plex: its state is placed, not written over ace's disk

The manifest named /services/plex/{config,transcode} with owner and mode.
On ace /services/plex is a link to /mnt/plex, plex's 133 GB of state, so
a take would have chmod'ed 0700 the top of the one directory the operator
ruled must never be re-moded or re-owned. The directories are now pathless
(config, data, transcode), placed by the mesh; on an adopted machine they
must be placed where the data is (hq 153) before plex is ever taken.

- The container sees exactly the paths ace's plex sees today: /config,
  /data (HAL mounts it; the catalogue did not), /transcode and all eight
  libraries, including sport-games, live-shows and formula-1. A library
  whose mount disappears is emptied by Plex's automatic trash emptying,
  taking its watch state with it.
- Libraries are mounted read-only, as the accesses already said.
- Owner 1000:1000 and mode 0755: plex runs as uid 1000 (the image reads
  PLEX_UID, not the PUID HAL passes), pms-docker leaves its dirs 0755, and
  ace's /mnt/plex is 1000:1000 0755 - so placing adopted data is a no-op.
- Image pinned to what ace runs, 1.43.4.10903; the old pin was 1.43.3.
- ADVERTISE_IP comes from the route's own public name through an env-file
  (${bound:route:name}); it depends on mesh-controller #149, and without
  it the declaration is refused, not applied.
- The server is routed (label plex) and declares its four GDM discovery
  ports, which LAN players use.
- No token secret: a minted one is not a Plex token and the sidecar
  preferred it. The sidecar reads PlexOnlineToken from Preferences.xml
  through its read-only config mount, and dials ${port:32400}.

Verified: catalogue tests with MESH_CATALOGUE (parse, mounts); a scratch
resolution with ace's assignment on the #149 controller renders
ADVERTISE_IP=https://plex.zurag.be/, both route names and 32400/tcp +
GDM/udp open to anywhere; on main it is refused naming "name". A
throwaway pms-docker at the pinned digest on empty dirs answered
/identity, wrote customConnections from the env-file and ran as 1000;
client.ts typechecks strict and found the token in a Preferences.xml.

modules/plex/client.ts

@@ -58,8 +58,10 @@ export class PlexClient {
   static fromEnv(env: NodeJS.ProcessEnv = process.env): PlexClient {
     const url = env.MESH_PLEX_URL ?? `http://127.0.0.1:${env.PLEX_PORT ?? "32400"}`;
     const dataDir = env.MESH_PLEX_DATA_DIR ?? "/var/lib/plex";
-    // The operator-provided token is an own-secret the mesh mounts at MESH_PLEX_TOKEN_FILE (delivered
+    // The manifest sets neither MESH_PLEX_TOKEN_FILE nor MESH_PLEX_TOKEN: the server already keeps its
-    // by `secret accept`); prefer it, fall back to a bare env var, then to discovery from the data dir.
+    // token in Preferences.xml, read here through the manifest's read-only mount of the config dir.
+    // A token the mesh minted would be one plex.tv never issued, and preferring it would break every
+    // call, so the module declares no token secret. The file and env overrides stay for hand runs.
     const token = readSecret(env.MESH_PLEX_TOKEN_FILE) ?? env.MESH_PLEX_TOKEN ?? PlexClient.detectToken(dataDir);
     if (!token) throw new Error("no Plex token — set MESH_PLEX_TOKEN or make the data dir readable");
     return new PlexClient(url, token);

