updates to the dynamic reference lab templates \ module (#195)

* updates to the dynamic reference lab templates

* Bump version: 2.4.1 → 2.4.2

* Update content/intermediate/templates/dynamic-references/index.md

---------

Co-authored-by: Matteo Rinaudo <52245107+mrinaudo-aws@users.noreply.github.com>

.bumpversion.cfg

@@ -1,4 +1,4 @@
 [bumpversion]
-current_version = 2.4.1
+current_version = 2.4.2
 commit = True
 tag = False

code/solutions/dynamic-references/database.yaml

@@ -23,6 +23,7 @@ Parameters:
 
 Resources:
   Database:
+    DeletionPolicy: Delete
     Type: AWS::RDS::DBInstance
     Metadata:
       cfn_nag:

code/workspace/dynamic-references/database.yaml

@@ -23,6 +23,7 @@ Parameters:
 
 Resources:
   Database:
+    DeletionPolicy: Delete
     Type: AWS::RDS::DBInstance
     Metadata:
       cfn_nag:

content/intermediate/templates/dynamic-references/index.md

@@ -31,7 +31,7 @@ In this lab, you will create a Parameter Store parameter to persist an AMI ID: i
 
 Let’s get started! Choose to follow steps shown next:
 
-1. Navigate to the Amazon EC2 [Console](https://console.aws.amazon.com/ec2/v2/home?region=us-east-1#LaunchInstanceWizard:), and [choose the Region](https://docs.aws.amazon.com/awsconsolehelpdocs/latest/gsg/select-region.html) you wish to use. Next, locate the latest *Amazon Linux 2 AMI, (64-bit x86)*, and note the AMI ID (e.g., `ami-abcd1234`). You will use this value in the next step.
+1. Navigate to the Amazon EC2 [Console](https://us-east-1.console.aws.amazon.com/ec2/home?region=us-east-1#LaunchInstances:), and [choose the Region](https://docs.aws.amazon.com/awsconsolehelpdocs/latest/gsg/select-region.html) you wish to use. Next, locate the latest *Amazon Linux 2 AMI, (64-bit x86)*, and note the AMI ID (e.g., `ami-abcd1234`). You will use this value in the next step.
 
 ![ec2](/static/intermediate/templates/dynamic-references/ec2-console-ami-picker.png)
 
@@ -97,7 +97,7 @@ Let’s get started! Choose to follow steps shown next:
     1. Make sure you are in the `code/workspace/dynamic-references` directory.
     2. Open the `database.yaml` CloudFormation template in your favorite text editor.
     3. Note the following resources in the template:
-        1. the resource of type `AWS::RDS::DBInstance`, with which you describe your Amazon RDS instance;
+        1. the resource of type `AWS::RDS::DBInstance`, with which you describe your Amazon RDS instance. **Note:** for resources of the type `AWS::RDS::DBInstance` that don't specify the `DBClusterIdentifier` property (as in the example for this lab), if a [deletion policy](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-deletionpolicy.html) is not explicitly defined, the deletion policy defaults to `Snapshot`, and CloudFormation creates a snapshot for the resource before deleting it. In this lab, `DeletionPolicy` for the resource is set to `Delete` to skip snapshot creation on delete.
         2. the resource of type `AWS::SecretsManager::Secret`, where you will store database connection parameters, as JSON key-value pairs, in a secret named `DatabaseConnParams`:
    ```json
    {
@@ -119,6 +119,7 @@ Let’s get started! Choose to follow steps shown next:
     9. On the **Review** page for your stack, scroll down to the bottom, and choose **Create stack**.
     10. You can view the progress of stack being created in the CloudFormation Console, by refreshing the stack creation page.
     11. Refresh the page until you see the `CREATE_COMPLETE` status for your stack.
+
 3. Next, you will create an AWS Lambda Function, and read a number of database connection parameters as [Environment Variables](https://docs.aws.amazon.com/lambda/latest/dg/configuration-envvars.html) to your Lambda function, by using dynamic references to the Secrets Manager secret you created earlier.
     1. Make sure you are in the `code/workspace/dynamic-references` directory.
     2. Open the `lambda-function.yaml` CloudFormation template in your favorite text editor.