Declare the weekly upgrade timer with its health, and serve pacman_upgrade_health (issue 1574, ADR 0477)

modules/pacman/module.json

@@ -19,6 +19,7 @@
     "pacman_files",
     "pacman_updates",
     "pacman_upgrade",
+    "pacman_upgrade_health",
     "pacman_orphans",
     "pacman_remove_orphans",
     "pacman_cache",
@@ -63,14 +64,53 @@
       "type": "service",
       "unit": "reflector.timer",
       "state": "running",
-      "boot": "enabled"
+      "boot": "enabled",
+      "health": {
+        "kind": "unit"
+      }
     },
     {
       "id": "cache-cleaning",
       "type": "service",
       "unit": "paccache.timer",
       "state": "running",
-      "boot": "enabled"
+      "boot": "enabled",
+      "health": {
+        "kind": "unit"
+      }
+    },
+    {
+      "id": "upgrade-service",
+      "type": "file",
+      "path": "/etc/systemd/system/mesh-pacman-weekly-upgrade.service",
+      "mode": "0644",
+      "template": "files/mesh-pacman-weekly-upgrade.service"
+    },
+    {
+      "id": "upgrade-timer",
+      "type": "file",
+      "path": "/etc/systemd/system/mesh-pacman-weekly-upgrade.timer",
+      "mode": "0644",
+      "template": "files/mesh-pacman-weekly-upgrade.timer"
+    },
+    {
+      "id": "weekly-upgrade",
+      "type": "service",
+      "unit": "mesh-pacman-weekly-upgrade.timer",
+      "state": "running",
+      "boot": "enabled",
+      "restart-on": [
+        "upgrade-service",
+        "upgrade-timer"
+      ],
+      "health": {
+        "kind": "tool",
+        "tool": "pacman_upgrade_health",
+        "interval": "60s",
+        "timeout": "20s",
+        "looks": 2,
+        "grace": "60s"
+      }
     }
   ],
   "build": {