modules/plex/module.json

@@ -13,8 +13,7 @@
     "*.download.completed"
   ],
   "own-secrets": {
-    "broker": "/var/lib/mesh/plex/broker",
+    "broker": "/var/lib/mesh/plex/broker"
-    "token": "/var/lib/mesh/plex/token"
   },
   "listens": [
     {
@@ -22,7 +21,35 @@
       "port": 32400,
       "protocol": "tcp",
       "from": "mesh",
-      "why": "streaming and the app; reaching it from outside is a route grant later"
+      "why": "the server itself: the apps, streaming and the web player, direct and through its route"
+    },
+    {
+      "name": "gdm-1",
+      "port": 32410,
+      "protocol": "udp",
+      "from": "mesh",
+      "why": "G'Day Mate discovery: players on the same network find the server without signing in"
+    },
+    {
+      "name": "gdm-2",
+      "port": 32412,
+      "protocol": "udp",
+      "from": "mesh",
+      "why": "G'Day Mate discovery"
+    },
+    {
+      "name": "gdm-3",
+      "port": 32413,
+      "protocol": "udp",
+      "from": "mesh",
+      "why": "G'Day Mate discovery"
+    },
+    {
+      "name": "gdm-4",
+      "port": 32414,
+      "protocol": "udp",
+      "from": "mesh",
+      "why": "G'Day Mate discovery"
     }
   ],
   "accesses": [
@@ -45,6 +72,18 @@
     {
       "path": "/services/media/audiobooks",
       "mode": "read"
+    },
+    {
+      "path": "/services/media/sport-games",
+      "mode": "read"
+    },
+    {
+      "path": "/services/media/live-shows",
+      "mode": "read"
+    },
+    {
+      "path": "/services/media/formula-1",
+      "mode": "read"
     }
   ],
   "resources": [
@@ -54,39 +93,63 @@
       "path": "/var/lib/mesh/plex",
       "mode": "0700"
     },
+    {
+      "id": "state",
+      "type": "directory",
+      "mode": "0700",
+      "place": "."
+    },
     {
       "id": "config",
       "type": "directory",
-      "path": "/services/plex/config",
+      "mode": "0755",
-      "mode": "0700",
+      "owner": "1000:1000"
+    },
+    {
+      "id": "data",
+      "type": "directory",
+      "mode": "0755",
       "owner": "1000:1000"
     },
     {
       "id": "transcode",
       "type": "directory",
-      "path": "/services/plex/transcode",
+      "mode": "0755",
-      "mode": "0700",
       "owner": "1000:1000"
     },
+    {
+      "id": "server-env",
+      "type": "file",
+      "path": "${dir:state}/server.env",
+      "mode": "0600",
+      "content": "ADVERTISE_IP=https://${bound:route:name}/\n"
+    },
     {
       "id": "server",
       "type": "container",
       "name": "plex",
-      "image": "plexinc/pms-docker@sha256:83a425ae9e133b1cb2cc3b809556e01c61cd8ff65c582e41b4374bc2210bac9e",
+      "image": "plexinc/pms-docker@sha256:e0ab27395614a8e1a4fdf84c6bc60ac664915cfdde70c52d030c7728a1c48e14",
       "network": "host",
       "env": {
         "PLEX_UID": "1000",
         "PLEX_GID": "1000",
         "TZ": "Etc/UTC"
       },
+      "env-file": [
+        "${dir:state}/server.env"
+      ],
       "volumes": [
-        "/services/plex/config:/config",
+        "${dir:config}:/config",
-        "/services/plex/transcode:/transcode",
+        "${dir:data}:/data",
-        "/services/media/movies:/movies",
+        "${dir:transcode}:/transcode",
-        "/services/media/series:/series",
+        "/services/media/movies:/movies:ro",
-        "/services/media/anime:/anime",
+        "/services/media/series:/series:ro",
-        "/services/media/music:/music",
+        "/services/media/anime:/anime:ro",
-        "/services/media/audiobooks:/audiobooks"
+        "/services/media/music:/music:ro",
+        "/services/media/audiobooks:/audiobooks:ro",
+        "/services/media/sport-games:/sport-games:ro",
+        "/services/media/live-shows:/live-shows:ro",
+        "/services/media/formula-1:/formula-1:ro"
       ]
     },
     {
@@ -96,18 +159,28 @@
       "network": "host",
       "volumes": [
         "/var/lib/mesh/plex/broker:/run/secrets/broker:ro",
-        "/var/lib/mesh/plex/token:/run/secrets/token:ro",
+        "${dir:config}:/var/lib/plex/config:ro"
-        "/services/plex/config:/var/lib/plex/config:ro"
       ],
       "env": {
         "MESH_BROKER_FILE": "/run/secrets/broker",
-        "MESH_PLEX_URL": "http://127.0.0.1:32400",
+        "MESH_PLEX_URL": "http://127.0.0.1:${port:32400}",
-        "MESH_PLEX_TOKEN_FILE": "/run/secrets/token",
         "MESH_PLEX_DATA_DIR": "/var/lib/plex"
       },
       "artifact": "runtime"
     }
   ],
+  "requires": [
+    "route"
+  ],
+  "contributes": {
+    "route": {
+      "label": "plex",
+      "endpoint": "stream"
+    }
+  },
+  "binds": {
+    "route": "${dir:state}/route.json"
+  },
   "build": {
     "on": [
       {