The televisit deployment fails

[simmkyu]

Demo
Specify the name of the demo that you encountered the bug.

Describe the bug

Running the ./deploy.sh script failed with the following errors:

Deploy this changeset? [y/N]: y

2022-02-11 15:18:03 - Waiting for stack create/update to complete

CloudFormation events from changeset
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ResourceStatus                                 ResourceType                                   LogicalResourceId                              ResourceStatusReason                         
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
CREATE_IN_PROGRESS                             AWS::CloudFront::CloudFrontOriginAccessIdent   CloudFrontDistributionAccessIdentity           -                                            
                                               ity                                                                                                                                        
CREATE_IN_PROGRESS                             AWS::S3::Bucket                                createWebSiteS3Bucket                          -                                            
CREATE_FAILED                                  AWS::S3::Bucket                                createWebSiteS3Bucket                          frontenddeploy already exists                
CREATE_FAILED                                  AWS::CloudFront::CloudFrontOriginAccessIdent   CloudFrontDistributionAccessIdentity           Resource creation cancelled                  
                                               ity                                                                                                                                        
ROLLBACK_IN_PROGRESS                           AWS::CloudFormation::Stack                     chime-sdk-televisit-frontend                   The following resource(s) failed to create:  
                                                                                                                                             [createWebSiteS3Bucket,                      
                                                                                                                                             CloudFrontDistributionAccessIdentity].       
                                                                                                                                             Rollback requested by user.                  
DELETE_COMPLETE                                AWS::S3::Bucket                                createWebSiteS3Bucket                          -                                            
DELETE_COMPLETE                                AWS::CloudFront::CloudFrontOriginAccessIdent   CloudFrontDistributionAccessIdentity           -                                            
                                               ity                                                                                                                                        
ROLLBACK_COMPLETE                              AWS::CloudFormation::Stack                     chime-sdk-televisit-frontend                   -                                            
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Error: Failed to create/update the stack: chime-sdk-televisit-frontend, Waiter StackCreateComplete failed: Waiter encountered a terminal failure state: For expression "Stacks[].StackStatus" we matched expected path: "ROLLBACK_COMPLETE" at least once

Copying Files to S3
upload failed: dist/chat-bundle.js to s3://None/chat-bundle.js An error occurred (NoSuchBucket) when calling the CreateMultipartUpload operation: The specified bucket does not exist
upload failed: dist/chat.html to s3://None/chat.html An error occurred (NoSuchBucket) when calling the PutObject operation: The specified bucket does not exist

The frontend stack failed in the CloudFormation console. The last status is ROLLBACK_COMPLETE.

To Reproduce
Steps to reproduce the behavior:

1. Clone https://github.com/aws-samples/amazon-chime-sdk/tree/main/apps/televisit-demo
2. Run the deployment script:

   cd apps/televisit-demo
   ./deploy.sh
   

Expected behavior
A clear and concise description of what you expected to happen.

The deployment should succeed without any error.

Desktop (please complete the following information):

• OS: macOS 11.6.2
• Browser: N/A
• Version: N/A

[simmkyu]

The issue is that the default frontend bucket name is frontenddeploy.

• We should append random strings or let CF choose the name if a builder does not provide it.
• If a builder provides a duplicated bucket name, the deployment step should warn and let them choose a new name. Currently, the frontend stack's deployment is automatically rolled back for duplicate name errors. A builder needs to delete all stacks and buckets to try again.