[hotfix] Fixed DNS Provider List not visible for non-admin users

backend/__fixtures__/controllerregistrations.js

@@ -50,7 +50,7 @@ const controllerRegistrationList = [
     }]
   }),
   getControllerRegistration({
-    uid: 2,
+    uid: 3,
     name: 'Network Registration 2',
     resources: [{
       kind: 'Network',
@@ -62,13 +62,21 @@ const controllerRegistrationList = [
     }]
   }),
   getControllerRegistration({
-    uid: 2,
+    uid: 4,
     name: 'Provider-Foo',
     resources: [{
       kind: 'DNSRecord',
       type: 'gardenland',
       primary: true
     }]
+  }),
+  getControllerRegistration({
+    uid: 5,
+    name: 'extension-shoot-dns-service',
+    resources: [{
+      kind: 'Foo',
+      type: 'bar'
+    }]
   })
 ]
 

backend/lib/services/controllerregistrations.js

@@ -10,7 +10,8 @@ const { getControllerRegistrations } = require('../cache')
 const authorization = require('./authorization')
 const _ = require('lodash')
 
-const REQUIRED_RESOURCE_KINDS = ['Network', 'DNSProvider']
+const REQUIRED_RESOURCE_KINDS = ['Network', 'DNSRecord']
+const REQUIRED_RESOURCE_NAMES = ['extension-shoot-dns-service']
 exports.listExtensions = async function ({ user }) {
   const controllerregistrations = getControllerRegistrations()
   const allowed = await authorization.canListControllerRegistrations(user)
@@ -25,7 +26,7 @@ exports.listExtensions = async function ({ user }) {
       // required resoure kinds are essential for the frontend and need to be returned even if the user has not the permission to read controllerregistrations
       const resources = _.filter(spec.resources, ({ kind }) => REQUIRED_RESOURCE_KINDS.includes(kind))
       // only expose the extension if it contains one of the required resources
-      if (!_.isEmpty(resources)) {
+      if (!_.isEmpty(resources) || REQUIRED_RESOURCE_NAMES.includes(name)) {
         extensions.push({ name, resources })
       }
     }

backend/test/acceptance/__snapshots__/api.controllerregistrations.spec.js.snap

@@ -70,6 +70,15 @@ Array [
       },
     ],
   },
+  Object {
+    "name": "extension-shoot-dns-service",
+    "resources": Array [
+      Object {
+        "kind": "Foo",
+        "type": "bar",
+      },
+    ],
+  },
 ]
 `;
 
@@ -119,5 +128,19 @@ Array [
       },
     ],
   },
+  Object {
+    "name": "Provider-Foo",
+    "resources": Array [
+      Object {
+        "kind": "DNSRecord",
+        "primary": true,
+        "type": "gardenland",
+      },
+    ],
+  },
+  Object {
+    "name": "extension-shoot-dns-service",
+    "resources": Array [],
+  },
 ]
 `;