Add renovate.json

renovate.json

@@ -0,0 +1,34 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": ["config:recommended"],
+  "pinDigests": false,
+  "dependencyDashboard": true,
+  "dependencyDashboardTitle": "Renovate Dashboard",
+  "assignees": ["hotarublaze"],
+  "labels": ["renovate"],
+  "configMigration": true,
+  "prHourlyLimit": 0,
+
+  "enabledManagers": [
+    "dockerfile",
+    "docker-compose"
+  ],
+
+  "packageRules": [
+    {
+      "matchDatasources": ["docker"],
+      "matchPackageNames": ["caddy"],
+      "groupName": "Caddy updates",
+      "automerge": false
+    }
+  ],
+
+  "docker-compose": {
+    "hostRules": [
+      {
+        "matchHost": "docker.io",
+        "concurrentRequestLimit": 2
+      }
+    ]
+  }
+}