Merge branch 'main' into guardrail-monitoring

apidocs/namespaces/bedrock/interfaces/AgentAliasProps.md

@@ -41,7 +41,7 @@ The name for the agent alias.
 #### Default
 
 ```ts
-- "latest"
+- "latest-{hash}"
 ```
 
 ***

src/cdk-lib/bedrock/README.md

@@ -1066,7 +1066,7 @@ agent.add_action_group(actionGroup)
 
 The `Agent` constructs take an optional parameter `shouldPrepareAgent` to indicate that the Agent should be prepared after any updates to an agent, Knowledge Base association, or action group. This may increase the time to create and update those resources. By default, this value is false .
 
-Creating an agent alias will not prepare the agent, so if you create an alias with `addAlias` or by providing an `aliasName` when creating the agent then you should set `shouldPrepareAgent` to **_true_**.
+Creating an agent alias will not prepare the agent, so if you create an alias using the `AgentAlias` resource then you should set `shouldPrepareAgent` to **_true_**.
 
 #### Prompt Overrides
 

src/cdk-lib/bedrock/agents/agent-alias.ts

@@ -128,7 +128,7 @@ export interface AgentAliasProps {
   /**
    * The name for the agent alias.
    *
-   * @default - "latest"
+   * @default - "latest-{hash}"
    */
   readonly aliasName?: string;
   /**
@@ -215,15 +215,16 @@ export class AgentAlias extends AgentAliasBase {
   constructor(scope: Construct, id: string, props: AgentAliasProps) {
     super(scope, id);
 
+    // Compute hash from agent, to recreate the resource when agent has changed
+    const hash = md5hash(props.agent.agentId + props.agentVersion + props.agent.lastUpdated);
+
     // ------------------------------------------------------
     // Set properties or defaults
     // ------------------------------------------------------
-    this.aliasName = props.aliasName ?? 'latest';
+    // see https://github.com/awslabs/generative-ai-cdk-constructs/issues/947
+    this.aliasName = props.aliasName ?? `latest-${hash}`;
     this.agent = props.agent;
 
-    // Compute hash from agent, to recreate the resource when agent has changed
-    const hash = md5hash(props.agent.agentId + props.agentVersion + props.agent.lastUpdated);
-
     // ------------------------------------------------------
     // L1 Instantiation
     // ------------------------------------------------------