feat(oci): recover applications after a Proxmox reinstall, cluster records and AMD GPU profiles

The installation record of an OCI application travels with its container:
a copy inside the container and another in /etc/pve, written together
with the one kept on the host. A container restored on a newly installed
Proxmox, restored with another ID or moved to another node of a cluster
is recognised and registered again, with its private network, hookscript,
Rclone mount, host firewall rule and NVIDIA runtime. The Monitor offers
the same recovery from the Updates tab.

AMD GPUs are offered by generation. A GPU the ROCm image supports takes
the profile as it is; one of a supported family (Radeon 680M, 780M) is an
experimental option that asks for confirmation and is never proposed; an
older one is not offered. The GPU is checked with a real inference before
the installation accepts it. Recreate changes what runs recognition in an
installed Immich, between the CPU and a GPU of the host.

Updates:
- A failed update that is restored and checked removes its temporary
  container and the disks of the failed attempt.
- Every container volume is part of the backups, so Jellyfin, Plex and
  Hugo update with their default installation.
- An image published with a Docker-format manifest is recognised by its
  layers and build time and updates.
- The Proxmox notes of a multi-container application link to its LAN
  address.

AppImage/scripts/tests/test_oci_restored_instance.py

@@ -0,0 +1,76 @@
+"""A container restored from a backup carries the mark of its installation and
+has no record on this host: the modal says so instead of treating it as an
+ordinary container."""
+import json
+import sys
+import tempfile
+from pathlib import Path
+import unittest
+from unittest.mock import patch
+
+SCRIPTS = Path(__file__).resolve().parents[1]
+sys.path.insert(0, str(SCRIPTS))
+import oci_instance_info
+
+APP = "83e373f2-5ccc-4548-9b89-22d0956d1c77"
+OTHER = "488ed3cb-1145-477a-b90f-c46777d69fb2"
+
+
+class RestoredInstanceTests(unittest.TestCase):
+    def setUp(self):
+        tmp = tempfile.TemporaryDirectory()
+        self.addCleanup(tmp.cleanup)
+        self.root = Path(tmp.name)
+        for target, value in (("ROOT", str(self.root)),):
+            patcher = patch.object(oci_instance_info, target, value)
+            patcher.start()
+            self.addCleanup(patcher.stop)
+        patcher = patch.object(oci_instance_info.oci_console_logs, "configured_log", return_value=None)
+        patcher.start()
+        self.addCleanup(patcher.stop)
+
+    def record(self, vmid, identity):
+        folder = self.root / str(vmid)
+        folder.mkdir()
+        (folder / "oci-compose.json").write_text(json.dumps(
+            {"vmid": vmid, "installation_id": identity, "status": "installed", "deployment": {}}))
+
+    def info(self, vmid, installation):
+        with patch.object(oci_instance_info, "_installation", return_value=installation):
+            return oci_instance_info.info(vmid)
+
+    def test_a_marked_container_without_record_was_restored(self):
+        result = self.info(119, APP)
+        self.assertTrue(result["restored"])
+        self.assertFalse(result["oci_instance"])
+
+    def test_the_record_of_another_installation_does_not_register_it(self):
+        self.record(119, OTHER)
+        result = self.info(119, APP)
+        self.assertTrue(result["restored"])
+        self.assertFalse(result["oci_instance"])
+
+    def test_a_container_the_menu_could_not_recover_is_an_ordinary_one(self):
+        (self.root / ".unrecoverable.json").write_text(json.dumps({"119": APP}))
+        self.assertFalse(self.info(119, APP)["restored"])
+        self.assertTrue(self.info(119, OTHER)["restored"])
+
+    def test_a_registered_container_is_an_oci_instance(self):
+        self.record(119, APP)
+        result = self.info(119, APP)
+        self.assertFalse(result["restored"])
+        self.assertTrue(result["oci_instance"])
+
+    def test_an_ordinary_container_is_neither(self):
+        result = self.info(100, None)
+        self.assertFalse(result["restored"])
+        self.assertFalse(result["oci_instance"])
+
+    def test_the_mark_is_read_from_the_notes_of_the_container(self):
+        text = f"#<div>Tandoor</div>\n#<!-- proxmenux-instance={APP} -->\narch: amd64\n[snap]\n#proxmenux-instance={OTHER}\n"
+        with patch("builtins.open", unittest.mock.mock_open(read_data=text)):
+            self.assertEqual(oci_instance_info._installation(119), APP)
+
+
+if __name__ == "__main__":
+    unittest.main()