docs: add readme docs

aws · Nov 3, 2024 · 7a433bf · 7a433bf
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commit 7a433bf
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diff --git a/packages/aws-cdk-lib/aws-ec2/README.md b/packages/aws-cdk-lib/aws-ec2/README.md
@@ -1538,6 +1538,19 @@ const host = new ec2.BastionHostLinux(this, 'BastionHost', {
 });
 ```
 
+It's recommended to set the `@aws-cdk/aws-ec2:bastionHostUseAmazonLinux2023ByDefault`
+[feature flag](https://docs.aws.amazon.com/cdk/v2/guide/featureflags.html) to `true` to use Amazon Linux 2023 as the
+bastion host AMI. Without this flag set, the bastion host will default to Amazon Linux 2, which will be unsupported in
+June 2025.
+
+```json
+{
+  "context": {
+    "@aws-cdk/aws-ec2:bastionHostUseAmazonLinux2023ByDefault": true
+  }
+}
+```
+
 ### Placement Group
 
 Specify `placementGroup` to enable the placement group support: