feat: [UIE-8422] - database migration banner (#11595)

* feat: [UIE-8422] - database migration banner

* Added changeset: Database migration info banner

packages/manager/.changeset/pr-11595-added-1738590003764.md

@@ -0,0 +1,5 @@
+---
+"@linode/manager": Added
+---
+
+Database migration info banner ([#11595](https://github.com/linode/manager/pull/11595))

packages/manager/src/features/Databases/DatabaseLanding/DatabaseLanding.tsx

@@ -16,6 +16,7 @@ import { DatabaseEmptyState } from 'src/features/Databases/DatabaseLanding/Datab
 import DatabaseLandingTable from 'src/features/Databases/DatabaseLanding/DatabaseLandingTable';
 import { useIsDatabasesEnabled } from 'src/features/Databases/utilities';
 import { DatabaseClusterInfoBanner } from 'src/features/GlobalNotifications/DatabaseClusterInfoBanner';
+import { DatabaseMigrationInfoBanner } from 'src/features/GlobalNotifications/DatabaseMigrationInfoBanner';
 import { useOrder } from 'src/hooks/useOrder';
 import { usePagination } from 'src/hooks/usePagination';
 import { useRestrictedGlobalGrantCheck } from 'src/hooks/useRestrictedGlobalGrantCheck';
@@ -189,6 +190,7 @@ const DatabaseLanding = () => {
         title="Database Clusters"
       />
       {showTabs && !isDatabasesV2GA && <DatabaseClusterInfoBanner />}
+      {showTabs && isDatabasesV2GA && <DatabaseMigrationInfoBanner />}
       <Box>
         {showTabs ? (
           <Tabs>

packages/manager/src/features/GlobalNotifications/DatabaseMigrationInfoBanner.tsx

@@ -0,0 +1,20 @@
+import { Notice, Typography } from '@linode/ui';
+import React from 'react';
+
+import { SupportLink } from 'src/components/SupportLink';
+
+export const DatabaseMigrationInfoBanner = () => {
+  return (
+    <Notice important top={10} variant="warning">
+      <Typography fontFamily={(theme) => theme.font.bold} lineHeight="20px">
+        Legacy clusters decommission
+      </Typography>
+      <Typography lineHeight="20px">
+        Legacy database clusters will only be available until the end of 2025.
+        At that time, we’ll migrate your clusters to the new solution. For
+        questions regarding the new database clusters or the migration,{' '}
+        <SupportLink entity={{ type: 'database_id' }} text="contact support" />.
+      </Typography>
+    </Notice>
+  );
+};