Support for FIFO SNS Topics

[azec-pdx]

what

• Adds ability to support deploying FIFO - type SNS Topics

why

• Customers might need FIFO SNS Topics with FIFO SQS queues subscribed
• This allows them to use module in following way

   module "sns" {
       source = "git::https://github.com/cloudposse/terraform-aws-sns-topic.git//?ref=tags/<FUTURE_TAG>"
       
       fifo_topic                  = var.fifo_topic
       name                        = module.this.id # e.g. mytopic.fifo   
       regex_replace_chars         = var.regex_replace_chars     # e.g. "/[^.a-zA-Z0-9-]/"  - required to prevent removal of '.' char in '.fifo' suffix
       sqs_dlq_enabled             = false # Until valid case neeed for this and until CP fixes https://github.com/cloudposse/terraform-aws-sns-topic/blob/master/main.tf#L20
       subscribers                 = var.subscribers
       content_based_deduplication = var.content_based_deduplication
     
       # SNS Topic policies related variables
       sns_topic_policy_json                  = var.sns_topic_policy_json
       allowed_aws_services_for_sns_published = var.allowed_aws_services_for_sns_published
       allowed_iam_arns_for_sns_publish       = var.allowed_iam_arns_for_sns_publish
   }

  and then upstream to use this as:

   module "my_topic_and_subscribers" {
     source = "../../components/sns_topic_w_subscribers"
   
     environment                 = var.environment
     fifo_topic                  = true # has to be fifo for FIFO SQS queue subscribers (which all are)
     content_based_deduplication = true
     name                        = "my-topic.fifo" # suffix .fifo is required by AWS for this type of SNS Topic
     namespace                   = var.namespace
     regex_replace_chars         = "/[^.a-zA-Z0-9-]/" # required to prevent removal of '.' char in '.fifo' suffix
     region                      = var.region
     subscribers = {
       my_sqs_fifo = {
         endpoint               = module.my_queue_fifo.queue_arn # ARN of the SQS that will be subscribed to SNS topic
         endpoint_auto_confirms = true
         protocol               = "sqs",
         raw_message_delivery   = false
       }
     }
     sns_topic_policy_json = data.aws_iam_policy_document.my_topic_policy_document.json
   }
  

references

• N/A

[azec-pdx]

/test all

[aknysh]

/test all

[aknysh]

/test all

[aknysh]

thanks @azec-pdx please see comments

[azec-pdx]

thanks @azec-pdx please see comments

Hey @aknysh , I have addressed your comments....

[aknysh]

/test all

[aknysh]

thanks @azec-pdx