Update README.md

Author: varunrao

aws_emr_blog_v3/README.md

@@ -24,20 +24,15 @@ The code deploys the following:
 
 Review these active items currenlty in under the V3 main branch [https://github.com/aws-samples/aws-emr-apache-ranger/projects/1?card_filter_query=label%3Av3]
 
- 1. If you need to launch this stack in a region `outside US-East-1`, run the following steps, else skip to the next step.
-    - Create a regional S3 bucket in your account in the target region : eg S3 Bucket in eu-north-1: test-emr-eu-north-1
-    - Run the Script [setup-regional-ranger-automation.sh](../aws_emr_blog_v3/scripts/setup-regional-ranger-automation.sh) to copy the required artifacts to the regional bucket (NOTE: this only copies the Lambda code and the EMR bootstrap script)
-  
- 2. Create and Upload SSL keys and certs to AWS Secrets Manager. This is used to encrypt traffic between Ranger server/agents [Script](../aws_emr_blog_v3/scripts/emr-tls/create-tls-certs.sh) 
-   - NOTE: DEFAULT_EC2_REALM parameter value should be "ec2.internal" if US-EAST-1 and "compute.internal" for other regions. AWS_REGION will be the other argument (eg: eu-north-1)
- 3. Create VPC/AD server (takes ~10 min to run) [![Foo](../images/launch_stack.png)](https://console.aws.amazon.com/cloudformation/home?region=us-east-1#/stacks/new?stackName=EMRSecurityWithRangerBlogV3-Step1&templateURL=https://s3.amazonaws.com/aws-bigdata-blog/artifacts/aws-blog-emr-ranger/3.0/cloudformation/step1_vpc-ec2-ad.template)
-    - NOTE: If you are launching this `outside US-East-1`, the `S3Bucket` parameter should be the new regional bucket you created on step 1: eg: test-emr-eu-north-1
- 4. Setup the Ranger Server/RDS Instance/EMR Cluster (takes ~15 min to run) [![Foo](../images/launch_stack.png)](https://console.aws.amazon.com/cloudformation/home?region=us-east-1#/stacks/new?stackName=EMRSecurityWithRangerBlogV3-Step2&templateURL=https://s3.amazonaws.com/aws-bigdata-blog/artifacts/aws-blog-emr-ranger/3.0/cloudformation/step2_ranger-rds-emr.template) 
-    - NOTE: If you are launching this `outside US-East-1`, the `S3Bucket` parameter new regional bucket you created on step 1 : eg: test-emr-eu-north-1
-    - If you need to deploy each of the steps individually follow the steps below:
-      - Deploy RDS instace [![Foo](../images/launch_stack.png)](https://console.aws.amazon.com/cloudformation/home?region=us-east-1#/stacks/new?stackName=EMRSecurityWithRangerBlogV3-Step2&templateURL=https://s3.amazonaws.com/aws-bigdata-blog/artifacts/aws-blog-emr-ranger/3.0/cloudformation/rds-database.template)
-      - Deploy the Ranger server [![Foo](../images/launch_stack.png)](https://console.aws.amazon.com/cloudformation/home?region=us-east-1#/stacks/new?stackName=EMRSecurityWithRangerBlogV3-Step2&templateURL=https://s3.amazonaws.com/aws-bigdata-blog/artifacts/aws-blog-emr-ranger/3.0/cloudformation/ranger-server.template)
-      - Deploy the EMR server [![Foo](../images/launch_stack.png)](https://console.aws.amazon.com/cloudformation/home?region=us-east-1#/stacks/new?stackName=EMRSecurityWithRangerBlogV3-Step2&templateURL=https://s3.amazonaws.com/aws-bigdata-blog/artifacts/aws-blog-emr-ranger/3.0/cloudformation/emr-template.template)
+ 1. Create VPC/AD server (takes ~10 min to run) [![Foo](../images/launch_stack.png)](https://console.aws.amazon.com/cloudformation/home?region=us-east-1#/stacks/new?stackName=EMRSecurityWithRangerBlogV3-Step1&templateURL=https://s3.amazonaws.com/aws-bigdata-blog/artifacts/aws-blog-emr-ranger/v3/cloudformation/step1_vpc-ec2-ad.template)
+    - NOTE: The 'beta' code supports multi-region deployment by creating a new regional bucket
+ 2. Setup the Ranger Server/RDS Instance/EMR Cluster (takes ~15 min to run) [![Foo](../images/launch_stack.png)](https://console.aws.amazon.com/cloudformation/home?region=us-east-1#/stacks/new?stackName=EMRSecurityWithRangerBlogV3-Step2&templateURL=https://s3.amazonaws.com/aws-bigdata-blog/artifacts/aws-blog-emr-ranger/v3/cloudformation/step2_ranger-rds-emr.template)
+  - NOTE: The 'V3' code now supports multi-region deployment by creating a new regional bucket. Make sure you select the following parameter values to allow multi-region deployment (required is cluster in not in US-EAST-1) and automatic creation of the self-signed certs required by EMR for Ranger integration. 
+    - **CreateRegionalS3BucketAndCopyScripts: 'true'** -- Will create a regional bucket and copy the required files
+    - **CreateTLSCerts: 'true'** -- Will create self-signed certs and upload to Secrets manager
+    
+    ![image](https://user-images.githubusercontent.com/1559391/211591074-7260e5f7-3fd0-4e82-9d81-fbdc93350d70.png)
+    ![image](https://user-images.githubusercontent.com/1559391/211591175-45e592ca-7207-47f6-8f79-77cda7154d2d.png)
 
 ## (BETA code) Cloudformation Launch Steps:
 All active development code is under the Beta branch. Review these active items currenlty in Beta (https://github.com/aws-samples/aws-emr-apache-ranger/projects/1?card_filter_query=label%3Abeta). NOTE: It may not be fully tested and may not work with all EMR versions.