
 
 Nothing run. Choose a phase:
-  $0 --prep   # ONLINE: render, build landing, mirror everything, pre-bake server
-  $0 --up     # OFFLINE: docker compose up -d the full stack
+  $0 --prep            # ONLINE: render, build landing, mirror everything, pre-bake server
+  $0 --up [mode]       # bring the stack up; mode = core|static|mirror|full (default full)
+                       #   core   = no static site, no mirror
+                       #   static = + apex landing + launcher downloads
+                       #   mirror = + full air-gap upstream mirror (:443)
+                       #   full   = static + mirror
 
 Sub-scripts expected in tooling/: render-config.sh, mirror-mods.sh,
 mirror-airgap.sh, fetch-launcher.sh  (built in their own commits — see plan/12).
 EOF
     ;;
-  *) die "unknown arg: $1 (use --prep or --up)" ;;
+  *) die "unknown arg: $1 (use --prep or --up [core|static|mirror|full])" ;;
 esac